如何运用PHP stristr()函数进行字符查找
我们通过对
PHP stristr()函数--查找字符串在另一个字符串中第一次出现的位置。
定义和用法PHP stristr()函数查找字符串在另一个字符串中第一次出现的位置。如果成功,则返回字符串的其余部分(从匹配点)。如果没有找到该字符串,则返回 false。
语法stristr(string,search)
参数与描述
string 必需。规定被搜索的字符串。
find 必需。规定要查找的字符。如果该参数是数字,则搜索匹配该数字对应的 ASCII 值的字符。
提示和注释注释:该函数是二进制安全的。
注释:该函数对大小写不敏感。如需对大小写敏感的搜索,请使用strstr()。
PHP stristr()函数例子 1
<ol class="dp-xml"> <li class="alt"><span><span class="tag"><span> ?php </span></span></span></li> <li><span>echo stristr("Hello world!","WORLD"); </span></li> <li class="alt"><span> </span></li> <li> <span class="tag">?></span><span> </span> </li> </ol>
输出:
world!
PHP stristr()函数例子 2
<ol class="dp-xml"> <li class="alt"><span><span class="tag"><span> ?php </span></span></span></li> <li><span>echo stristr("Hello world!",111); </span></li> <li class="alt"> <span class="tag">?></span><span> </span> </li> <li><span> </span></li> </ol>
输出:
o world!

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