Question

我想加入两个数组，其中1个键应该加入它们。

    array:1 [
      0 => array:2 [
        "MONAT" => "AUG"
        "MAIL_CNT" => "2"
      ]
     1 => array:2 [
        "MONAT" => "JUL"
        "MAIL_CNT" => "1"
      ]
    ]

    array:2 [
      0 => array:2 [
        "MONAT" => "AUG"
        "ORDER_CNT" => "18"
      ]
      1 => array:2 [
        "MONAT" => "JUL"
        "ORDER_CNT" => "1"
      ]
    ]

结果应该是

array:1 [
      0 => array:2 [
        "MONAT" => "AUG"
        "MAIL_CNT" => "2"
        "ORDER_CNT" => "18"
      ]
     1 => array:2 [
        "MONAT" => "JUL"
        "MAIL_CNT" => "1"
        "ORDER_CNT" => "1"
      ]
    ]

我无法弄清楚该怎么做。

提前致谢和问候！

Answer 1

使用array_replace_recursive

$array = array_replace_recursive($a1, $a2);

Answer 2

你应该使用php array_replace_recursive()来实现这个

$arr1=array(
    0 =>array(
        "MONAT" => "AUG",
        "MAIL_CNT" => "2"
    ),
    1 => array(
        "MONAT" => "JUL",
        "MAIL_CNT" => "1"
    )
);

$arr2=array(
    0 => array(
        "MONAT" => "AUG",
        "ORDER_CNT" => "18"
    ),
    1 => array(
        "MONAT" => "JUL",
        "ORDER_CNT" => "1"
    )
);

$array = array_replace_recursive($arr1, $arr2);
echo"<pre>"; print_r($array);

Answer 3

$mergedArray = array();
foreach( $arr1 as $key => $row) {
    $mergedArray[$key] = array_merge($arr2[$key], $row)
}

希望这会有所帮助

Answer 4

第一名：简单使用array_merge

第二名： &表示通过引用传递而不是value

foreach( $array1 as $key => &$val) {
   $val = array_merge($val,$array2[$key]);
}
print_r($array1);

注意：以上代码仅在both array count相同时才有效，否则会引发错误。

PHP Merge Array并保持密钥

4 个答案: