How can PHP developers ensure the security and stability of their code when migrating to newer PHP versions like PHP7?

PHP developers can ensure the security and stability of their code when migrating to newer PHP versions like PHP7 by following best practices such as updating deprecated functions, using secure coding practices, and testing thoroughly for compatibility issues. Additionally, utilizing tools like PHP Compatibility Checker can help identify potential problems before deployment. 

// Example code snippet demonstrating updating deprecated functions
// Before PHP 7
mysql_connect('localhost', 'username', 'password');

// After PHP 7
mysqli_connect('localhost', 'username', 'password');

Keywords

PHP7 security vulnerabilities backward compatibility deprecated functions code refactoring

Related Questions