我有如下所示的数组。我想要一个结果数组,其中对于具有相同值[tick_id]
的所有行,对关键元素[tv]
、[tu]
、[cost]
、[km]
中的值求和。在这个例子中,我们应该求和数组元素0、1、2…的值[tv]
、[tu]
、[cost]
、[km]
。我该怎么做?
Array (
[0] => stdClass Object (
[id] => 15
[user_id] => 44
[name] => inspector1
[tv] => 0.00
[tc] => 0.00
[tu] => 0.00
[cost] => 0.00
[kms] => 0
[date_s] => 2012-03-30
[notes] =>
[tick_id] => 11
[tot_fee] => 5500
)
[1] => stdClass Object (
[id] => 39
[user_id] => 46
[name] => Assistant
[tv] => 10.00
[tc] => 0.00
[tu] => 4.50
[cost] => 0.00
[kms] => 120
[date_s] => 2012-03-31
[notes] =>
[tick_id] => 15
[tot_fee] => 0
)
[2] => stdClass Object (
[id] => 35
[user_id] => 46
[name] =>
[tv] => 0.00
[tc] => 0.00
[tu] => 0.00
[cost] => 0.00
[kms] => 0
[date_s] => 2012-03-30
[notes] =>
[tick_id] => 13
[tot_fee] => 3200
)
…
)
很难判断代码的显示方式,但这应该是您所需要的:
// Create the cost total array
$cost = array();
// Iterate over each object in the given array
foreach ($array as $object)
{
// If the tick_id has not yet been assigned as a key then do so with a default cost of 0
if (!isset($cost[$object->tick_id]))
{
$cost[$object->tick_id] = 0;
}
// Increment the total cost for the given tick_id
$cost[$object->tick_id] += $object->tv + $object->km + $object->tu + $object->cost;
}
$cost
将是其中key
为tick_id
且value
为总成本的阵列。