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Find a unique value in an array???
Posted: Wed Nov 13, 2013 12:41 am
by azycraze
Hi frnds, I have an array say
I just want to get the array index of 2 since it is the only distinct value in $a.
Is there any array functions to do this??
Re: Find a unique value in an array???
Posted: Wed Nov 13, 2013 2:10 am
by Eric!
You don't want any value that has been repeated, right? Do you want to preserve the keys? If not, you could do something like this:
Code: Select all
function arrayUnique($array)
{
$result=array();
$duplicates=array_unique(array_diff_assoc($array,array_unique($array)));
foreach($array as $value){
if(!in_array($value,$duplicates)) $result[]=$value;
}
return $result;
}
Example:
Code: Select all
$arr1 = array('1','2','1','1','1','4');
$result=arrayUnique($arr1);
print_r($result);
[text]Array
(
[0] => 2
[1] => 4
)[/text]