What is the difference between $_SERVER['PHP_SELF'] and __FILE__ in PHP?

$_SERVER['PHP_SELF'] returns the filename of the currently executing script, including any path information provided by the client. On the other hand, __FILE__ returns the full path and filename of the file it's used in. If you want to get the filename of the current script, it's recommended to use $_SERVER['PHP_SELF'] as it provides the desired information without revealing the server's file system structure. 

$currentScript = $_SERVER['PHP_SELF'];
echo "The current script is: $currentScript";

Keywords

$_SERVER['PHP_SELF'] __FILE__ difference PHP server variables

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