PHP check if url parameter exists
Use isset() $matchFound = (isset($_GET[“id”]) && trim($_GET[“id”]) == ‘link1′); $slide = $matchFound ? trim($_GET[“id”]) : ”; EDIT: This is added for the completeness sake. $_GET in php is a reserved variable that is an associative array. Hence, you could also make use of ‘array_key_exists(mixed $key, array $array)’. It will return a boolean that the key … Read more