php二级分类读出二维数组

$array = [
    ['name' => '分类1', 'items' => ['项目1', '项目2']],
    ['name' => '分类2', 'items' => ['项目3', '项目4']]
];

<?php
$array = [
    ['name' => '分类1', 'items' => ['项目1', '项目2']],
    ['name' => '分类2', 'items' => ['项目3', '项目4']]
];

foreach ($array as $category) {
    echo "分类名称: " . $category['name'] . "\n";
    echo "项目列表: ";
    foreach ($category['items'] as $item) {
        echo $item . ", ";
    }
    echo "\n\n";
}
?>

<?php
$array = [
    ['name' => '分类1', 'items' => ['项目1', '项目2']],
    ['name' => '分类2', 'items' => ['项目3', '项目4']]
];

// 检查键名是否正确
if (isset($array[0]['name'])) {
    echo $array[0]['name'];
} else {
    echo "键名错误或不存在";
}
?>