phpcms 循环数组

<?php
// 假设这是从数据库查询得到的数据
$data = [
    ['id' => 1, 'title' => '文章1'],
    ['id' => 2, 'title' => '文章2'],
    ['id' => 3, 'title' => '文章3']
];

// 循环遍历数组并输出每个元素的标题
foreach ($data as $item) {
    echo $item['title'] . '<br>';
}
?>

foreach ($data as $item) {
    if (isset($item['title'])) {
        echo $item['title'] . '<br>';
    }
}

$multiData = [
    ['id' => 1, 'items' => ['a', 'b', 'c']],
    ['id' => 2, 'items' => ['d', 'e', 'f']]
];

foreach ($multiData as $group) {
    echo 'Group ID: ' . $group['id'] . '<br>';
    foreach ($group['items'] as $item) {
        echo 'Item: ' . $item . '<br>';
    }
}