比较两个数组而不排序它们[重复]

Question

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• comparing arrays in php, without caring for the order 5 answers

I'm trying solving a problem where i need to check if the arrays are same no matter how they are sorted i cannot use sorting because it add extra over head to time this function is taking in answering.

I am currently using array_diff_assoc

$arr1 = array(1,2,3);
$arr2 = array(3,2,1);

$result = array_diff_assoc($arr1,$arr2);

print_r($result);

Array ( [0] => 1 [2] => 3 ) But the above arrays are same!! The human way.

Any idea for comparing two arrays.

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Answer 1

Well interpreter is not human right ? ;)

Even if you do a simple var_dump($arr1==$arr2) on your existing array, it will return false.

This below code returns true !

$arr1 = array(1,2,3);
$arr2 = array(2=>3,1=>2,0=>1);//position is same as yours., i've just set a key
var_dump($arr1==$arr2); //true