要回显的PHP数组多级

Question

我再次遇到数组问题：(我有这个：

Array
(
  [results] => Array
    (
        [0] => Array
            (
                [backdrop_path] => htttp://link.com/img.jpg
                [id] => 23951
                [title] => 1
            )
        [1] => Array
            (
                [backdrop_path] => htttp://link.com/img.jpg
                [id] => 23952
                [title] => 2
            )
        [2] => Array
            (
                [backdrop_path] => htttp://link.com/img.jpg
                [id] => 23953
                [title] => 3
            )
        [3] => Array
            (
                [backdrop_path] => htttp://link.com/img.jpg
                [id] => 23954
                [title] => 4
            )
    )

)

如何将其转换为：

标题：1

标题：2

标题：3

title：4

非常感谢！

Answer 1

使用foreach

echo '<ul>';
foreach ($array['results'] as $element) {
    echo "<li>title: {$element['title']}</li>";
}
echo '</ul>';

Answer 2

if (!empty($array['results'])){
   echo '<ul>';
   foreach ($array['results'] as $a){
      echo "<li>title: {$a['title']}</li>";
   }
   echo '</ul>';
}

Answer 3

我建议您使用array_map（）而不是foreach()或for循环。示例：

echo '<ul>';
array_map(function($v){echo '<li>Title: '.$v['title'].'</li>';}, $str['results']);
echo '</ul>';