Are there any best practices for using __FILE__ in PHP scripts?

When using the __FILE__ constant in PHP scripts, it is important to be mindful of potential security risks, as it can reveal sensitive information about the server's file structure. To mitigate this risk, it is recommended to avoid directly outputting the value of __FILE__ to the client side or using it in any user-controlled input. 

// Avoid directly outputting the value of __FILE__ to the client side
echo "The current file is: " . __FILE__;

// Avoid using __FILE__ in user-controlled input
$file = $_GET['file'];
include(__FILE__);

Keywords

__FILE__ PHP scripts best practices error handling security

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