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如何判断数组的值是否按顺序排序?

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Release: 2016-06-06 20:28:33
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<code>$array = array(
    '1'=>1,
    '2'=>2,
    '3'=>3
);</code>
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这样就是顺序排序

<code>$array = array(
    '1'=>1,
    '2'=>3,
    '3'=>2
);</code>
Copy after login
Copy after login

这样是错误的顺序排序

如何判断?

回复内容:

<code>$array = array(
    '1'=>1,
    '2'=>2,
    '3'=>3
);</code>
Copy after login
Copy after login

这样就是顺序排序

<code>$array = array(
    '1'=>1,
    '2'=>3,
    '3'=>2
);</code>
Copy after login
Copy after login

这样是错误的顺序排序

如何判断?

我不是很确定题主的问题。按照我的理解,题主想问的是数组是否是有序的。
如果是这样的话,把数组遍历一遍就行了。如果遇上某个元素比它之后的元素小,说明是无序的。

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