php 使用curl获取采集页的302跳转地址

    function get302($url)
    {
        $ch = curl_init();
        curl_setopt($ch,  CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($ch, CURLOPT_URL,  $url);
        curl_setopt($ch, CURLOPT_POST, 1);
        curl_setopt($ch,  CURLOPT_FOLLOWLOCATION, 1);
        $data = curl_exec($ch);
        $Headers = curl_getinfo($ch);
        curl_close($ch);
        if ($data != $Headers)
            return  $Headers["url"];
        else
            return false;
    }

来源：oschina

链接：https://my.oschina.net/u/4385953/blog/4328422