先安装xdebug

参考：https://blog.csdn.net/nece001/article/details/112713712

xdebug的这一项配置必须要有coverage，逗号间不能有空格！
xdebug.mode = debug,coverage

代码覆盖率

参考文档：（代码已过时，我在下面做了修改）
https://blog.csdn.net/galen2016/article/details/82791856

安装php-code-coverage

代码仓库：https://github.com/sebastianbergmann/php-code-coverage

安装命令：

composer require phpunit/php-code-coverage

在根目录新增一个prepend.php

<?php/*** Created by PhpStorm.* User: 灵枢* Date: 2018/9/5* Time: 下午5:02*/
require_once dirname(__FILE__) . '/vendor/autoload.php';use SebastianBergmann\CodeCoverage\CodeCoverage;
use SebastianBergmann\CodeCoverage\Driver\Xdebug3Driver;
use SebastianBergmann\CodeCoverage\Filter;$filter = new Filter;
$filter->includeDirectory('/path/to/directory');// 实例初始化做了修改
$coverage = new CodeCoverage((new Xdebug3Driver($filter)),$filter
);$coverage->start('<Site coverage>'); #开始统计
register_shutdown_function('__coverage_stop', $coverage); #注册关闭方法function __coverage_stop(CodeCoverage $coverage)
{$coverage->stop(); #停止统计$writer = new \SebastianBergmann\CodeCoverage\Report\Html\Facade;# 设置生成代码覆盖率页面的路径$writer->process($coverage, dirname(__FILE__) . '/coverage_html');
}

新建文件echoNumber.php，用来测试的覆盖率

<?php/*** Created by PhpStorm.* User: 灵枢* Date: 2018/8/31* Time: 下午3:18*/
include_once("prepend.php");
class echoNumber
{function add($a, $b){echo $a + $b . PHP_EOL;}function jian($a, $b){echo $a - $b . PHP_EOL;}function cheng($a, $b){echo $a * $b . PHP_EOL;}function chu($a, $b){echo $a / $b . PHP_EOL;}function call($a, $b){$this->add($a, $b);}
}$f = new echoNumber();
$f->add(3, 4);
$f->cheng(2, 3);
$f->call(5, 6);