SPLでよく使われるデータ構造をphpで詳しく解説

<span style="font-size:18px;">$stack = new SplStack();  
$stack->push(&#39;data1&#39;);  
$stack->push(&#39;data2&#39;);  
$stack->push(&#39;data3&#39;);  
echo $stack->pop();  
  
//输出结果为  
//data3</span><span style="font-size:24px;font-weight: bold;">  
</span>

<span style="font-size:18px;">$queue = new SplQueue();  
$queue->enqueue("data1");  
$queue->enqueue("data2");  
$queue->enqueue("data3");  
echo $queue->dequeue();  
//输出结果为  
//data1</span>

<span style="font-size:18px;">$heap = new SplMinHeap();  
$heap->insert("data1");  
$heap->insert("data2");  
echo $heap->extract();  
//输出结果为  
//data1</span>