note 94009 added to function.array-diff
| From: | meatfusionstream dot org at osu1 dot php dot net | Date: | Mon, 12 Oct 2009 07:13:03 +0000 |
| Subject: | note 94009 added to function.array-diff | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-161643@lists.php.net to get a copy of this message | ||
To build on "merlinyoda at dorproject dot net" comment from 28-Mar-2008 06:11.
If you are dealing with associative arrays:
Instead of array_intersect we use array_intersect_assoc and instead of array_diff we use
array_diff_assoc. Looks like a no brainer but this left me stumped for quite a while.
Also note that the order of the arrays when passed to array_merge and array_intersect_assoc are very
important to the result.
<?php
function array_xor ($array_a, $array_b) {
$union_array = array_merge($array_a, $array_b);
$intersect_array = array_intersect_assoc($array_a, $array_b);
return array_diff_assoc($union_array, $intersect_array)
}
?>
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