What are some potential issues with using the mysql_ extension in PHP and what alternative extensions should be considered?

Using the mysql_ extension in PHP is deprecated and no longer supported in newer versions of PHP. This can lead to security vulnerabilities and compatibility issues with newer MySQL versions. It is recommended to use either the mysqli or PDO extension for interacting with MySQL databases in PHP. 

// Using mysqli extension instead of mysql_

$mysqli = new mysqli('localhost', 'username', 'password', 'database');

if ($mysqli->connect_error) {
    die('Connection failed: ' . $mysqli->connect_error);
}

// Perform database operations using $mysqli object

Keywords

mysql_ extension PHP alternative extensions mysqli PDO

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