What are the potential pitfalls of directly editing variables within a PHP file, and how can these be avoided?

Directly editing variables within a PHP file can lead to unintended consequences, such as introducing bugs or security vulnerabilities. To avoid this, it is recommended to use a separate configuration file to store variables and include it in your PHP files. 

// config.php
<?php
$variable = "value";
?>

// index.php
<?php
include 'config.php';

echo $variable;
?>

Keywords

variable editing security vulnerability injection attacks data validation input sanitization

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