PHP-如何检查字符串是否包含子字符串PHP

Posted 2021-02-24

Once in a while we need to check whether a string contains substring, some other string or characters or a value. Checking for existence of a string (or substring) inside another string is easier than it might seem. The following article describes how to check for whether a string contains string in php, or simply said how to find string within string in PHP.

$intPos = strpos($strHaystack,$strNeedle);
 
if( $intPos === false ) {
     // string strNeedle NOT found in strHaystack
} else {
     // string strNeedle found in strHaystack
}