如何在php中自定义url_encode函数

??PHP??????url_encode??,?????????:

function custom_url_encode($string) {
    $entities = array('!', '*', ''', '(', ')', ';', ':', '@', '&', '=', '+', '$', ',', '/', '?', '%', '#', '[', ']');
    $replacements = array('!', '*', "'", "(", ")", ";", ":", "@", "&", "=", "+", "$", ",", "/", "?", "%", "#", "[", "]");
    return str_replace($entities, $replacements, urlencode($string));
}

// ????
$url = "https://example.com/test?query=????¶m=value";
$encoded_url = custom_url_encode($url);
echo $encoded_url;

??????custom_url_encode??????urlencode?????????????,????str_replace????????????????,?????PHP?????????url_encode????