php获取最后执行sql语句

<?php
try {
    $pdo = new PDO('mysql:host=localhost;dbname=test', $user, $pass);
    $pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);

    $stmt = $pdo->prepare("SELECT * FROM users WHERE id = :id");
    $stmt->bindParam(':id', $id);
    $id = 1;
    $stmt->execute();

    // 获取最后执行的SQL语句
    $last_sql = $stmt->queryString;
    echo "Last executed SQL: " . $last_sql;
} catch (PDOException $e) {
    echo "Error: " . $e->getMessage();
}
?>

<?php
$mysqli = new mysqli("localhost", "user", "password", "database");

if ($mysqli->connect_errno) {
    echo "Failed to connect to MySQL: " . $mysqli->connect_error;
    exit();
}

$sql = "SELECT * FROM users WHERE id = ?";
$stmt = $mysqli->prepare($sql);
$stmt->bind_param("i", $id);
$id = 1;
$stmt->execute();

// 获取最后执行的SQL语句
$last_sql = $stmt->get_last_sql();
echo "Last executed SQL: " . $last_sql;

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