How can PHP developers prevent unauthorized access to their code?

To prevent unauthorized access to PHP code, developers can use techniques such as setting proper file permissions, implementing secure authentication mechanisms, and using encryption for sensitive data. Additionally, developers should avoid storing sensitive information in plain text and regularly update their code to patch any security vulnerabilities. 

<?php
// Example of restricting access to PHP code using .htaccess file
// Place this in the root directory of your project

<FilesMatch "\.(php)$">
    Order allow,deny
    Deny from all
</FilesMatch>
?>

Keywords

authentication authorization access control PHP security code obfuscation

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