README

安装

1. 使用 composer 安装包：composer require nbykov/calculate-bundle

2. 添加路由

calculate:
    resource: "@CalculateBundle/Controller/CalculateController.php"
    prefix: /
    type: annotation

3. 创建自己的服务（如 src/Service/Calculate.php）

<?php

namespace App\Service;

use nbykov\CalculateBundle\Entity\LocalExpression;
use nbykov\CalculateBundle\Service\CalculateServiceInterface;

class CalculateService implements CalculateServiceInterface
{
    public function calculate(string $expression): float
    {
        $expression = new LocalExpression($expression);
        return $expression->calculate();
    }
}

使用方法

简单地向 /calculate 发送 POST 请求，例如

POST /calculate HTTP/1.1
Host: <your host>
Content-Type: application/json
Accept: */*
Cache-Control: no-cache
Accept-Encoding: gzip, deflate
Content-Length: 34
Connection: keep-alive
cache-control: no-cache

{
	"expression" : "(10*2-6)/3+5"
}

然后您将收到如下响应

{
    "message": "Expression should consist of digits, dots, brackets and math operations"
}

或者

{
    "result": 8
}

额外功能

您可以计算表达式链的结果

$calculator  = new ExpressionCalculator();
$result = $calculator->add(new LocalExpression('...'))
    ->divide(new LocalExpression('...'))
    ->multiply(new LocalExpression('...'))
    ->calculate();