What are the advantages of using mysqli_* or PDO with Prepared Statements over mysql_* commands in PHP?

Using mysqli_* or PDO with Prepared Statements is advantageous over mysql_* commands in PHP because it helps prevent SQL injection attacks by separating SQL logic from user input. Prepared Statements also improve performance by allowing queries to be prepared once and executed multiple times with different parameters. Additionally, these methods provide a more secure and flexible way to interact with databases compared to the deprecated mysql_* functions. 

// Using mysqli with Prepared Statements
$mysqli = new mysqli("localhost", "username", "password", "database");

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

$stmt = $mysqli->prepare("SELECT * FROM users WHERE username = ?");
$stmt->bind_param("s", $username);

$username = "example_user";
$stmt->execute();

$result = $stmt->get_result();
while ($row = $result->fetch_assoc()) {
    // Process results
}

$stmt->close();
$mysqli->close();

Keywords

mysqli PDO Prepared Statements mysql PHP

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