Bagaimana untuk Mendapatkan Nama Lajur Jadual MySQL menggunakan PHP?

$stmt = $db->prepare("DESCRIBE my_table");
$stmt->execute();
$result = $stmt->fetchAll(PDO::FETCH_ASSOC);

foreach ($result as $row) {
    echo "<p>" . $row['Field'] . "</p>";
}

$stmt = $db->prepare("SELECT COLUMN_NAME
FROM INFORMATION_SCHEMA.COLUMNS
WHERE TABLE_SCHEMA = 'my_database' AND TABLE_NAME = 'my_table'");
$stmt->execute();
$result = $stmt->fetchAll(PDO::FETCH_ASSOC);

foreach ($result as $row) {
    echo "<p>" . $row['COLUMN_NAME'] . "</p>";
}

$stmt = $db->prepare("SHOW COLUMNS FROM my_table");
$stmt->execute();
$result = $stmt->fetchAll(PDO::FETCH_ASSOC);

foreach ($result as $row) {
    echo "<p>" . $row['Field'] . "</p>";
}

$stmt = $db->prepare("SELECT group_concat(COLUMN_NAME)
FROM INFORMATION_SCHEMA.COLUMNS
WHERE TABLE_SCHEMA = 'my_database' AND TABLE_NAME = 'my_table'");
$stmt->execute();
$columnNames = $stmt->fetchColumn();

echo "<p>" . $columnNames . "</p>";