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array_diff_key:根据数组键计算多个数组的差集

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Release： 2016-06-06 19:39:35
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array_diff_key($array1,array$array2......) 返回一个键在第一个数组但是不在其他数组的新数组 $arr1 = array('a'='aa','b'='bb','c'='cc','d'='dd');$arr2 = array('a'='aaa','b'='bbb','f'='fff');$arr = array_diff_key($arr1,$arr2);echo 'pre';print_r

array_diff_key( $array1 , array $array2 ...... )
返回一个键在第一个数组但是不在其他数组的新数组

$arr1 = array('a'=>'aa','b'=>'bb','c'=>'cc','d'=>'dd');
$arr2 = array('a'=>'aaa','b'=>'bbb','f'=>'fff');

$arr = array_diff_key($arr1,$arr2);

echo '<pre class="brush:php;toolbar:false">';
print_r($arr);

result:
Array
(
    [c] => cc
    [d] => dd
)
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Related labels：
array diff key Multiple difference set array calculate
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