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                [TOC] # SPL標準庫 1. SplStack,SplQueue,SplHeap,SplFixedArray等數據結構類 2. ArrayIterator,AppendIterator,Countable,ArrayObject 3. SPL提供的函數 ## 數據結構類庫 1. 棧類 SplStack ``` $stack = new SplStack();//棧類,先進后出 $stack->push("data1\n");//進棧 $stack->push("data2\n"); echo $stack->pop();//出棧 echo $stack->pop(); ``` 2. 隊列 SplQueue ~~~ $queue = new SplQueue();//隊列,先進先出,后進后出 $queue->enqueue("data1\n");//進隊列 $queue->enqueue("data2\n"); echo $queue->dequeue();//出隊列 echo $queue->dequeue(); ~~~ 3. (最小)堆 SplMinHeap ~~~ $heap = new SplMinHeap();//最小堆,堆可以進行映射 //$heap = new SplMaxHeap();//最大堆 $heap->insert("data1\n");//存儲到堆 $heap->insert("data2\n"); echo $heap->extract();//從堆中提取 echo $heap->extract(); ~~~ 4. 固定長度的數組 SplFixedArray ~~~ $array = new SplFixedArray(10);//固定長度的數組 $array[0] = 123; $array[9] = 1234; var_dump($array); ~~~
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