« SplPriorityQueue::count SplPriorityQueue::extract » PHP Manual SplPriorityQueue Return current node pointed by the iterator SplPriorityQueue::current (PHP 5 >= 5.3.0, PHP 7) SplPriorityQueue::current — Return current node pointed by the iterator 说明 public SplPriorityQueue::current ( void ) : mixed Get the current datastructure node. 参数 此函数没有参数。 返回值 The value or priority (or both) of the current node, depending on the extract flag.