[Organize] get the URL of the current page

  JS implementation:

Sets or gets the file name or path specified by the object. Alert (window.location.pathname) Sets or gets the entire URL as a string. alert (window.location.href); Sets or gets the port number associated with the URL. Alert (window.location.port) Sets or gets the protocol portion of the URL. Alert (window.location.protocol) Sets or gets the fragment behind the pound sign "#" in the href attribute. Alert (Window.location.hash) Sets or gets the hostname and port numbers for the location or URL. Alert (window.location.host) Sets or gets the portion of the HREF attribute that follows the question mark. Alert (window.location.search) Gets the value of the variable (intercept the part after the equals sign)varURL =Window.location.search;//alert (url.length);//Alert (url.lastindexof (' = '));varloc = url.substring (url.lastindexof (' = ') +1, url.length);

Get the address of the top-level window
Top.location.href

Gets the address of the current window
This.location.href

PHP Implementation:

#Test URL: http://localhost/blog/testurl.php?id=5//get the domain name or host addressEcho $_server[' Http_host ']. " <br> ";#localhost//get web addressEcho $_server[' Php_self ']. " <br> ";#/blog/testurl.php//Get URL parametersEcho $_server["Query_string"]. " <br> ";#id=5//getting a user agentEcho $_server[' Http_referer ']. " <br> "; //get the full URLEcho' http://'.$_server[' Http_host '].$_server[' Request_uri '];Echo' http://'.$_server[' Http_host '].$_server[' php_self ']. '? '.$_server[' Query_string '];#http://localhost/blog/testurl.php?id=5//full URL with port numberEcho' http://'.$_server[' server_name ']. ': '.$_server["Server_port"].$_server["Request_uri"]; #http://localhost:80/blog/testurl.php?id=5//only take path$url= ' http://'.$_server[' server_name '].$_server["Request_uri"]; Echo dirname($url);#Http://localhost/blog

Reference Links:

Http://www.cnblogs.com/A-Song/archive/2011/12/14/2288215.html

Http://www.cnblogs.com/glj1203/archive/2011/04/07/2008054.html

[organize] to get the URL of the current page