PHP: Case-insensitive “array_diff”

Question

I have following two arrays and the code to find array_diff:

$obs_ws = array(\"you\", \"your\", \"may\", \"me\", \"my\", \"etc\");
$all_ws = array(\"LOVE\", \"Wo         


        

Answer 1

Try to pass strcasecmp as third parameter to array_udiff function:

<?php
$obs_ws = array("you", "your", "may", "me", "my", "etc");
$all_ws = array("LOVE", "World", "Your", "my", "etc", "CoDe");

$final_ws = array_udiff($all_ws, $obs_ws, 'strcasecmp');

print_r($final_ws);

Output:

Array
(
    [0] => LOVE
    [1] => World
    [5] => CoDe
)

Answer 2

You were on the right track. This is my suggestion:

function array_casecmp($arr1,$arr2){
    return array_udiff($arr1,$arr2,'strcasecmp');
}


$obs_ws = array("you", "your", "may", "me", "my", "etc");
$all_ws = array("LOVE", "World", "Your", "my", "etc", "CoDe");
var_dump( array_casecmp($all_ws,$obs_ws) );