How can developers ensure security when incorporating external modules into a PHP application?

Developers can ensure security when incorporating external modules into a PHP application by carefully reviewing the source code of the module for any potential vulnerabilities, keeping the module updated with the latest security patches, and sanitizing input data to prevent SQL injection and cross-site scripting attacks. 

// Example of sanitizing input data in PHP
$input_data = $_POST['user_input'];
$clean_data = htmlspecialchars(strip_tags($input_data));

Keywords

PHP security external modules validation input filtering

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