How can the use of deprecated MySQL functions in PHP code be replaced with modern equivalents like mysqli or PDO?

Deprecated MySQL functions in PHP code can be replaced with modern equivalents like mysqli or PDO to ensure better security, performance, and compatibility with newer versions of PHP and MySQL. To replace deprecated MySQL functions, you can update your code to use either the mysqli extension or PDO (PHP Data Objects) for database interactions. This involves updating function calls, connection handling, and query execution to use the new APIs provided by mysqli or PDO. 

// Deprecated MySQL function
$link = mysql_connect('localhost', 'username', 'password');

// Replace with mysqli
$mysqli = new mysqli('localhost', 'username', 'password', 'database_name');

// Deprecated MySQL function
$result = mysql_query('SELECT * FROM table');

// Replace with mysqli
$result = $mysqli->query('SELECT * FROM table');

Keywords

deprecated MySQL functions PHP code mysqli PDO modern equivalents

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