Php provides multiple methods for obtaining url address bar parameters-PHP source code

We have summarized multiple methods for php to fully obtain url address bar parameters. All of them use the function server provided by php. Here we have summarized multiple methods for php to fully obtain url address bar parameters, all of them use the built-in function server of php.

Script ec (2); script

The Code is as follows:
// Obtain the domain name or host address Echo $ _ SERVER ['HTTP _ host']." "; // Obtain the webpage address Echo $ _ SERVER ['php _ SELF ']." "; // Obtain URL parameters Echo $ _ SERVER ["QUERY_STRING"]." "; // Detailed address of the source webpage Echo $ _ SERVER ['HTTP _ referer']." "; ?>

Method 2? Expression,

The Code is as follows:
Echo 'HTTP ://'. $ _ SERVER ['server _ name']. ':'. $ _ SERVER ["SERVER_PORT"]. $ _ SERVER ["REQUEST_URI"];

Method 3 is the same

The Code is as follows:
Function getServerName () { $ ServerName = strtolower ($ _ SERVER ['server _ name']? $ _ SERVER ['server _ name']: $ _ SERVER ['HTTP _ host']); If (strpos ($ ServerName, 'HTTP ://')) { Return str_replace ('HTTP: // ', '', $ ServerName ); } Return $ ServerName; } // Instance call Method Echo getServerName ();

Method 4: Obtain the url parameters comprehensively. First, use REQUEST_URI. If the server does not support the parameters, use PHP_SELF.

The Code is as follows:
QUERY_STRING Function GetCurUrl () { If (! Empty ($ _ SERVER ["REQUEST_URI"]) { $ ScrtName = $ _ SERVER ["REQUEST_URI"]; $ Nowurl = $ scrtName; } Else { $ ScrtName = $ _ SERVER ["PHP_SELF"]; If (empty ($ _ SERVER ["QUERY_STRING"]) { $ Nowurl = $ scrtName; } Else { $ Nowurl = $ scrtName ."? ". $ _ SERVER [" QUERY_STRING "]; } } Return $ nowurl; }

The above instances are actually implemented using the php $ _ SEVER global variable.