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我想根据列的匹配值合并两个数组。这是我的 2 个数组。

$array1 = array(2) {
   [0] => array(2) {
      ["total_process_per_category"] => string(2) "6"
      ["category_id"] => string(1) "1"
   }
   [1] => array(2) {
      ["total_process_per_category"] => string(1) "2"
      ["category_id"] => string(1) "2"
   }
}

$array2 = array(2) {
   [0] => array(2) {
      ["total_pinned_per_category"] => string(2) "16"
      ["category_id"] => string(1) "1"
   }
   [1] => array(2) {
      ["total_pinned_per_category"] => string(1) "4"
      ["category_id"] => string(1) "2"
   }
}

我想用这两个数组得到的东西是这样的。

array(2) {
   [0] => array(3) {
      ["total_process_per_category"] => string(2) "6"
      ["total_pinned_per_category"] => string(2) "16" …