/**
* Removes all of this collection's elements that are also contained in the specified collection (optional operation).
* @param CollectionInterface $collection
*/
public function removeAll(CollectionInterface $collection)
{
$changed = false;
if ($this->size() > $collection->size()) {
$iterator = $collection->iterator();
while ($iterator->hasNext()) {
$element = $iterator->next();
if ($this->contains($element)) {
$this->remove($element);
$changed = true;
}
}
} else {
$iterator = $this->iterator();
while ($iterator->hasNext()) {
$element = $iterator->next();
if ($collection->contains($element)) {
$iterator->remove();
$changed = true;
}
}
}
return $changed;
}
/**
* Removes from this list all of its elements that
* are contained in the specified collection
* @param CollectionInterface $collection
* @return void
*/
public function removeAll(CollectionInterface $collection)
{
$this->array = array_values(array_diff($this->array, $collection->toArray()));
}