What are best practices for identifying and updating outdated PHP scripts in a website?

Identifying and updating outdated PHP scripts in a website is crucial for security and performance reasons. To tackle this, regularly audit your website for deprecated functions or outdated PHP versions. Once identified, update the scripts to use current PHP best practices and secure coding standards. 

// Example of updating outdated PHP script
// Before update
$old_variable = $_GET['user_input'];

// After update
$new_variable = filter_input(INPUT_GET, 'user_input', FILTER_SANITIZE_STRING);

Keywords

PHP scripts website maintenance version control security vulnerabilities code refactoring

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