PHP 判断字符串 是否 包含另一个字符串
1.stristr 忽略大小写
$string = 'Hello World!'; if(stristr($string, 'earth') === FALSE) { echo '"earth" not found in string<br />'; }// 输出: "earth" not found in string echo stristr($string, 'lo'); //输出 lo World!
1.stristr 忽略大小写
$string = 'Hello World!'; if(stristr($string, 'earth') === FALSE) { echo '"earth" not found in string<br />'; }// 输出: "earth" not found in string echo stristr($string, 'lo'); //输出 lo World!