關聯數組鍵值對用分隔符

Question

$user = $stmt->fetchAll(PDO::FETCH_ASSOC); 
print_r($user); 

我得到的輸出是：

Array 
(
    [0] => Array 
     (
      [ID] => US101 
      [FirstName] => Ramesh 
      [MobileNo] => 3125627127 
      [City] => Bombay 
     ) 

    [1] => Array 
     (
      [ID] => US102 
      [FirstName] => Ravindar 
      [MobileNo] => 45624152627 
      [City] => Culcatta 
     ) 
) 

我需要的輸出是：

Array 
(
    [US101] => US101 | Ramesh | 3125627127 | Bombay 
    [US102] => US102 | Ravindar | 45624152627 | Culcatta 
) 

Answer 1

試試這個：

$formatted = []; 
foreach($user as $v) 
{ 
    $formatted[$v['ID']] = implode(' | ', $v); 
} 

print_r($formatted); 

Answer 2

你應該使用CONCAT_WS，如下所示

select CONCAT_WS('|',ID,FirstName,MobileNo,City) from table_name; 

然後輸出將被Concat的列的值

Answer 3

$userModified = array_map(function($item) { 
    return [ 
     $item['id'] => implode($item, '|') 
    ]; 
}, $user);