循環通過陣列並把字符串轉換爲嵌套數組

Question

我有10個陣列具有以下格式：

這是$數據

Array 
(
    [0] => stdClass Object 
     (
       [id] => 1 
       [name] => Product Name 
       [category] => Product category 
       [permName] => Product-Name 
       [picture] => http://randomdomain.com/1.jpg 
       [idUser] => 1,2,3 
       [rating] => 120,880,450 
       [description] => Review 1, Review 2, Review 3 
       [firstName] => Name 1, Name 2, Name 3 
       [lastName] => Last 1, Last 2, Last 3 
       [userName] => userName 1, Username 2, Username 3 
     ) 
    [1] => stdClass Object 
     (
       [id] => 2 
       [name] => Product Name 2 
       [category] => Product category 
       [permName] => Product-Name 
       [picture] => http://randomdomain.com/1.jpg 
       [idUser] => 1,2,3 
       [rating] => 120,880,450 
       [description] => Review 1, Review 2, Review 3 
       [firstName] => Name 1, Name 2, Name 3 
       [lastName] => Last 1, Last 2, Last 3 
       [userName] => userName 1, Username 2, Username 3 
     ) 

) 

我想將每個陣列ID用戶所，等級，描述，名字， lastName，userName嵌套數組中。我想這樣做是這樣的：

foreach ($data as $row) {     
    $firstName = $row->firstName;   
    $firstNames = explode(',', $firstName); 
} 

哪把它變成數組，但我會怎樣，然後將它裝回其原來的地方，但作爲一個嵌套的數組原來的陣列？

Answer 1

<?php 
foreach($data as $row) { 
    $firstName = $row->firstName;   
    $firstNames = explode(',', $firstName); 
    $nested = array(); 
    foreach($firstNames as $name) { 
     $nested[] = $name; 
    } 
    $row->firstName = $nested; 
} 
?>