我需要得到阵列

Question

我的阵列结构的值是

Array 
(

    [customer_id] => Array 
     (
      [0] => Array 
       (
        [customer_id] => 123 
       ) 
     ) 
    [menu_item_net_price] => 1700 
    [menu_item_tax_price] => 4% 
    [menu_item_gross_price] => 1700 
    [provider_id] => 123 
) 

我需要得到的[customer_id] => 123值。告诉我我该怎么做？

不过我的问题还没有解决，所以我张贴代码：

$data['customer_id'] = $this->session->userdata('id'); 
      $data['menu_item_net_price']= $netPrice; 
      $data['menu_item_tax_price']= '4%'; 
      $data['menu_item_gross_price']= $netPrice; 
      $data['provider_id']= 123; 
      echo '<pre>'; 
      print_r($data); 
      echo '</pre>'; 
      exit(0); 

Answer 1

echo $data['customer_id'][0]['customer_id']; 

Answer 2

如果你想保持阵列的格式，你可以做到这一点，如：

<?php 
$data['customer_id'] = $this->session->userdata('id'); 
$data['customer_id'] = $data['customer_id'][0]['customer_id']; 
$data['menu_item_net_price']= $netPrice; 
$data['menu_item_tax_price']= '4%'; 
$data['menu_item_gross_price']= $netPrice; 
$data['provider_id']= 123; 
?> 

Answer 3

如果你改变阵列的格式很简单：

<?php 
$data[$this->session->userdata('id')]['menu_item_net_price']= $netPrice; 
$data[$this->session->userdata('id')]['menu_item_tax_price']= '4%'; 
$data[$this->session->userdata('id')]['menu_item_gross_price']= $netPrice; 
$data[$this->session->userdata('id')]['provider_id']= 123; 

echo $data[$customer_id]['provider_id']; //echoes 123 
?>