PHP Get current file name and url

There are many ways to get the current page url or the name of the current file.

How to get the current URL?
To get the current url ( relative to the document root), you may use this script:

<?php
$URL = $_SERVER['PHP_SELF'];
echo $URL;
?>

If your page is www.domain.com/folder1/page.php, this code will display: "/folder1/page.php" .
But if your page is www.domain.com/folder1/page.php?a=25&b=12 , it will display only: "/folder1/page.php" , $_SERVER['PHP_SELF'] don't include the query string .

If you want to include the query string, use this script:

<?php
$URL = $_SERVER['REQUEST_URI'];
echo $URL;
?>

For the page www.domain.com/folder1/page.php?a=25&b=12, this will display /folder1/page.php?a=25&b=12

How to get the file path?
To get the path of the executing file in the server, you may use:

<?php
$path = $_SERVER['SCRIPT_FILENAME'];
echo $path;
?>

display:

C:\www\folder\page.php
or
/var/www/htdocs/test/page.php

How to get the current filename ?
To get the current file name, we will use the same code to get the url:

<?php

$url = $_SERVER["SCRIPT_NAME"];
$break = Explode('/', $url);
$file = $break[count($break) - 1];

echo $file;

?>