PHP Gets the current page complete URL method _javascript Tips

First, use JavaScript to achieve:

top.location.hrefAddress of the top-level window

this.location.hrefThe address of the current window

Second, the use of PHP to achieve

Http://localhost/PHP/XX.php?id=5

Get domain name or host address

echo $_server[' Http_host ']; #localhost

Get Web page address

echo $_server[' php_self ']; #/php/xx.php

Get URL parameters

echo $_server["Query_string"]; #id =5

Get user Agent

Get the full URL

echo ' http://'. $_server[' http_host '].$_server[' Request_uri ';
echo ' http://' $_server[' http_host '].$_server[' php_self '. $_server[' query_string '];
#http://localhost/php/xx.php?id=5

Full URL that contains the port number

echo ' http://'. $_server[' server_name ']. ': $_server[' server_port '].$_server[' Request_uri ';
#http://localhost:80/php/xx.php?id=5

Fetch path only

$url = ' http://'. $_server[' server_name '].$_server[' Request_uri ']; 
echo dirname ($url);
#http://localhost/php

Summarize

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