note 72466 deleted from function.strpos by levim

Note Submitter: jamie at jamiechong dot ca ---- Try this function to find the first position of needle before a given offset. For example: <?php $s = "This is a test a is This"; $offset = strpos($s, "test"); strnpos($s, "is", $offset); // returns 17 strnpos($s, "is", -$offset); // returns 5 // Works just like strpos if $offset is positive. // If $offset is negative, return the first position of needle // before before $offset. function strnpos($haystack, $needle, $offset=0) { if ($offset>=0) $result=strpos($haystack, $needle, $offset); else { $offset=strlen($haystack)+$offset; $haystack=strrev($haystack); $needle=strrev($needle); $result=strpos($haystack, $needle, $offset); if ($result!==false) { $result+=strlen($needle); $result=strlen($haystack)-$result; } } return $result; } ?>