Four methods for obtaining PHPURL parameters _ php instance-php Tutorial

This article mainly introduces four methods for obtaining PHPURL parameters and four methods for parsing phpurl parameters. if you need a friend, refer to the following when URL parameters are known, we can use $ _ GET to obtain the corresponding parameter information ($ _ GET ['name']) According to our own situation; that, how can I obtain the parameter information on the URL in an unknown situation?

First, use the $ _ SERVER built-in array variable

Obtain the URL parameter from the original $ _ SERVER ['query _ string']. Generally, this variable returns data similar to this: name = tank & sex = 1.
To include a file name, you can use $ _ SERVER ["REQUEST_URI"] (The Returned result is similar to:/index. php? Name = tank & sex = 1)

Second, use pathinfo built-in functions

The code is as follows:

$ Test = pathinfo ("http: // localhost/index. php ");
Print_r ($ test );
/*
The result is as follows:
Array
(
[Dirname] => http: // localhost // url path
[Basename] => index. php // Complete file name
[Extension] => php // file name suffix
[Filename] => index // file name
)
*/
?>

Third, use the parse_url built-in function

The code is as follows:

$ Test = parse_url ("http: // localhost/index. php? Name = tank & sex = 1 # top ");
Print_r ($ test );
/*
The result is as follows:
Array
(
[Scheme] => http // what protocol is used
[Host] => localhost // host name
[Path] =>/index. php // path
[Query] => name = tank & sex = 1 // The passed parameter
[Fragment] => top // The anchor behind the root
)
*/
?>

Fourth, use the built-in functions of basename

The code is as follows:

$ Test = basename ("http: // localhost/index. php? Name = tank & sex = 1 # top ");
Echo $ test;
/*
The result is as follows:
Index. php? Name = tank & sex = 1 # top
*/
?>

In addition, you can obtain the required value through regular expression matching. This method is more accurate, and the efficiency is not considered for the moment...
Below we will expand the regular expression processing method in practice:

The code is as follows:

Preg_match_all ("/(\ w + = \ w +) (# \ w + )? /I "," http: // localhost/index. php? Name = tank & sex = 1 # top ", $ match );
Print_r ($ match );
/*
The result is as follows:
Array
(
[0] => Array
(
[0] => name = tank
[1] => sex = 1 # top
)
[1] => Array
(
[0] => name = tank
[1] => sex = 1
)
[2] => Array
(
[0] =>
[1] => # top
)
)
*/
?>

Long journey... waiting to continue mining...