PHP 实现“万能”的短网址还原
curl_getinfo
来取得 header 中的重定向地址,也就是短网址对应的原始网址(嗯,原理就是这么简单……/*** * 万能短网址还原函数 * @param $shortUrl 短网址 * @return 原始网址 | 空(还原失败或非短网址) */ function restoreUrl($shortUrl) { $curl = curl_init(); curl_setopt($curl, CURLOPT_URL, $shortUrl); curl_setopt($curl, CURLOPT_RETURNTRANSFER, true); curl_setopt($curl, CURLOPT_USERAGENT, 'Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:70.0) Gecko/20100101 Firefox/70.0'); curl_setopt($curl, CURLOPT_HEADER, true); curl_setopt($curl, CURLOPT_NOBODY, false); curl_setopt($curl, CURLOPT_TIMEOUT, 15); curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false); curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, 2); curl_setopt($curl, CURLOPT_ENCODING, 'gzip'); $data = curl_exec($curl); $curlInfo = curl_getinfo($curl); curl_close($curl); if($curlInfo['http_code'] == 301 || $curlInfo['http_code'] == 302) { return $curlInfo['redirect_url']; } return ''; }
使用方法:
$shortUrl = 'https://url.cn/54VbB8h'; // 要还原的短网址 $orinalUrl = restoreUrl($shortUrl); if($orinalUrl) { echo "短网址 {$shortUrl} 的还原结果:{$orinalUrl}"; } else { echo "短网址还原失败"; }经过实测,该函数可以顺利实现下列短网址的还原:
https://url.cn
http://t.cn
http://uee.me
http://rrd.me
https://sohu.gg
https://dwz.cn
http://1t.click
http://dwz.win
http://qq.cn.hn
http://tb.cn.hn
http://jd.cn.hn
http://tinyurl.com
http://u6.gg
http://c7.gg
http://985.so
http://new.3qtt.cn
http://dwz1.cc
https://ml.mk
https://ml.mk
http://suo.im
https://suo.dog
http://sina.lt
http://mrw.so
不过,诸如 https://m.tb.cn/h.ew5NAEA 这种在前端使用 js 跳转的短网址就无能为力了~_~
2020-05-06 22:27