今天在嘗試把SplPriorityQueue
對象序列化並反序列化後,遇到了問題。反序列化後在隊列裏的數據全沒了,這讓我很傷心。php
<?php $pq = new SplPriorityQueue; $pq->insert('imi 基於 Swoole 常駐內存協程開發框架', 100); $pq->insert('https://gitee.com/yurunsoft/IMI', 200); $pq->insert('https://github.com/Yurunsoft/IMI', 300); var_dump($pq->count()); $serialize = serialize($pq); var_dump($serialize); $unserialize = unserialize($serialize); var_dump($unserialize->count());
結果:git
int(3) string(28) "O:16:"SplPriorityQueue":0:{}" int(0)
莫得辦法,本身動手豐衣足食吧!經過自定義類繼承SplPriorityQueue
並實現Serializable
接口,來本身處理序列化和反序列化數據。github
解決問題的代碼以下:框架
class PriorityQueue extends \SplPriorityQueue implements \Serializable { public function serialize() { return serialize(iterator_to_array(clone $this)); } public function unserialize($serialized) { $array = unserialize($serialized); foreach($array as $p => $v) { $this->insert($v, $p); } } } $pq = new PriorityQueue; $pq->insert('imi 基於 Swoole 常駐內存協程開發框架', 100); $pq->insert('https://gitee.com/yurunsoft/IMI', 200); $pq->insert('https://github.com/Yurunsoft/IMI', 300); var_dump($pq->count()); $serialize = serialize($pq); var_dump($serialize); $unserialize = unserialize($serialize); var_dump($unserialize->count());
結果:this
int(3) string(180) "C:13:"PriorityQueue":153:{a:3:{i:2;s:32:"https://github.com/Yurunsoft/IMI";i:1;s:31:"https://gitee.com/yurunsoft/IMI";i:0;s:48:"imi 基於 Swoole 常駐內存協程開發框架";}}" int(3)
完美解決~code