如何在PHP中合并两个多维数组

Question

如何在PHP中合并两个多维数组？我有两个多维数组A和B。我需要将A和B合并成一个新的数组C，如下所示：

$A = array( 
array("a1"=>1,"b1"=>2,"c1"=>"A"), 
array("a1"=>1,"b1"=>16,"c1"=>"Z"), 
array("a1"=>3,"b1"=>8,"c1"=>"A")); 

$B = array( 
array("a2"=>1,"b2"=>2,"b2"=>"A"), 
array("a2"=>1,"b2"=>16,"b2"=>"G"), 
array("a2"=>3,"b2"=>8,"b2"=>"A")); 

//将A和B连接在一起形成C

$C=array( 
array("a1"=>1,"b1"=>2,"c1"=>"A"), 
array("a1"=>1,"b1"=>16,"c1"=>"Z"), 
array("a1"=>3,"b1"=>8,"c1"=>"A"),
array("a2"=>1,"b2"=>2,"b2"=>"A"), 
array("a2"=>1,"b2"=>16,"b2"=>"G"), 
array("a2"=>3,"b2"=>8,"b2"=>"A"));

- nikki

---

你想保留两个数据还是选择唯一值？ - Kuzgun

Answer 1

使用array_merge函数，如下所示：

$C = array_merge($A, $B);
print_r($C);

当我运行上面的脚本时，它会输出：

Array ( 
    [0] => Array ( 
        [a1] => 1 
        [b1] => 2 
        [c1] => A 
    ) 
    [1] => Array ( 
        [a1] => 1 
        [b1] => 16 
        [c1] => Z
    ) 
    [2] => Array ( 
        [a1] => 3 
        [b1] => 8 
        [c1] => A 
    ) 
    [3] => Array ( 
        [a2] => 1 
        [b2] => A
    ) 
    [4] => Array ( 
        [a2] => 1 
        [b2] => G 
    ) 
    [5] => Array ( 
        [a2] => 3 
        [b2] => A 
    )
) 

在这里快速阅读：http://php.net/manual/function.array-merge.php

- Joran Den Houting

Answer 2

$C = array_merge($A, $B);

应该可以解决问题（文档）。

- Ben

Answer 3

你试过一些PHP数组函数吗？ 我认为这些函数中的一些可以使用：array_merge_recursive()，array_merge()。

$array1 = array("farbe" => "rot", 2, 4);
$array2 = array("a", "b", "farbe" => "grün", "form" => "trapezoid", 4);
$result = array_merge($array1, $array2);
print_r($result);

- LaMiy

Answer 4

你也可以这样做：

foreach($B as $key => $value){
    $C[$key] = array_merge($A[$key], $B[$key]);
}

- Dinesh

Answer 5

你好，我曾经遇到过同样的情况，需要在日历中显示重复事件。

所以我使用了这个解决方案：

 public function array_interlace() {
    $args = func_get_args();
    $total = count($args);

    if($total < 2) {
        return FALSE;
    }

    $i = 0;
    $j = 0;
    $arr = array();

    foreach($args as $arg) {
        foreach($arg as $v) {
            $arr[$j] = $v;
            $j += $total;
        }

        $i++;
        $j = $i;
    }

    ksort($arr);
    return array_values($arr);
}

数组的所需输出

$a = array('a', 'b', 'c', 'd');
$b = array('a','e', 'f', 'g');
$c = array('h', 'i', 'j');
$d = array('k', 'l', 'm', 'n', 'o');

print_r(array_interlace($a, $b, $c, $d));
Array
(
[0] => a
[1] => a
[2] => h
[3] => k
[4] => b
[5] => e
[6] => i
[7] => l
[8] => c
[9] => f
[10] => j
[11] => m
[12] => d
[13] => g
[14] => n
[15] => o
)

我发现这个解决方案很合适。

- Shubham