php扩展`xhprof` [https://www.php.net/manual/zh/book.xhprof.php](https://www.php.net/manual/zh/book.xhprof.php) [https://www.cnblogs.com/jkko123/p/10697575.html](https://www.cnblogs.com/jkko123/p/10697575.html)[https://blog.csdn.net/maquealone/article/details/80434699](https://blog.csdn.net/maquealone/article/details/80434699)