What are the advantages of using mysqli_* or PDO functions over deprecated mysql_* functions in PHP for database queries?

The advantages of using mysqli_* or PDO functions over deprecated mysql_* functions in PHP for database queries include improved security, support for prepared statements to prevent SQL injection attacks, and better error handling capabilities. 

// Using mysqli_* functions
$mysqli = new mysqli("localhost", "username", "password", "database");

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

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

if ($result->num_rows > 0) {
    while ($row = $result->fetch_assoc()) {
        // Process each row
    }
} else {
    echo "0 results";
}

$mysqli->close();

Keywords

mysqli PDO mysql deprecated database queries

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