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深入理解PHP之數組遍歷順序

Aug 08, 2016 am 09:21 AM

font px quot style

常常會有人問我, PHP的數組, 如果用foreach來訪問, 遍歷的順序是固定的麼? 以什麼順序遍歷呢?
比如:

&lt;ol style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline; list-style-type: none;&quot;&gt;&lt;li style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;&lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;&lt;?php&lt;/span&gt;&lt;/li&gt;&lt;li style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;&lt;span class=&quot;sh_variable&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-family: inherit; vertical-align: baseline; color: rgb(198, 197, 254);&quot;&gt;$arr&lt;/span&gt;&lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;[&lt;/span&gt;&lt;span class=&quot;sh_string&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-family: inherit; vertical-align: baseline; color: rgb(168, 255, 96);&quot;&gt;'laruence'&lt;/span&gt;&lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;]&lt;/span&gt; &lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;=&lt;/span&gt; &lt;span class=&quot;sh_string&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-family: inherit; vertical-align: baseline; color: rgb(168, 255, 96);&quot;&gt;'huixinchen'&lt;/span&gt;&lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;;&lt;/span&gt;&lt;/li&gt;&lt;li style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;&lt;span class=&quot;sh_variable&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-family: inherit; vertical-align: baseline; color: rgb(198, 197, 254);&quot;&gt;$arr&lt;/span&gt;&lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;[&lt;/span&gt;&lt;span class=&quot;sh_string&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-family: inherit; vertical-align: baseline; color: rgb(168, 255, 96);&quot;&gt;'yahoo'&lt;/span&gt;&lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;]&lt;/span&gt;    &lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;=&lt;/span&gt; &lt;span class=&quot;sh_number&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-family: inherit; vertical-align: baseline; color: rgb(255, 115, 253);&quot;&gt;2007&lt;/span&gt;&lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;;&lt;/span&gt;&lt;/li&gt;&lt;li style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;&lt;span class=&quot;sh_variable&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-family: inherit; vertical-align: baseline; color: rgb(198, 197, 254);&quot;&gt;$arr&lt;/span&gt;&lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;[&lt;/span&gt;&lt;span class=&quot;sh_string&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-family: inherit; vertical-align: baseline; color: rgb(168, 255, 96);&quot;&gt;'baidu'&lt;/span&gt;&lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;]&lt;/span&gt;    &lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;=&lt;/span&gt; &lt;span class=&quot;sh_number&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-family: inherit; vertical-align: baseline; color: rgb(255, 115, 253);&quot;&gt;2008&lt;/span&gt;&lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;;&lt;/span&gt;&lt;/li&gt;&lt;li style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;&lt;span class=&quot;sh_keyword&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-family: inherit; vertical-align: baseline; color: rgb(150, 203, 254);&quot;&gt;foreach&lt;/span&gt; &lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;sh_variable&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-family: inherit; vertical-align: baseline; color: rgb(198, 197, 254);&quot;&gt;$arr&lt;/span&gt; &lt;span class=&quot;sh_keyword&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-family: inherit; vertical-align: baseline; color: rgb(150, 203, 254);&quot;&gt;as&lt;/span&gt; &lt;span class=&quot;sh_variable&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-family: inherit; vertical-align: baseline; color: rgb(198, 197, 254);&quot;&gt;$key&lt;/span&gt; &lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;=&gt;&lt;/span&gt; &lt;span class=&quot;sh_variable&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-family: inherit; vertical-align: baseline; color: rgb(198, 197, 254);&quot;&gt;$val&lt;/span&gt;&lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;)&lt;/span&gt; &lt;span class=&quot;sh_cbracket&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;{&lt;/span&gt;&lt;/li&gt;&lt;li style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;&lt;span class=&quot;sh_comment&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-family: inherit; vertical-align: baseline; color: rgb(124, 124, 124);&quot;&gt;//结果是什么?&lt;/span&gt;&lt;/li&gt;&lt;li style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;&lt;span class=&quot;sh_cbracket&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;}&lt;/span&gt;&lt;/li&gt;&lt;/ol&gt;

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又比如:

&lt;ol style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline; list-style-type: none;&quot;&gt;&lt;li style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;&lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;&lt;?php&lt;/span&gt;&lt;/li&gt;&lt;li style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;&lt;span class=&quot;sh_variable&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-family: inherit; vertical-align: baseline; color: rgb(198, 197, 254);&quot;&gt;$arr&lt;/span&gt;&lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;[&lt;/span&gt;&lt;span class=&quot;sh_number&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-family: inherit; vertical-align: baseline; color: rgb(255, 115, 253);&quot;&gt;2&lt;/span&gt;&lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;]&lt;/span&gt; &lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;=&lt;/span&gt; &lt;span class=&quot;sh_string&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-family: inherit; vertical-align: baseline; color: rgb(168, 255, 96);&quot;&gt;'huixinchen'&lt;/span&gt;&lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;;&lt;/span&gt;&lt;/li&gt;&lt;li style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;&lt;span class=&quot;sh_variable&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-family: inherit; vertical-align: baseline; color: rgb(198, 197, 254);&quot;&gt;$arr&lt;/span&gt;&lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;[&lt;/span&gt;&lt;span class=&quot;sh_number&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-family: inherit; vertical-align: baseline; color: rgb(255, 115, 253);&quot;&gt;1&lt;/span&gt;&lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;]&lt;/span&gt;  &lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;=&lt;/span&gt; &lt;span class=&quot;sh_number&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-family: inherit; vertical-align: baseline; color: rgb(255, 115, 253);&quot;&gt;2007&lt;/span&gt;&lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;;&lt;/span&gt;&lt;/li&gt;&lt;li style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;&lt;span class=&quot;sh_variable&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-family: inherit; vertical-align: baseline; color: rgb(198, 197, 254);&quot;&gt;$arr&lt;/span&gt;&lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;[&lt;/span&gt;&lt;span class=&quot;sh_number&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-family: inherit; vertical-align: baseline; color: rgb(255, 115, 253);&quot;&gt;0&lt;/span&gt;&lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;]&lt;/span&gt;  &lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;=&lt;/span&gt; &lt;span class=&quot;sh_number&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-family: inherit; vertical-align: baseline; color: rgb(255, 115, 253);&quot;&gt;2008&lt;/span&gt;&lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;;&lt;/span&gt;&lt;/li&gt;&lt;li style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;&lt;span class=&quot;sh_keyword&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-family: inherit; vertical-align: baseline; color: rgb(150, 203, 254);&quot;&gt;foreach&lt;/span&gt; &lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;sh_variable&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-family: inherit; vertical-align: baseline; color: rgb(198, 197, 254);&quot;&gt;$arr&lt;/span&gt; &lt;span class=&quot;sh_keyword&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-family: inherit; vertical-align: baseline; color: rgb(150, 203, 254);&quot;&gt;as&lt;/span&gt; &lt;span class=&quot;sh_variable&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-family: inherit; vertical-align: baseline; color: rgb(198, 197, 254);&quot;&gt;$key&lt;/span&gt; &lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;=&gt;&lt;/span&gt; &lt;span class=&quot;sh_variable&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-family: inherit; vertical-align: baseline; color: rgb(198, 197, 254);&quot;&gt;$val&lt;/span&gt;&lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;)&lt;/span&gt; &lt;span class=&quot;sh_cbracket&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;{&lt;/span&gt;&lt;/li&gt;&lt;li style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;&lt;span class=&quot;sh_comment&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-family: inherit; vertical-align: baseline; color: rgb(124, 124, 124);&quot;&gt;//现在结果又是什么?&lt;/span&gt;&lt;/li&gt;&lt;li style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;&lt;span class=&quot;sh_cbracket&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;}&lt;/span&gt;&lt;/li&gt;&lt;/ol&gt;

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rreee比如:

&lt;ol style=&quot;margin: 0px; padding: 0px; border: 0px; border-image-source: initial; border-image-slice: initial; border-image-width: initial; border-image-outset: initial; border-image-repeat: initial; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline; list-style-type: none;&quot;&gt;&lt;li style=&quot;margin: 0px; padding: 0px; border: 0px; border-image-source: initial; border-image-slice: initial; border-image-width: initial; border-image-outset: initial; border-image-repeat: initial; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline; background-color: rgb(51, 51, 51);&quot;&gt;&lt;span class=&quot;sh_keyword&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-family: inherit; vertical-align: baseline; color: rgb(150, 203, 254);&quot;&gt;typedef&lt;/span&gt; &lt;span class=&quot;sh_keyword&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-family: inherit; vertical-align: baseline; color: rgb(150, 203, 254);&quot;&gt;struct&lt;/span&gt;&lt;span class=&quot;sh_normal&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt; &lt;/span&gt;&lt;span class=&quot;sh_classname&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;_hashtable&lt;/span&gt; &lt;span class=&quot;sh_cbracket&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;{&lt;/span&gt;&lt;/li&gt;&lt;li style=&quot;margin: 0px; padding: 0px; border: 0px; border-image-source: initial; border-image-slice: initial; border-image-width: initial; border-image-outset: initial; border-image-repeat: initial; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline; background-color: rgb(51, 51, 51);&quot;&gt;&lt;span class=&quot;sh_usertype&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;uint&lt;/span&gt;&lt;span class=&quot;sh_normal&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt; &lt;/span&gt;nTableSize&lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;;&lt;/span&gt;        &lt;span class=&quot;sh_comment&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-family: inherit; vertical-align: baseline; color: rgb(124, 124, 124);&quot;&gt;/* 散列表大小, Hash值的区间 */&lt;/span&gt;&lt;/li&gt;&lt;li style=&quot;margin: 0px; padding: 0px; border: 0px; border-image-source: initial; border-image-slice: initial; border-image-width: initial; border-image-outset: initial; border-image-repeat: initial; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline; background-color: rgb(51, 51, 51);&quot;&gt;&lt;span class=&quot;sh_usertype&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;uint&lt;/span&gt;&lt;span class=&quot;sh_normal&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt; &lt;/span&gt;nTableMask&lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;;&lt;/span&gt;        &lt;span class=&quot;sh_comment&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-family: inherit; vertical-align: baseline; color: rgb(124, 124, 124);&quot;&gt;/* 等于nTableSize -1, 用于快速定位,相当于是取模 */&lt;/span&gt;&lt;/li&gt;&lt;li style=&quot;margin: 0px; padding: 0px; border: 0px; border-image-source: initial; border-image-slice: initial; border-image-width: initial; border-image-outset: initial; border-image-repeat: initial; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline; background-color: rgb(51, 51, 51);&quot;&gt;&lt;span class=&quot;sh_usertype&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;uint&lt;/span&gt;&lt;span class=&quot;sh_normal&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt; &lt;/span&gt;nNumOfElements&lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;;&lt;/span&gt;    &lt;span class=&quot;sh_comment&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-family: inherit; vertical-align: baseline; color: rgb(124, 124, 124);&quot;&gt;/* HashTable中实际元素的个数 */&lt;/span&gt;&lt;/li&gt;&lt;li style=&quot;margin: 0px; padding: 0px; border: 0px; border-image-source: initial; border-image-slice: initial; border-image-width: initial; border-image-outset: initial; border-image-repeat: initial; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;&lt;span class=&quot;sh_usertype&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; border-image-source: initial; border-image-slice: initial; border-image-width: initial; border-image-outset: initial; border-image-repeat: initial; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline; background-color: rgb(51, 51, 51);&quot;&gt;ulong&lt;/span&gt;&lt;span class=&quot;sh_normal&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; border-image-source: initial; border-image-slice: initial; border-image-width: initial; border-image-outset: initial; border-image-repeat: initial; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline; background-color: rgb(51, 51, 51);&quot;&gt; &lt;/span&gt;&lt;span style=&quot;background-color: rgb(51, 51, 51);&quot;&gt;nNextFreeElement&lt;/span&gt;&lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; border-image-source: initial; border-image-slice: initial; border-image-width: initial; border-image-outset: initial; border-image-repeat: initial; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline; background-color: rgb(51, 51, 51);&quot;&gt;;&lt;/span&gt;&lt;span style=&quot;background-color: rgb(51, 51, 51);&quot;&gt; &lt;/span&gt;&lt;span class=&quot;sh_comment&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; border-image-source: initial; border-image-slice: initial; border-image-width: initial; border-image-outset: initial; border-image-repeat: initial; font-family: inherit; vertical-align: baseline; color: rgb(124, 124, 124);&quot;&gt;&lt;span style=&quot;background-color: rgb(51, 51, 51);&quot;&gt;/* 下个空闲可用位置的数字索引,&lt;/span&gt;&lt;span style=&quot;background-color: rgb(0, 0, 153);&quot;&gt;执行$arr[]='xxx'时使用这个值&lt;/span&gt;&lt;span style=&quot;background-color: rgb(51, 51, 51);&quot;&gt; */&lt;/span&gt;&lt;/span&gt;&lt;/li&gt;&lt;li style=&quot;margin: 0px; padding: 0px; border: 0px; border-image-source: initial; border-image-slice: initial; border-image-width: initial; border-image-outset: initial; border-image-repeat: initial; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline; background-color: rgb(51, 51, 51);&quot;&gt;&lt;span class=&quot;sh_usertype&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;Bucket&lt;/span&gt;&lt;span class=&quot;sh_normal&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt; &lt;/span&gt;&lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;*&lt;/span&gt;pInternalPointer&lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;;&lt;/span&gt;   &lt;span class=&quot;sh_comment&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-family: inherit; vertical-align: baseline; color: rgb(124, 124, 124);&quot;&gt;/* 内部位置指针, 会被reset, current这些遍历函数使用 */&lt;/span&gt;&lt;/li&gt;&lt;li style=&quot;margin: 0px; padding: 0px; border: 0px; border-image-source: initial; border-image-slice: initial; border-image-width: initial; border-image-outset: initial; border-image-repeat: initial; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline; background-color: rgb(51, 51, 51);&quot;&gt;&lt;span class=&quot;sh_usertype&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;Bucket&lt;/span&gt;&lt;span class=&quot;sh_normal&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt; &lt;/span&gt;&lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;*&lt;/span&gt;pListHead&lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;;&lt;/span&gt;      &lt;span class=&quot;sh_comment&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-family: inherit; vertical-align: baseline; color: rgb(124, 124, 124);&quot;&gt;/* 头元素, 用于线性遍历 */&lt;/span&gt;&lt;/li&gt;&lt;li style=&quot;margin: 0px; padding: 0px; border: 0px; border-image-source: initial; border-image-slice: initial; border-image-width: initial; border-image-outset: initial; border-image-repeat: initial; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline; background-color: rgb(51, 51, 51);&quot;&gt;&lt;span class=&quot;sh_usertype&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;Bucket&lt;/span&gt;&lt;span class=&quot;sh_normal&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt; &lt;/span&gt;&lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;*&lt;/span&gt;pListTail&lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;;&lt;/span&gt;      &lt;span class=&quot;sh_comment&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-family: inherit; vertical-align: baseline; color: rgb(124, 124, 124);&quot;&gt;/* 尾元素, 用于线性遍历 */&lt;/span&gt;&lt;/li&gt;&lt;li style=&quot;margin: 0px; padding: 0px; border: 0px; border-image-source: initial; border-image-slice: initial; border-image-width: initial; border-image-outset: initial; border-image-repeat: initial; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;&lt;span class=&quot;sh_usertype&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; border-image-source: initial; border-image-slice: initial; border-image-width: initial; border-image-outset: initial; border-image-repeat: initial; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline; background-color: rgb(51, 51, 51);&quot;&gt;Bucket&lt;/span&gt;&lt;span class=&quot;sh_normal&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; border-image-source: initial; border-image-slice: initial; border-image-width: initial; border-image-outset: initial; border-image-repeat: initial; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline; background-color: rgb(51, 51, 51);&quot;&gt; &lt;/span&gt;&lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; border-image-source: initial; border-image-slice: initial; border-image-width: initial; border-image-outset: initial; border-image-repeat: initial; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline; background-color: rgb(51, 51, 51);&quot;&gt;**&lt;/span&gt;&lt;span style=&quot;background-color: rgb(51, 51, 51);&quot;&gt;arBuckets&lt;/span&gt;&lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; border-image-source: initial; border-image-slice: initial; border-image-width: initial; border-image-outset: initial; border-image-repeat: initial; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline; background-color: rgb(51, 51, 51);&quot;&gt;;&lt;/span&gt;&lt;span style=&quot;background-color: rgb(51, 51, 51);&quot;&gt;     &lt;/span&gt;&lt;span class=&quot;sh_comment&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; border-image-source: initial; border-image-slice: initial; border-image-width: initial; border-image-outset: initial; border-image-repeat: initial; font-family: inherit; vertical-align: baseline; color: rgb(124, 124, 124);&quot;&gt;&lt;span style=&quot;background-color: rgb(51, 51, 51);&quot;&gt;/* 实际的存储容器&lt;/span&gt;&lt;span style=&quot;background-color: rgb(0, 0, 153);&quot;&gt;（&lt;span class=&quot;sh_usertype&quot; style=&quot;color: rgb(246, 243, 232); font-family: inherit; font-style: inherit; font-weight: inherit; line-height: 18px; white-space: pre; margin: 0px; padding: 0px; border: 0px; border-image-source: initial; border-image-slice: initial; border-image-width: initial; border-image-outset: initial; border-image-repeat: initial; vertical-align: baseline;&quot;&gt;Bucket&lt;/span&gt;&lt;span class=&quot;sh_normal&quot; style=&quot;color: rgb(246, 243, 232); font-family: inherit; font-style: inherit; font-weight: inherit; line-height: 18px; white-space: pre; margin: 0px; padding: 0px; border: 0px; border-image-source: initial; border-image-slice: initial; border-image-width: initial; border-image-outset: initial; border-image-repeat: initial; vertical-align: baseline;&quot;&gt; &lt;/span&gt;&lt;span class=&quot;sh_symbol&quot; style=&quot;color: rgb(246, 243, 232); font-family: inherit; font-style: inherit; font-weight: inherit; line-height: 18px; white-space: pre; margin: 0px; padding: 0px; border: 0px; border-image-source: initial; border-image-slice: initial; border-image-width: initial; border-image-outset: initial; border-image-repeat: initial; vertical-align: baseline;&quot;&gt;**&lt;/span&gt;&lt;span style=&quot;color: rgb(246, 243, 232); font-family: Monaco, Consolas, Courier, monospace; line-height: 18px; white-space: pre;&quot;&gt;arBuckets&lt;/span&gt;定义一个指针数组的另一种方式）&lt;/span&gt;&lt;span style=&quot;background-color: rgb(51, 51, 51);&quot;&gt; */&lt;/span&gt;&lt;/span&gt;&lt;/li&gt;&lt;li style=&quot;margin: 0px; padding: 0px; border: 0px; border-image-source: initial; border-image-slice: initial; border-image-width: initial; border-image-outset: initial; border-image-repeat: initial; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline; background-color: rgb(51, 51, 51);&quot;&gt;&lt;span class=&quot;sh_usertype&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;dtor_func_t&lt;/span&gt;&lt;span class=&quot;sh_normal&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt; &lt;/span&gt;pDestructor&lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;;&lt;/span&gt;&lt;span class=&quot;sh_comment&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-family: inherit; vertical-align: baseline; color: rgb(124, 124, 124);&quot;&gt;/* 元素的析构函数(指针) */&lt;/span&gt;&lt;/li&gt;&lt;li style=&quot;margin: 0px; padding: 0px; border: 0px; border-image-source: initial; border-image-slice: initial; border-image-width: initial; border-image-outset: initial; border-image-repeat: initial; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline; background-color: rgb(51, 51, 51);&quot;&gt;&lt;span class=&quot;sh_usertype&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;zend_bool&lt;/span&gt;&lt;span class=&quot;sh_normal&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt; &lt;/span&gt;persistent&lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;;&lt;/span&gt;&lt;/li&gt;&lt;li style=&quot;margin: 0px; padding: 0px; border: 0px; border-image-source: initial; border-image-slice: initial; border-image-width: initial; border-image-outset: initial; border-image-repeat: initial; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline; background-color: rgb(51, 51, 51);&quot;&gt;&lt;span class=&quot;sh_type&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-family: inherit; vertical-align: baseline; color: rgb(255, 255, 182);&quot;&gt;unsigned&lt;/span&gt; &lt;span class=&quot;sh_type&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-family: inherit; vertical-align: baseline; color: rgb(255, 255, 182);&quot;&gt;char&lt;/span&gt; nApplyCount&lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;;&lt;/span&gt; &lt;span class=&quot;sh_comment&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-family: inherit; vertical-align: baseline; color: rgb(124, 124, 124);&quot;&gt;/* 循环遍历保护 */&lt;/span&gt;&lt;/li&gt;&lt;li style=&quot;margin: 0px; padding: 0px; border: 0px; border-image-source: initial; border-image-slice: initial; border-image-width: initial; border-image-outset: initial; border-image-repeat: initial; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline; background-color: rgb(51, 51, 51);&quot;&gt;&lt;span class=&quot;sh_usertype&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;zend_bool&lt;/span&gt;&lt;span class=&quot;sh_normal&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt; &lt;/span&gt;bApplyProtection&lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;;&lt;/span&gt;&lt;/li&gt;&lt;li style=&quot;margin: 0px; padding: 0px; border: 0px; border-image-source: initial; border-image-slice: initial; border-image-width: initial; border-image-outset: initial; border-image-repeat: initial; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline; background-color: rgb(51, 51, 51);&quot;&gt;&lt;span class=&quot;sh_preproc&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-family: inherit; vertical-align: baseline; color: rgb(255, 210, 167);&quot;&gt;#if&lt;/span&gt; ZEND_DEBUG&lt;/li&gt;&lt;li style=&quot;margin: 0px; padding: 0px; border: 0px; border-image-source: initial; border-image-slice: initial; border-image-width: initial; border-image-outset: initial; border-image-repeat: initial; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline; background-color: rgb(51, 51, 51);&quot;&gt;&lt;span class=&quot;sh_type&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-family: inherit; vertical-align: baseline; color: rgb(255, 255, 182);&quot;&gt;int&lt;/span&gt; inconsistent&lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;;&lt;/span&gt;&lt;/li&gt;&lt;li style=&quot;margin: 0px; padding: 0px; border: 0px; border-image-source: initial; border-image-slice: initial; border-image-width: initial; border-image-outset: initial; border-image-repeat: initial; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline; background-color: rgb(51, 51, 51);&quot;&gt;&lt;span class=&quot;sh_preproc&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-family: inherit; vertical-align: baseline; color: rgb(255, 210, 167);&quot;&gt;#endif&lt;/span&gt;&lt;/li&gt;&lt;li style=&quot;margin: 0px; padding: 0px; border: 0px; border-image-source: initial; border-image-slice: initial; border-image-width: initial; border-image-outset: initial; border-image-repeat: initial; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline; background-color: rgb(51, 51, 51);&quot;&gt;&lt;span class=&quot;sh_cbracket&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;}&lt;/span&gt; HashTable&lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;;&lt;/span&gt;&lt;/li&gt;&lt;/ol&gt;

登入後複製

又比如:

&lt;ol style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline; list-style-type: none;&quot;&gt;&lt;li style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;&lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;&lt;?php&lt;/span&gt;&lt;/li&gt;&lt;li style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;    &lt;span class=&quot;sh_variable&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-family: inherit; vertical-align: baseline; color: rgb(198, 197, 254);&quot;&gt;$arr&lt;/span&gt; &lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;=&lt;/span&gt; &lt;span class=&quot;sh_keyword&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-family: inherit; vertical-align: baseline; color: rgb(150, 203, 254);&quot;&gt;array&lt;/span&gt;&lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;sh_number&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-family: inherit; vertical-align: baseline; color: rgb(255, 115, 253);&quot;&gt;1&lt;/span&gt;&lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;,&lt;/span&gt;&lt;span class=&quot;sh_number&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-family: inherit; vertical-align: baseline; color: rgb(255, 115, 253);&quot;&gt;2&lt;/span&gt;&lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;,&lt;/span&gt;&lt;span class=&quot;sh_number&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-family: inherit; vertical-align: baseline; color: rgb(255, 115, 253);&quot;&gt;3&lt;/span&gt;&lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;,&lt;/span&gt;&lt;span class=&quot;sh_number&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-family: inherit; vertical-align: baseline; color: rgb(255, 115, 253);&quot;&gt;4&lt;/span&gt;&lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;,&lt;/span&gt;&lt;span class=&quot;sh_number&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-family: inherit; vertical-align: baseline; color: rgb(255, 115, 253);&quot;&gt;5&lt;/span&gt;&lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;,);&lt;/span&gt;&lt;/li&gt;&lt;li style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;    &lt;span class=&quot;sh_variable&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-family: inherit; vertical-align: baseline; color: rgb(198, 197, 254);&quot;&gt;$arr&lt;/span&gt;&lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;[]&lt;/span&gt; &lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;=&lt;/span&gt; &lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;&amp;&lt;/span&gt;&lt;span class=&quot;sh_variable&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-family: inherit; vertical-align: baseline; color: rgb(198, 197, 254);&quot;&gt;$arr&lt;/span&gt;&lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;;&lt;/span&gt;&lt;/li&gt;&lt;li style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt; &lt;/li&gt;&lt;li style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;    &lt;span class=&quot;sh_function&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-family: inherit; vertical-align: baseline; color: rgb(255, 210, 167);&quot;&gt;var_export&lt;/span&gt;&lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;(&lt;/span&gt;&lt;span class=&quot;sh_variable&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-family: inherit; vertical-align: baseline; color: rgb(198, 197, 254);&quot;&gt;$arr&lt;/span&gt;&lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;);&lt;/span&gt; &lt;span class=&quot;sh_comment&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-family: inherit; vertical-align: baseline; color: rgb(124, 124, 124);&quot;&gt;//Fatal error: Nesting level too deep - recursive dependency?&lt;/span&gt;&lt;/li&gt;&lt;/ol&gt;

登入後複製

&lt;ol style=&quot;margin: 0px; padding: 0px; border: 0px; border-image-source: initial; border-image-slice: initial; border-image-width: initial; border-image-outset: initial; border-image-repeat: initial; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline; list-style-type: none;&quot;&gt;&lt;li style=&quot;margin: 0px; padding: 0px; border: 0px; border-image-source: initial; border-image-slice: initial; border-image-width: initial; border-image-outset: initial; border-image-repeat: initial; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline; background-color: rgb(51, 51, 51);&quot;&gt;&lt;span class=&quot;sh_keyword&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-family: inherit; vertical-align: baseline; color: rgb(150, 203, 254);&quot;&gt;typedef&lt;/span&gt; &lt;span class=&quot;sh_keyword&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-family: inherit; vertical-align: baseline; color: rgb(150, 203, 254);&quot;&gt;struct&lt;/span&gt;&lt;span class=&quot;sh_normal&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt; &lt;/span&gt;&lt;span class=&quot;sh_classname&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;bucket&lt;/span&gt; &lt;span class=&quot;sh_cbracket&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;{&lt;/span&gt;&lt;/li&gt;&lt;li style=&quot;margin: 0px; padding: 0px; border: 0px; border-image-source: initial; border-image-slice: initial; border-image-width: initial; border-image-outset: initial; border-image-repeat: initial; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline; background-color: rgb(51, 51, 51);&quot;&gt;&lt;span class=&quot;sh_usertype&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;ulong&lt;/span&gt;&lt;span class=&quot;sh_normal&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt; &lt;/span&gt;h&lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;;&lt;/span&gt;                        &lt;span class=&quot;sh_comment&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-family: inherit; vertical-align: baseline; color: rgb(124, 124, 124);&quot;&gt;/* 数字索引/hash值 */&lt;/span&gt;&lt;/li&gt;&lt;li style=&quot;margin: 0px; padding: 0px; border: 0px; border-image-source: initial; border-image-slice: initial; border-image-width: initial; border-image-outset: initial; border-image-repeat: initial; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline; background-color: rgb(51, 51, 51);&quot;&gt;&lt;span class=&quot;sh_usertype&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;uint&lt;/span&gt;&lt;span class=&quot;sh_normal&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt; &lt;/span&gt;nKeyLength&lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;;&lt;/span&gt;                &lt;span class=&quot;sh_comment&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-family: inherit; vertical-align: baseline; color: rgb(124, 124, 124);&quot;&gt;/* 字符索引的长度 */&lt;/span&gt;&lt;/li&gt;&lt;li style=&quot;margin: 0px; padding: 0px; border: 0px; border-image-source: initial; border-image-slice: initial; border-image-width: initial; border-image-outset: initial; border-image-repeat: initial; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;&lt;span class=&quot;sh_type&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; border-image-source: initial; border-image-slice: initial; border-image-width: initial; border-image-outset: initial; border-image-repeat: initial; font-family: inherit; vertical-align: baseline; color: rgb(255, 255, 182); background-color: rgb(51, 51, 51);&quot;&gt;void&lt;/span&gt;&lt;span style=&quot;background-color: rgb(51, 51, 51);&quot;&gt; &lt;/span&gt;&lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; border-image-source: initial; border-image-slice: initial; border-image-width: initial; border-image-outset: initial; border-image-repeat: initial; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline; background-color: rgb(51, 51, 51);&quot;&gt;*&lt;/span&gt;&lt;span style=&quot;background-color: rgb(51, 51, 51);&quot;&gt;pData&lt;/span&gt;&lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; border-image-source: initial; border-image-slice: initial; border-image-width: initial; border-image-outset: initial; border-image-repeat: initial; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline; background-color: rgb(51, 51, 51);&quot;&gt;;&lt;/span&gt;&lt;span style=&quot;background-color: rgb(51, 51, 51);&quot;&gt;                    &lt;/span&gt;&lt;span class=&quot;sh_comment&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; border-image-source: initial; border-image-slice: initial; border-image-width: initial; border-image-outset: initial; border-image-repeat: initial; font-family: inherit; vertical-align: baseline; color: rgb(124, 124, 124);&quot;&gt;&lt;span style=&quot;background-color: rgb(51, 51, 51);&quot;&gt;/* 数据，&lt;/span&gt;&lt;span style=&quot;background-color: rgb(0, 0, 153);&quot;&gt;指向zval结构&lt;/span&gt;&lt;span style=&quot;background-color: rgb(51, 51, 51);&quot;&gt; */&lt;/span&gt;&lt;/span&gt;&lt;/li&gt;&lt;li style=&quot;margin: 0px; padding: 0px; border: 0px; border-image-source: initial; border-image-slice: initial; border-image-width: initial; border-image-outset: initial; border-image-repeat: initial; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline; background-color: rgb(51, 51, 51);&quot;&gt;&lt;span class=&quot;sh_type&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-family: inherit; vertical-align: baseline; color: rgb(255, 255, 182);&quot;&gt;void&lt;/span&gt; &lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;*&lt;/span&gt;pDataPtr&lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;;&lt;/span&gt;                 &lt;span class=&quot;sh_comment&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-family: inherit; vertical-align: baseline; color: rgb(124, 124, 124);&quot;&gt;/* 数据指针 */&lt;/span&gt;&lt;/li&gt;&lt;li style=&quot;margin: 0px; padding: 0px; border: 0px; border-image-source: initial; border-image-slice: initial; border-image-width: initial; border-image-outset: initial; border-image-repeat: initial; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline; background-color: rgb(51, 51, 51);&quot;&gt;&lt;span class=&quot;sh_keyword&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-family: inherit; vertical-align: baseline; color: rgb(150, 203, 254);&quot;&gt;struct&lt;/span&gt;&lt;span class=&quot;sh_normal&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt; &lt;/span&gt;&lt;span class=&quot;sh_classname&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;bucket&lt;/span&gt; &lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;*&lt;/span&gt;pListNext&lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;;&lt;/span&gt;               &lt;span class=&quot;sh_comment&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-family: inherit; vertical-align: baseline; color: rgb(124, 124, 124);&quot;&gt;/* 下一个元素, 用于线性遍历 */&lt;/span&gt;&lt;/li&gt;&lt;li style=&quot;margin: 0px; padding: 0px; border: 0px; border-image-source: initial; border-image-slice: initial; border-image-width: initial; border-image-outset: initial; border-image-repeat: initial; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline; background-color: rgb(51, 51, 51);&quot;&gt;&lt;span class=&quot;sh_keyword&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-family: inherit; vertical-align: baseline; color: rgb(150, 203, 254);&quot;&gt;struct&lt;/span&gt;&lt;span class=&quot;sh_normal&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt; &lt;/span&gt;&lt;span class=&quot;sh_classname&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;bucket&lt;/span&gt; &lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;*&lt;/span&gt;pListLast&lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;;&lt;/span&gt;       &lt;span class=&quot;sh_comment&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-family: inherit; vertical-align: baseline; color: rgb(124, 124, 124);&quot;&gt;/* 上一个元素, 用于线性遍历 */&lt;/span&gt;&lt;/li&gt;&lt;li style=&quot;margin: 0px; padding: 0px; border: 0px; border-image-source: initial; border-image-slice: initial; border-image-width: initial; border-image-outset: initial; border-image-repeat: initial; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline; background-color: rgb(51, 51, 51);&quot;&gt;&lt;span class=&quot;sh_keyword&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-family: inherit; vertical-align: baseline; color: rgb(150, 203, 254);&quot;&gt;struct&lt;/span&gt;&lt;span class=&quot;sh_normal&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt; &lt;/span&gt;&lt;span class=&quot;sh_classname&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;bucket&lt;/span&gt; &lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;*&lt;/span&gt;pNext&lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;;&lt;/span&gt;                   &lt;span class=&quot;sh_comment&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-family: inherit; vertical-align: baseline; color: rgb(124, 124, 124);&quot;&gt;/* 处于同一个拉链中的下一个元素 */&lt;/span&gt;&lt;/li&gt;&lt;li style=&quot;margin: 0px; padding: 0px; border: 0px; border-image-source: initial; border-image-slice: initial; border-image-width: initial; border-image-outset: initial; border-image-repeat: initial; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline; background-color: rgb(51, 51, 51);&quot;&gt;&lt;span class=&quot;sh_keyword&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-family: inherit; vertical-align: baseline; color: rgb(150, 203, 254);&quot;&gt;struct&lt;/span&gt;&lt;span class=&quot;sh_normal&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt; &lt;/span&gt;&lt;span class=&quot;sh_classname&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;bucket&lt;/span&gt; &lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;*&lt;/span&gt;pLast&lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;;&lt;/span&gt;                   &lt;span class=&quot;sh_comment&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-family: inherit; vertical-align: baseline; color: rgb(124, 124, 124);&quot;&gt;/* 处于同一拉链中的上一个元素 */&lt;/span&gt;&lt;/li&gt;&lt;li style=&quot;margin: 0px; padding: 0px; border: 0px; border-image-source: initial; border-image-slice: initial; border-image-width: initial; border-image-outset: initial; border-image-repeat: initial; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline; background-color: rgb(51, 51, 51);&quot;&gt;&lt;span class=&quot;sh_type&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-family: inherit; vertical-align: baseline; color: rgb(255, 255, 182);&quot;&gt;char&lt;/span&gt; arKey&lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;[&lt;/span&gt;&lt;span class=&quot;sh_number&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-family: inherit; vertical-align: baseline; color: rgb(255, 115, 253);&quot;&gt;1&lt;/span&gt;&lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;];&lt;/span&gt; &lt;span class=&quot;sh_comment&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-family: inherit; vertical-align: baseline; color: rgb(124, 124, 124);&quot;&gt;/* 节省内存,方便初始化的技巧 */&lt;/span&gt;&lt;/li&gt;&lt;li style=&quot;margin: 0px; padding: 0px; border: 0px; border-image-source: initial; border-image-slice: initial; border-image-width: initial; border-image-outset: initial; border-image-repeat: initial; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline; background-color: rgb(51, 51, 51);&quot;&gt;&lt;span class=&quot;sh_cbracket&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;}&lt;/span&gt; Bucket&lt;span class=&quot;sh_symbol&quot; style=&quot;margin: 0px; padding: 0px; border: 0px; font-weight: inherit; font-style: inherit; font-family: inherit; vertical-align: baseline;&quot;&gt;;&lt;/span&gt;&lt;/li&gt;&lt;/ol&gt;

登入後複製

我想首先應該要大家了解PHP數組的內部實現結構……PHP的數組在PHP中, 數組是用一種HASH結構(HashTable)來實現的, PHP使用了一些機制, 使得可以在O(1)的時間複雜度下實現數組的增刪, 並同時支援線性遍歷和隨機訪問.之前的文章中也討論過, PHP的HASH演算法, 基於此, 我們做進一步的延伸.認識HashTable之前, 首先讓我們看看HashTable的結構定義, 我加了註釋方便大家理解:struct x { int a; // whatever members you want here. size_t size; int x[]; // no size, last member only }; 關於nApplyCount的意義, 我們可以透過一個例子來了解: rrreee這個字段就是為了防治循環引用導致的無限循環而設立的.查看上面的結構, 可以看出, 對於HashTable, 關鍵元素就是arBuckets了, 這個是實際存儲的容器, 讓我們來看看它的結構定義:rrreee我們注意到, 最後一個元素, 這個是flexible array技巧, 可以節省內存,和方便初始化的一種做法, 有興趣的朋友可以google flexible array.There are a couple of things it could refer to. The only place I've seen that precise 🎜wording used much is C99 though.🎜🎜A flexible array cally 00000m 00000us flexis to Hally A flexible 79be 0000us 45) 000us flexis for Sperion 909000) toa 45) toa flexis forion 905) toa 4 月）為 985) 000us 45) 000y 好的y fionyion sat forionion yionion for mally sionhem 0hus flex 9)'s 000us 4m. flex 98900) toa flexis 05 月 909000) toa 0 月）。 "struct hack". The basic idea is that you define a struct something like this:🎜rrreee🎜This is used primarily (or exclusively) with dynamic allocation. When you want to allocate an object of this an

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