PHP foreach循环键值 [英] PHP foreach loop key value

问题描述

我运行这个数据库调用让我多维数组
我想获得每个的键，但是当我尝试它出现空白或作为数组。

  $ root_array = array（）; 
 $ sites = $ this-> sites（$ member_id）; 
 foreach（$ sites为$ 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（$ place as $ place）{
 $ root_array [$ site ['name']] [] = $ place; 
} 
 
} 
 return $ root_array; 
  

这是我的php循环：

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

另外当我运行一个刚刚吐出数组的测试时，结果是
我试图呈现的是[费城]

  [Philadelphia] => Array 
（
 [0] => Array 
（
 [place_name] => XYX 
 [place_id] => 103200 
 [place_status ] => 0 
）
 
 [1] =>数组
（
 [place_name] => YYYY 
 [place_id] => ; 232323 
 [place_status] => 0 
）
  

解决方案

$ b

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

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;

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 ?>

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
            )

解决方案

You can access your array keys like so:

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

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