php: check if an array has duplicates

Question

I\'m sure this is an extremely obvious question, and that there\'s a function that does exactly this, but I can\'t seem to find it. In PHP, I\'d like to know if my array has

Answer 1

Keep it simple, silly! ;)

Simple OR logic...

function checkDuplicatesInArray($array){
    $duplicates=FALSE;
    foreach($array as $k=>$i){
        if(!isset($value_{$i})){
            $value_{$i}=TRUE;
        }
        else{
            $duplicates|=TRUE;          
        }
    }
    return ($duplicates);
}

Regards!