PHP SPL标准库

先MARK有时间再好好看

//栈，先进后出
$stack = new SplStack();
$stack->push("data1\n");
$stack->push("data2\n");
echo $stack->pop();
echo $stack->pop();

//队列，先进先出
$queue = new SplQueue();
$queue->enqueue("data3\n");
$queue->enqueue("data4\n");
echo $queue->dequeue();
echo $queue->dequeue();

//堆
$heap = new SplMinHeap();
$heap->insert("data5\n");
$heap->insert("data6\n");
echo $heap->extract();
echo $heap->extract();

//固定尺寸的数组
$array = new SplFixedArray(10);
$array[0] = 123;
$array[9] = 1234;
var_dump($array);