如果项目来自某一类型/类别，则为Foreach项

Question

我正在寻找来自php数组的项，其中类型是"key“。显示其中一个类型为-2类型的所有项目。

谢谢

 <?php $gallery = [];
       $gallery [1] = [
       "Name" => "Three Full Length Mirrors",
       "Description" => "Three mirrors with silver aluminum profile. ",
       "image" => "full-mirror.jpg",
       "type" => [
                "type-1",
                "type-2",
                "type-3"
            ]
        ];
    ?>

Answer 1

您可以使用array_filter对数组进行预筛选，但是将测试放在foreach循环中也同样容易：

foreach ($gallery as $g) {
    if (!in_array('type-2', $g['type'])) continue;
    // rest of code
}

Answer 2

<?php 


$result = array_filter($gallaries, function($gallery){
    // If below is true element stays, the false cases get removed from array
    return in_array('type-2',$gallery['type'])
});