What is the significance of the error message "Notice: Undefined variable: PHP_SELF" in PHP scripts?

The error message "Notice: Undefined variable: PHP_SELF" in PHP scripts indicates that the PHP_SELF variable is not defined or initialized in the script. This variable is used to refer to the current script file, and its absence can cause issues with form submissions and other functionalities that rely on it. To solve this issue, you can simply initialize the PHP_SELF variable using $_SERVER['PHP_SELF']. 

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

Keywords

PHP_SELF Undefined variable Error message PHP scripts Significance

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