How to get a URL after a jump address

Source: Internet
Author: User
Tags what php
How do I get the address after a URL jump?
such as: http://s.click.taobao.com/t?e=m%3D2%26s% 3dyijz231k878cqipkwqzepoeedryvva64k7vc7tfgwifradhuf14fmxnqxxouzufrlovu% 2fcelqov6keozrbczxkkqiyb6a3ytqfkrddwqyqpewtsg41p5gzrwh38h64hnomfkdjrs%2bhu%3d&unid=41tr3
When this address is opened, the real address shown on the browser is
http://re.taobao.com/eauction?e=%2BxVQEg64bTgjmraEDZVrLivdVbwI2XBiHXoLCLLzzT6LltG5xFicOcdl4% 2fc0gneldpiwxrc30rgoiisympl%2fi6dkxt%2bbrdgatv8qlbynbnosncusc%2fywfnn0cmjbikmk&ptype=100010&unid=41tr3 &from=basic&ali_trackid=2:mm_16674950_0_0,41tr3:1386652869_6k2_781266833
How to get this real address in PHP (simulated access can also be obtained)


Get to the next step and die.








------Solution--------------------
Don't bother about what PHP can't do.
The efforts of e-commerce to protect their data are not in vain.
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