public function deleteCollections($collections)
    {
        if (is_array($collections)) {
            foreach($collections as $coll) {
                $pos = array_search($coll, $this->collections);
                if($pos !== FALSE) {
                    array_splice($this->collections, $pos, 1);
                }
            }
        } else {
            $pos = array_search($collections, $this->collections);
            if($pos !== FALSE) {
                array_splice($this->collections, $pos, 1);
            }
        }
        return $this;
    }
public function deleteCollections($collections)
    {
        if (is_array($collections)) {
            foreach($collections as $coll) {
                $pos = array_search($coll, $this->collections);
                if($pos !== FALSE) {
                    array_splice($this->collections, $pos, 1);
                }
            }
        } else {
            $pos = array_search($collections, $this->collections);
            if($pos !== FALSE) {
                array_splice($this->collections, $pos, 1);
            }
        }
        return $this;
    }
public function deleteCollections ( $ collections ) { if ( is_array ( $ collections ) ) { foreach ( $ collections as $ coll ) { $ pos = array_search ( $ coll , $ this -> collections ) ; if ( $ pos !== FALSE ) { array_splice ( $ this -> collections , $ pos , 1 ) ; } } } else { $ pos = array_search ( $ collections , $ this -> collections ) ; if ( $ pos !== FALSE ) { array_splice ( $ this -> collections , $ pos , 1 ) ; } } return $ this ; }
Delete collections metadata.

@param array|string $collections An array of collection strings or a collection string.
@return Metadata $this
Delete collections metadata .