Try this:
$condition= "aa,bb,cc";
$provided= "aa,dd";
$array1 = explode(",",$condition);
$array2 = explode(",",$provided);
echo "Unfilled: " . implode(",",array_udiff($array1,$array2, "strcasecmp"));
echo "<br />";
echo "Extra Provided: " . implode(",",array_udiff($array2, $array1, "strcasecmp"));
/*
Unfilled: bb,cc
Extra Provided: dd
*/
diafol
Keep Smiling
10,665 posts since Oct 2006
Reputation Points: 1,628
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diafol
Keep Smiling
10,665 posts since Oct 2006
Reputation Points: 1,628
Solved Threads: 1,514
Skill Endorsements: 57