PHP从链接获取元素

Question

I have below code:-

$link = 'http://www.domain.com/go.php?id=545&url=http://www.example.com/about

I want URL element that is - http://www.example.com/about

Answer 1

$link = 'http://www.domain.com/go.php?id=545&url=http://www.example.com/about';

$url = explode("&url=", $link)[1];
echo $url; //http://www.example.com/about