- substr: documentation ( source)
- stristr: documentation ( source)
<?php
$s = "ab";
$s1 = "cAbfAbe";
$s2 = $s1;
do {
$s2 = stristr($s2,$s);
echo "$s2\n";
$s3 = substr($s2,0,count($s)+1);
$s2 = substr($s2,count($s));
//echo "$s2\n";
} while ($s2 != false);