php curl获取302跳转后的链接

单个获取

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,CURLOPT_REFERER,CURLOPT_SSL_VERIFYPEER,false);

curl_setopt($ch,CURLOPT_SSL_VERIFYHOST,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');

$content = curl_exec($ch);

$redirect_url = curl_getinfo($ch,CURLINFO_EFFECTIVE_URL);

$redirect_url = ($redirect_url == $url) ? $url : $redirect_url;

curl_close($ch);

return $redirect_url;

}

curl模拟多线程同时获取多个

function get_redirect_url($links) {

//curl模拟多线程

$mh = curl_multi_init();

foreach ($links as $i => $link) {

$conn[$i] = curl_init($link);

curl_setopt($conn[$i],1);

curl_setopt($conn[$i],$link);

curl_setopt($conn[$i],CURLOPT_TIMEOUT,60); //超时时间

curl_setopt($conn[$i],false);

curl_setopt($conn[$i],'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML,like Gecko) Chrome/71.0.3551.3 Safari/537.36');

curl_multi_add_handle($mh,$conn[$i]);

}

$active = null;

do {

curl_multi_exec($mh,$running);

curl_multi_select($mh);

} while ($running > 0);

$result = [];

//获取page内容

foreach ($links as $i => $link) {

$redirect_url = curl_getinfo($conn[$i],CURLINFO_EFFECTIVE_URL);

curl_close($conn[$i]);

$result[$i] = ($redirect_url == $link) ? $link : $redirect_url;

}

return $result;

}

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