check if contains string php code example

Example 1: php string contains

$mystring = 'abc';
$findme   = 'a';
$pos = strpos($mystring, $findme);

Example 2: php check if string contains

// returns true if $needle is a substring of $haystack
function contains($haystack, $needle){
    return strpos($haystack, $needle) !== false;
}