用PHP分割磁铁链接

我需要一个磁铁链接中的两个项目:

magnet:?xt=urn:btih:0eb69459a28b08400c5f05bad3e63235b9853021&dn=Splinter.Cell.Blacklist-RELOADED&tr=udp%3A%2F%2Ftracker.com%3A80&tr=udp%3A%2F%2Ftracker.publicbt.com%3A80&tr=udp%3A%2F%2Ftracker.istole.it%3A6969&tr=udp%3A%2F%2Ftracker.ccc.de%3A80&tr=udp%3A%2F%2Fopen.demonii.com%3A1337

价值btih:

0eb69459a28b08400c5f05bad3e63235b9853021

和第一个的价值udp:

udp://tracker.com:80

如何用PHP做到这一点？

由于parse_url()在这种情况下无法帮助你必须使用正则表达式来解析字符串,然后进一步操作字符串以获取跟踪器.所以类似于:

.*?)&dn=(?.*?)&tr=(?.*?)$#', $string, $magnet_link);

//0eb69459a28b08400c5f05bad3e63235b9853021
echo $magnet_link['hash'];

//Splinter.Cell.Blacklist-RELOADED
echo $magnet_link['filename'];

/*[trackers] => Array
(
    [0] => udp://tracker.com:80
    [1] => udp://tracker.publicbt.com:80
    [2] => udp://tracker.istole.it:6969
    [3] => udp://tracker.ccc.de:80
    [4] => udp://open.demonii.com:1337
)
*/
$magnet_link['trackers'] = explode('&', urldecode(str_replace('tr=','', $magnet_link['trackers'])));

//so to get first tracker
$magnet_link['trackers'][0];
?>