Php 合并两个数据数组

我想合并两个数组，其中每个数组都有相同的索引（这里是ID），但我不想删除重复的ID （对不起我的英语…）

我有这个数组（

$data['student']

）

这个数组

$data\u student\u name

Array ( [0] => Array ( [id] => 5 [firstname] => Bruno [sex] => M ) [1] => Array ( [id] => 14 [firstname] => David [sex] => M ) [2] => Array ( [id] => 16 [firstname] => Élyse [sex] => F ) [3] => Array ( [id] => 17 [firstname] => Jean [sex] => M ) [4] => Array ( [id] => 18 [firstname] => Julie [sex] => F ) [5] => Array ( [id] => 19 [firstname] => Marie [sex] => F ) )

我将我的两个数组与此组合

  $data['group_student']= array(); 
    foreach ($data_student_name as $arr) { 
        $match = false; 
        foreach ($data['student'] as $arr2) { 
            if ($arr['id'] == $arr2['id']) { 
               $match = true; 
               $data['group_student'][] = array_merge($arr, $arr2); 
               break; 
            } 
        } 
        if ( !$match ) $data['group_student'][] = $arr; 
    } 

我选择了这个结果（玛丽没有重复：（）（

$data['group\u student']

）

我想要这个结果（玛丽是复制品）

---

我该怎么做呢？

您好，您可以参考下面的链接

---

谢谢。+

使用

array\u merge

array_merge($arr1, $arr2);

---

请让我们在这些巨大的数组定义中添加一些新行！

  $data['group_student']= array(); 
    foreach ($data_student_name as $arr) { 
        $match = false; 
        foreach ($data['student'] as $arr2) { 
            if ($arr['id'] == $arr2['id']) { 
               $match = true; 
               $data['group_student'][] = array_merge($arr, $arr2); 
               break; 
            } 
        } 
        if ( !$match ) $data['group_student'][] = $arr; 
    } 

Array ( [0] => Array ( [id] => 5 [firstname] => Bruno [sex] => M [groups_id] => 1 [group_number] => 301 ) [1] => Array ( [id] => 14 [firstname] => David [sex] => M [groups_id] => 1 [group_number] => 301 ) [2] => Array ( [id] => 16 [firstname] => Élyse [sex] => F [groups_id] => 1 [group_number] => 301 ) [3] => Array ( [id] => 17 [firstname] => Jean [sex] => M [groups_id] => 1 [group_number] => 301 ) [4] => Array ( [id] => 18 [firstname] => Julie [sex] => F [groups_id] => 1 [group_number] => 301 ) [5] => Array ( [id] => 19 [firstname] => Marie [sex] => F [groups_id] => 2 [group_number] => 434 )  1 )) 

Array ( [0] => Array ( [id] => 5 [firstname] => Bruno [sex] => M [groups_id] => 1 [group_number] => 301 ) [1] => Array ( [id] => 14 [firstname] => David [sex] => M [groups_id] => 1 [group_number] => 301 ) [2] => Array ( [id] => 16 [firstname] => Élyse [sex] => F [groups_id] => 1 [group_number] => 301 ) [3] => Array ( [id] => 17 [firstname] => Jean [sex] => M [groups_id] => 1 [group_number] => 301 ) [4] => Array ( [id] => 18 [firstname] => Julie [sex] => F [groups_id] => 1 [group_number] => 301 ) [5] => Array ( [id] => 19 [firstname] => Marie [sex] => F [groups_id] => 2 [group_number] => 434 )  [6] => Array ( [id] => 19 [firstname] => Marie [sex] => F [groups_id] => 2 [group_number] => 301 )) 

                     OR

array_merge($arr1, $arr2);