Working with arrays in PHP

Question

Assuming you have three arrays that can contain different values ​​as follows:

$arr1 = array('1', '5', '10'); $arr2 = array('1', '3', '10'); $arr3 = array('1', '6', '10'); 

How would you divide that differently and get it like this:

 $arr1 = array('1', '10'); $arr2 = array('1', '10'); $arr3 = array('1', '10'); 

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I meant that I wanted to get it as follows:

 $result = array('1', '10'); 

Answer 1

Use array_intersect :

 <?php $arr1 = array('1', '5', '10'); $arr2 = array('1', '3', '10'); $arr3 = array('1', '6', '10'); $result = array_intersect($arr1, $arr2, $arr3); print_r($result); //now assign it back: $arr1 = $result; $arr2 = $result; $arr3 = $result; ?>