多维比较两个数组

Question

我有两个数组

$array1 = array(0=>array('mac'=>'mac0','geo'=>'geo0'),1=>array('mac'=>'mac1','geo'=>'geo1'),
2=>array('mac'=>'mac2','geo'=>'geo2')...);


$array2 = array(0=>array('id'=>'id0','gname'=>'gname0'),1=>array('id'=>'id1','gname'=>'gname1'),
2=>array('id'=>'id2','gname'=>'gname2')...);

我想比较两个数组的第一个数组值mac和第二个数组值gname

如果geo的值在gname的值中可用，则更新else做注释更新else做

不更新

例如，如果数组的值在array2中的任何数组中均可用，则UPDATE

否则不更新

Answer 1

这里写的代码：

    $array1 = array(0=>array('mac'=>'mac0','geo'=>'geo0'),1=>array('mac'=>'mac1','geo'=>'geo1'),
2=>array('mac'=>'mac2','geo'=>'geo2'));


$array2 = array(0=>array('id'=>'id0','gname'=>'gname0'),1=>array('id'=>'id1','gname'=>'gname1'),
2=>array('id'=>'id2','gname'=>'gname2'));

function gluearray($ar1, $ar2) {
    foreach($ar2 as $key=>$value) {
        if(isset($ar1[$key])) {
            if(is_array($ar1[$key])) {
                $ar1[$key] = gluearray($ar1[$key], $value);
            } else {
                if($ar1[$key]!==$value) {
                    $ar1[$key] = $value;
                }
            }
        } else {
            $ar1[$key] = $value;
        }
    }
    return $ar1;
}
print_r(gluearray($array1, $array2));

结果：

数组（[0] =>数组（[mac] => mac0 [geo] => geo0 [id] => id0 [gname] => gname0）[1] =>数组（[mac] => mac1 [geo] => geo1 [id] => id1 [gname] => gname1）[2] =>数组（[mac] => mac2 [geo] => geo2 [id] => id2 [gname] => gname2）））