Question

我有一个数组，我需要通过添加值来处理，然后删除任何添加的重复项。

这是原始阵列......

Array (     
[0] => Array ( [PID] => 2872 [QTY] => 1 ) 
[1] => Array ( [PID] => 3145 [QTY] => 2 ) 
[2] => Array ( [PID] => 3107 [QTY] => 1 ) 
[3] => Array ( [PID] => 2739 [QTY] => 1 ) 
[4] => Array ( [PID] => 3137 [QTY] => 1 ) 
[5] => Array ( [PID] => 3107 [QTY] => 1 ) 
[6] => Array ( [PID] => 2739 [QTY] => 1 ) 
[7] => Array ( [PID] => 3107 [QTY] => 1 ) 
[8] => Array ( [PID] => 3137 [QTY] => 4 ) 
[9] => Array ( [PID] => 3551 [QTY] => 1 ) 
[10] => Array ( [PID] => 3107 [QTY] => 1 ) 
[11] => Array ( [PID] => 3107 [QTY] => 1 ) 
[12] => Array ( [PID] => 3137 [QTY] => 1 ) 
[13] => Array ( [PID] => 3551 [QTY] => 2 ) 
[14] => Array ( [PID] => 3136 [QTY] => 1 ) 
[15] => Array ( [PID] => 3137 [QTY] => 1 ) 
[16] => Array ( [PID] => 3032 [QTY] => 1 ) 
[17] => Array ( [PID] => 3551 [QTY] => 1 ) 
[18] => Array ( [PID] => 3107 [QTY] => 1 )
[19] => Array ( [PID] => 3459 [QTY] => 1 ) 
[20] => Array ( [PID] => 3141 [QTY] => 1 )
[21] => Array ( [PID] => 2724 [QTY] => 1 ) 
[22] => Array ( [PID] => 2743 [QTY] => 1 )
[23] => Array ( [PID] => 3139 [QTY] => 2 )
[24] => Array ( [PID] => 3137 [QTY] => 2 ) 
[25] => Array ( [PID] => 3107 [QTY] => 1 ) 
)

我需要做的是获取此数组并从相同的[PID]值添加[QTY]值，然后在此结束后使用这样的数组......

Array ( 
[0] => Array ( [PID] => 2724 [QTY] => 1 ) 
[1] => Array ( [PID] => 2739 [QTY] => 2 ) 
[2] => Array ( [PID] => 2743 [QTY] => 1 )
[3] => Array ( [PID] => 2872 [QTY] => 1 ) 
[4] => Array ( [PID] => 3032 [QTY] => 1 ) 
[5] => Array ( [PID] => 3107 [QTY] => 7 ) 
[6] => Array ( [PID] => 3136 [QTY] => 1 ) 
[7] => Array ( [PID] => 3137 [QTY] => 9 ) 
[8] => Array ( [PID] => 3139 [QTY] => 2 )
[9] => Array ( [PID] => 3141 [QTY] => 1 )
[10] => Array ( [PID] => 3145 [QTY] => 2 ) 
[11] => Array ( [PID] => 3459 [QTY] => 1 ) 
[12] => Array ( [PID] => 3551 [QTY] => 4 ) 
)

所以添加所有QTY然后删除重复项。

我不太确定在这里继续前进的最佳方式。有什么建议吗？

Answer 1

循环遍历它们，创建一个新的数组，其中PID为键，QTY为值，因此您可以添加后者。

foreach ($array as $row) {
    list($pid, $qty) = $row;
    $sums[$pid] += $qty;
}

显然你可以抛出一个isset来压制通知。

如果您需要以前的阵列结构，请再次转换它。

Answer 2

我只是使用一个简单的循环：

$combined = array();
// $org will be the original structure

foreach($org as $id => $data) {
   $pid = $data['PID'];
   if(!isset($combined[$pid])) {
     $combined[$pid] = $data;
   } else {
     $combined[$pid]['QTY'] += $data['QTY'];
   }
}

// return keys to normal indexs instead of the PID
array_values($combined);

添加值，删除php数组中的重复项

2 个答案: