問題描述

我正在運(yùn)行這個(gè)數(shù)據(jù)庫調(diào)用來獲取多維數(shù)組我正在嘗試獲取每個(gè)鍵的鍵，但是當(dāng)我嘗試時(shí)它出現(xiàn)空白或數(shù)組.

I am running this DB call to get me multi-dimensional array I am trying to get the keys of each but when I try it comes up blank or as array.

$root_array = array();
$sites = $this->sites($member_id);
foreach ($sites as $site){
    $records = $this->db->select('p.name as place_name, p.id as place_id,p.active as place_status')
                ->from('places p')
                ->join('members_permissions pm','pm.sites_id = p.sites_id and pm.members_id ='.$member_id)
                ->where('p.active', 0)
                ->get();

    $places = $records->result_array();
    $places['name'] = $site['name'];
    foreach($places as $place){
       $root_array[$site['name']][] = $place;
    }

}
return $root_array;

這是我的 php 循環(huán):

here is my php that loops through:

<?php foreach($places as $site): ?>
    <h5><?=key($site)?></h5>
        <?php foreach($site as $place): ?>
            <h6><?=$place['place_name']?></h6>
        <?php endforeach?>

<?php endforeach ?>

此外，當(dāng)我運(yùn)行一個(gè)只是吐出數(shù)組的測試時(shí)，這就是結(jié)果，我試圖呈現(xiàn)的是[費(fèi)城]

Also when I run a test which just spits out the array this is the result, What I am trying to render is [Philadelphia]

[Philadelphia] => Array
        (
            [0] => Array
                (
                    [place_name] => XYX
                    [place_id] => 103200
                    [place_status] => 0
                )

            [1] => Array
                (
                [place_name] => YYYY
                [place_id] => 232323
                [place_status] => 0
            )

推薦答案

你可以像這樣訪問你的數(shù)組鍵:

You can access your array keys like so:

foreach ($array as $key => $value)

這篇關(guān)于PHP foreach 循環(huán)鍵值的文章就介紹到這了，希望我們推薦的答案對大家有所幫助，也希望大家多多支持html5模板網(wǎng)！