爬取有重定向的链接时，获取url不正确 about beanbun HOT 1 CLOSED

通过curl再次请求解决了，不知道默认有什么方法可以做到
function get_redirect_url($url) { $ch = curl_init($url); curl_setopt($ch, CURLOPT_URL, $url); curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1); curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); curl_setopt($ch, CURLOPT_REFERER, $url); curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false); curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false); curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/64.0.3282.119 Safari/537.36'); curl_setopt($ch, CURLOPT_NOBODY, 1); curl_exec($ch); $redirect_url = curl_getinfo($ch, CURLINFO_EFFECTIVE_URL); curl_close($ch); return $redirect_url; }

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