如何从PHP的关联数组的内部键访问值？ [英] How to access the values from inner key of associative array in PHP?

问题描述

以下是可能是多维数组 $ form_data ：

 数组
（
 [form_submitted] => yes 
 [teacher_id] => 3807f31f8c4357bbb56662047529dcde 
 [cs_map_ids] => Array 
（
 [0] => 144 
 [1] => 130 
 [2] => 131 
 [3] => 67 
 [4] => 89 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 $ p>我只想使用foreach循环访问键 [cs_map_ids] 的值。但是无法访问数组 [cs_map_ids] 中的值。任何人都可以帮助我如何访问这些值使用foreach循环一个接一个？应该很简单，试试 
 
 <$ <$ p 
 
 
 
解决方案
 p $ p>  foreach（$ form_data ['cs_map_ids'] as $ map_id）
 {
 echo $ map_id; 
} 
  




Following is may multidimensional array named $form_data:

Array
(
    [form_submitted] => yes
    [teacher_id] => 3807f31f8c4357bbb56662047529dcde
    [cs_map_ids] => Array
        (
            [0] => 144
            [1] => 130
            [2] => 131
            [3] => 67
            [4] => 89
        )

    [btn_submit] => Done
)

I want to access only the values from key [cs_map_ids] using foreach loop. But couldn't access the values inside array [cs_map_ids]. Can anyone help me out on how should I access these values one by one using foreach loop? Thanks in Advance.

解决方案

Should be quite straight forward, try

foreach($form_data['cs_map_ids'] as $map_id)
{
    echo $map_id;
}

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