xhprof – PHP性能追踪及分析工具
最后更新于：2022-04-02 02:24:53
[TOC]
> 由于pear 版本不支持 php7 使用 github 的版本
> [https://github.com/longxinH/xhprof](https://github.com/longxinH/xhprof)
## 安装
1. 安装
```
git clone https://github.com/longxinH/xhprof.git ./xhprof
cd xhprof/extension/
/path/to/php7/bin/phpize
./configure --with-php-config=/path/to/php7/bin/php-config
make && sudo make install
sudo yum install -y graphviz
```
2. 配置
```
[xhprof]
extension = xhprof.so
xhprof.output_dir = /vagrant/xhprof/output
```
> 注意生成目录的权限问题
> 配置好后重启nginx 和php-fpm
## demo
```
xhprof_enable();
/*==================start index.php 文件==================*/
define('APPLICATION_PATH', dirname(__FILE__));
$application = new Yaf_Application( APPLICATION_PATH . "/conf/application.ini");
$application->bootstrap()->run();
/*==================end==================*/
$xhprof_data = xhprof_disable();
print_r($xhprof_data);
include_once APPLICATION_PATH. "/application/library/ThirdParty/xhprof_lib/utils/xhprof_lib.php";
include_once APPLICATION_PATH. "/application/library/ThirdParty/xhprof_lib/utils/xhprof_runs.php";
// save raw data for this profiler run using default
// implementation of iXHProfRuns.
$xhprof_runs = new XHProfRuns_Default();
// save the run under a namespace "xhprof_foo"
$run_id = $xhprof_runs->save_run($xhprof_data, "xhprof_foo");
echo "---------------\n".
"Assuming you have set up the http based UI for \n".
"XHProf at some address, you can view run at \n".
"http:///index.php?run=$run_id&source=xhprof_foo\n".
"---------------\n";
```
## 显示性能文件
**需要把github 项目中的 `xhprof_html` 目录 和`xhprof_lib` 放到项目的根目录中**
此时生成的`xhprof_foo` 文件 可以通过`xhprof_html`访问到
';