Online PHP editor | output for j3g4e

<?php var_dump(to_int(1..5)); var_dump(to_int(1...)); /** * Returns the value as an int, or false if it cannot be safely cast * @param mixed $val * @return int */ function to_int($val) { switch (gettype($val)) { case "integer": return $val; case "double": if ($val === (float) (int) $val) { return (int) $val; } else { return false; } case "string": $val = trim($val, " \t\n\r\v\f"); // trim whitespace $float = filter_var($val, FILTER_VALIDATE_FLOAT); return ($float !== false && (int) $val == $float) ? (int) $val : false; default: return false; } }