给定一个网址:
scrape.php?u=http%3A%2F%2Fwww.coldwellbanker.com%2Fagent%3 ...等
$url = $_GET['u'];
$url2 = 'http://www.coldwellbanker.com/agent?action=detail&agentId=121759&mode=detail';
var_dump($url==$url2);
//This prints out bool(false)
为什么 $_GET 参数与单引号中的等效字符串不同?