php check if string contains characters code example

Example 1: php find if string contains

if (strpos($string, 'substring') !== false) {
	// do stuff 
}

Example 2: php string contains

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

Example 3: if text contains word then in php

if (strpos($haystack,$needle) !== false) {
    echo "$haystack contains $needle";
}