PHP爬虫获取Bilibili视频封面图

function curl($url)

{

    $ch = curl_init();

    curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 5000);

    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);

    curl_setopt($ch, CURLOPT_HTTPHEADER, array('User-Agent: Mozilla/5.0 (iPhone; CPU iPhone OS 8_0 like Mac OS X) AppleWebKit/600.1.3 (KHTML, like Gecko) Version/8.0 Mobile/12A4345d Safari/600.1.4'));

    curl_setopt($ch, CURLOPT_URL, $url);

    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);

    curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);

    curl_setopt($ch, CURLOPT_REDIR_PROTOCOLS, -1);

    $cOntents= curl_exec($ch);

    curl_close($ch);

    return $contents;

}



function getBilibiliAVCover($avNum)

{

    $cOntents= curl('https://m.bilibili.com/video/' . $avNum . '.html');

    preg_match("~"pic":"(.*?)"~", $contents, $matches);

    if (count($matches) == 0) {

        echo '没有找到相应的图片，请换个 av 号试一下。';

        exit;

    }

    $img = file_get_contents($matches[1]);

    file_put_contents('default.png', $img);

    echo '';

}



getBilibiliAVCover('av417622790');

exit;



?>