array_diff_assoc:同时根据数组键和值,计算数组的差集

$arr1 = ['a'=>'aaa','b'=>'bbb',1=>'1',2=>2];
$arr2 = ['a'=>'bbb','b'=>'ccc',2=>2];
$arr = array_diff_assoc($arr1,$arr2);

echo '';
print_r($arr);

result:
Array
(
    [a] => aaa
    [b] => bbb
    [1] => 1
)		            		        	
			

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