note 25948 modified in function.array-search by vrana

If you'd rather search for values in an array that match a regular expression, this function will do the trick (note that it returns the first index matched, not the last key matched as array_search does): <?php /** * Searches for a regex match in every value of a one-dimensional array. * * @param string $pattern POSIX-extended regular expression to match. * @param array $haystack Array to search in. * @return mixed Index of the first match, or FALSE if no match is found. */ function array_ereg($pattern, $haystack) { for($i = 0; $i < count($haystack); $i++) { if (ereg($pattern, $haystack[$i])) return $i } return false; } ?> --was-- If you'd rather search for values in an array that match a regular expression, this function will do the trick (note that it returns the first index matched, not the last key matched as array_search does): /** * Searches for a regex match in every value of a one-dimensional array. * * @param string $pattern POSIX-extended regular expression to match. * @param array $haystack Array to search in. * @return mixed Index of the first match, or FALSE if no match is found. */ function array_ereg($pattern, $haystack) { for($i = 0; $i < count($haystack); $i++) { if (ereg($pattern, $haystack[$i])) return $i } return false; } http://php.net/manual/en/function.array-search.php