[PHP] pobierz, plaintext 
$pieces = explode(",", '2,3,5,7,5,14,3,14');
[PHP] pobierz, plaintext 

[PHP] pobierz, plaintext 
function array_duplicates($array) {
 if(!is_array($array))
  return false;
 $duplicates = array();
 $unique = array_unique($array);
 if(count($array) > count($unique))
  for($i = 0; $i < count($array); $i++)
   if(!array_key_exists($i, $unique))
    $duplicates[] = $array[$i];
 return $duplicates;
}
[PHP] pobierz, plaintext 

[PHP] pobierz, plaintext 
$pieces = array_count_values($pieces);
function filtruj($wartosc) {
 
	return $wartosc>1;
}
$pieces = array_filter($pieces, 'filtruj');
$pieces = array_keys($pieces);
print_r($pieces);
[PHP] pobierz, plaintext 

[PHP] pobierz, plaintext 
$pieces = array(1,3,1,5,1,6);
[PHP] pobierz, plaintext