Is it sufficient to rely on server-side security measures to protect PHP code from unauthorized access and modifications?

It is not sufficient to rely solely on server-side security measures to protect PHP code from unauthorized access and modifications. Implementing additional security measures within the PHP code itself, such as input validation, output sanitization, and access control mechanisms, is crucial to prevent unauthorized access and modifications. 

// Example of implementing access control within PHP code
session_start();

if(!isset($_SESSION['authenticated']) || $_SESSION['authenticated'] !== true) {
    header('Location: /login.php');
    exit();
}

// Proceed with executing the protected code

Keywords

server-side security PHP code protection unauthorized access modifications security measures

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