Are there any potential pitfalls when using deprecated MySQL functions in PHP and how can they be avoided?

When using deprecated MySQL functions in PHP, potential pitfalls include compatibility issues with newer versions of PHP and MySQL, security vulnerabilities, and decreased performance. To avoid these pitfalls, it is recommended to switch to MySQLi or PDO for database operations, as they provide better security, performance, and compatibility with modern PHP versions. 

// Deprecated MySQL function
$connection = mysql_connect('localhost', 'username', 'password');
mysql_select_db('database_name', $connection);

// Updated code using MySQLi
$connection = mysqli_connect('localhost', 'username', 'password', 'database_name');
if (!$connection) {
    die('Connection failed: ' . mysqli_connect_error());
}

Keywords

Deprecated MySQL functions PHP pitfalls avoidance

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