- mb_stristr: documentation ( source)
- mb_strstr: documentation ( source)
<?php
$haystack = 'abcdefg';
$needle = 'cd';
echo mb_strstr($haystack,$needle,true),"\n";
echo mb_strstr($haystack,$needle,false),"\n";
echo mb_stristr($haystack,$needle,true),"\n";
echo mb_stristr($haystack,$needle,false),"\n";