How can PHP developers transition from using the deprecated mysql_ extension to more modern alternatives like MySQLi or PDO_MySQL?

To transition from using the deprecated mysql_ extension to more modern alternatives like MySQLi or PDO_MySQL, PHP developers can update their code to use either MySQLi or PDO functions for connecting to and querying the database. This involves replacing all instances of mysql_ functions with their respective MySQLi or PDO equivalents. This ensures compatibility with newer PHP versions and improves security by using prepared statements to prevent SQL injection attacks. 

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

if ($mysqli->connect_error) {
    die('Connect Error (' . $mysqli->connect_errno . ') ' . $mysqli->connect_error);
}

$result = $mysqli->query("SELECT * FROM table");

while ($row = $result->fetch_assoc()) {
    // Process the data
}

$mysqli->close();

Keywords

PHP mysql_ extension MySQLi PDO_MySQL deprecated

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