我有两个这样的数组:
array1 = Array (
[0] => Array ( [value] => 1 [date] => 2014-03-15 ),
[1] => Array ( [value] => 1 [date] => 2014-03-15 )
);
array2 = Array (
[0] => Array ( [value] => 1 [date] => 2014-03-15 ),
[1] => Array ( [value] => 1 [date] => 2014-03-16 )
);
如何获得这样的输出?
日期2014-03-15 = 3
日期2014-03-16 = 1
答案 0 :(得分:2)
你不能直接将这些数组与array_merge合并,因为计数基于'value',所以你必须创建一些代码,试试这个:
$array1 = array(
array("value" => 1, "date" => "2014-03-15"),
array("value" => 1, "date" => "2014-03-15"),
);
$array2 = array(
array("value" => 1, "date" => "2014-03-15"),
array("value" => 1, "date" => "2014-03-16"),
);
foreach(array_merge($array1, $array2) as $arr){
!isset($array[$arr['date']]) ? $array[$arr['date']] = $arr['value'] : $array[$arr['date']] += $arr['value'];
}
print_r($array);
它会返回:
Array ( [2014-03-15] => 3 [2014-03-16] => 1 )