unid 是一个可以生成唯一ID的php扩展,此扩展基于 Twitter Snowflake 算法。有兴趣可以了解一下这个算法: https://github.com/twitter/snowflake
功能列表:
// 1) Get the next unique ID. string unid_next_id(void); // 2) Change unique ID to time stamp. int unid_get_time(string id); // 3) Change unique ID to worker id. array unid_get_worker_id(string id);
<?php $id = unid_next_id(); echo $id; $time = unid_get_time($id); echo 'date time is: ' . date('Y-m-d H:i:s', $time); $worker_id = unid_get_worker_id(); echo 'worker id is: ' . $worker_id; ?>
安装:
$ cd ./unid $ phpize $ ./configure $ make $ sudo make install
[unid] unid.datacenter = int unid.twepoch = uint64