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HomeBackend DevelopmentPHP TutorialPHP使用strstr()函数获取指定字符串后所有字符的方法_php技巧

本文实例讲述了PHP使用strstr()函数获取指定字符串后所有字符的方法。分享给大家供大家参考,具体如下:

PHP的strstr()函数可搜索字符串在另一字符串中的第一次出现位置,并返回字符串的剩余部分。

strstr()函数定义如下:

strstr(string,search,before_search)

参数说明:

string 必需。规定被搜索的字符串。

search 
必需。规定所搜索的字符串。
如果此参数是数字,则搜索匹配此数字对应的 ASCII 值的字符。

before_search 
可选。默认值为 "false" 的布尔值。
如果设置为 "true",它将返回 search 参数第一次出现之前的字符串部分。

示例代码如下:

<&#63;php
 echo strstr("欢迎来到脚本之家","脚本");
 echo "<br/>";
 echo strstr("Welcome To www.jb51.net","jb51");
 echo "<br/>";
 echo strstr("123456789","5");
&#63;>

运行结果如下:

脚本之家
jb51.net
56789

补充:

在PHP5.3版本之后才可使用strstr()函数的第三个可选参数,如:

echo strstr("123456789","5",true);
//输出:1234

更多关于PHP字符串操作相关内容可查看本站专题:《php字符串(string)用法总结

希望本文所述对大家PHP程序设计有所帮助。

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