Question

我有一个数组：

Array
(
    [customer] => One
    [itemno] => Yellow Ribbon
    [price] => 1,2

)
Array
(
    [customer] => One
    [itemno] => Blue Band
    [price] => 0,5
)
Array
(
    [customer] => Two
    [itemno] => Red Tape
    [price] => 2,0
)

我希望像这样将客户分组：

Array
(
    [One] => Array (
        [itemno] => Yellow Ribbon
        [price] => 1,2
        ) 
        [itemno] => Blue Band
        [price] => 0,5
        )

    [Two] => Array (
        [itemno] => Red Tape
        [price] => 2,0
        )
 )

我该如何做到这一点？

Answer 1

如果我们将调用第一个数组$ start和最后一个$ finish，那么：

$finish = array();
foreach ($start as $v){
  $finish[$v['customer']][] = array('itemno'=>$v['itemno'], 'price'=>$v['price']);
}

Answer 2

$newArray =array(); 
foreach($originalArray as $item){
  if(!array_key_exists($item->customer, $newArray)){
      $newArray[$item->customer]= array();
  }
  $newArray[$item->customer][] = $item;
}

//最终结果将是$ newArray = array（'customer1'=＆gt; array（customers ...），'customer2'=＆gt; array（customers ...））;

PHP分组数组

2 个答案: