Four Examples of How to Obtain PHP URL Parameters_PHP Tutorial

When the URL parameters are known, we can use $_GET to obtain the corresponding parameter information ($_GET['name']) according to our own situation; then, how to obtain the parameter information on the URL when the URL is unknown? Woolen cloth?

The first method is to use $_SERVER built-in array variable

The relatively primitive $_SERVER['QUERY_STRING'] is used to obtain URL parameters. Usually, this variable is used to return data similar to this: name=tank&sex=1
If you need to include the file name, you can use it. $_SERVER["REQUEST_URI"](return similar:/index.php?name=tank&sex=1)

The second method is to use the pathinfo built-in function

Copy code The code is as follows:

$test = pathinfo("http://localhost/index.php");
print_r($test);
/*
The result is as follows
Array
(
[dirname] = > http://localhost //The path of the URL
[basename] => index.php //Full file name
[extension] => php //File name suffix
[filename] => index //File name
)
*/
?>

The third method is to use the parse_url built-in function

Copy code The code is as follows:

$test = parse_url("http: //localhost/index.php?name=tank&sex=1#top");
print_r($test);
/*
The results are as follows
Array
(
[scheme ] => http //What protocol to use? [host] => localhost //Host name
[path] => /index.php //Path
[query] => name =tank&sex=1 // The parameters passed
[fragment] => top //The anchor point of the back root
)
*/
?>

The fourth method is to use the basename built-in function

Copy code The code is as follows:

$test = basename("http://localhost/index.php?name=tank&sex=1#top");
echo $test;
/*
The results are as follows
index.php?name= tank&sex=1#top
*/
?>

In addition, you can obtain the required value through regular matching. This method is more accurate and efficiency is not considered for the time being. . .

The following expands the regular processing method in practice:

Copy the code 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
)
)
*/
?>

The road is long...still needs to be explored...

http://www.bkjia.com/PHPjc/736837.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/736837.htmlTechArticleWhen the URL parameters are known, we can use $_GET to obtain the corresponding parameter information according to our own situation ( $_GET['name']); Then, how to get the parameter information on the URL under unknown circumstances...