« SplHeap::extract SplHeap::isCorrupted » PHP Manual SplHeap Inserts an element in the heap by sifting it up SplHeap::insert (PHP 5 >= 5.3.0, PHP 7) SplHeap::insert — Inserts an element in the heap by sifting it up 说明 public SplHeap::insert ( mixed $value ) : void Insert value in the heap. 参数 value The value to insert. 返回值 没有返回值。