Arrays 合并多维数组（PHP）

假设我有两个多维数组，具有相同的结构，如下所示：

Array ( [0] => Tips Object ( [id] => 1 [userId] => 10 )
    [1] => Tips Object ( [id] => 2 [userId] => 22 )
    [2] => Tips Object ( [id] => 3 [userId] => 33 )
    [3] => Tips Object ( [id] => 7 [userId] => 77 ) ) 


Array ( [0] => Tips Object ( [id] => 2 [userId] => 22 )
    [1] => Tips Object ( [id] => 3 [userId] => 33 )
    [2] => Tips Object ( [id] => 4 [userId] => 44 )
    [3] => Tips Object ( [id] => 5 [userId] => 55 )
    [4] => Tips Object ( [id] => 6 [userId] => 66 ) ) 

我需要一种方法来合并它们，这样我就可以得到：

Array ( [0] => Tips Object ( [id] => 1 [userId] => 10 )
    [1] => Tips Object ( [id] => 2 [userId] => 22 )
    [2] => Tips Object ( [id] => 3 [userId] => 33 )
    [3] => Tips Object ( [id] => 4 [userId] => 44 )
    [4] => Tips Object ( [id] => 5 [userId] => 55 )
    [5] => Tips Object ( [id] => 6 [userId] => 66 )
    [6] => Tips Object ( [id] => 7 [userId] => 77 ) )

真正的多维数组将更加复杂，这一个只是为了帮助解释我需要什么

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谢谢

我假设您要做的是将两个按id或userid排序的序列合并到一个最终排序的序列中。在这种情况下，请查看作为MergeSort一部分使用的合并过程：

用户标识20和30在最终数组中的位置？我已更改了我的问题，请提供帮助

$array1=array(  0=>array('id'=>'1','userid'=>'10'),
                1=>array('id'=>'2','userid'=>'22'),
                2=>array('id'=>'3','userid'=>'33'),
                3=>array('id'=>'7','userid'=>'77'));

$array2=array(  0=>array('id'=>'2','userid'=>'22'),
                1=>array('id'=>'3','userid'=>'33'),
                2=>array('id'=>'4','userid'=>'44'),
                3=>array('id'=>'5','userid'=>'55'),
                4=>array('id'=>'6','userid'=>'66'));

echo "<pre>";

$mix = array();
foreach($array2 as $k=>$value)
{
    if(!in_array($value,array_values($array1))){
        $array1[] = $value;
    }
}


function sortById($a, $b) {
    return $a['id'] - $b['id'];
}
usort($array1, 'sortById');
print_r($array1);
exit;