## langleyfoxall / math_eval

✖️➕➖➗ `math_eval` safely evaluates mathematical expressions

Installs: 230 458

Dependents: 4

Suggesters: 0

Security: 0

Stars: 38

Watchers: 2

Forks: 6

Open Issues: 3

Requires

- php: >=5.6
- mossadal/math-parser: ^1.3

Requires (Dev)

- fzaninotto/faker: ^1.6
- php-coveralls/php-coveralls: ^2.0
- phpunit/phpunit: ^5.7

This package is auto-updated.

Last update: 2023-03-20 16:13:35 UTC

# README

This PHP package provides a `math_eval`

helper function, that
allows safe evaluation of mathematical expressions, without the use of the
potentially dangerous `eval`

function.

## Installation

The `math_eval`

package can be easily installed using Composer. Just
run the following command from the root of your project.

```
composer require "langleyfoxall/math_eval"
```

If you have never used the Composer dependency manager before, head to the Composer website for more information on how to get started.

## Usage

To evaluate a basic mathematical expression, just pass its string
representation to the `math_eval`

function.

Here are some basic usage examples:

$two = math_eval('1 + 1'); $three = math_eval('5 - 2'); $ten = math_eval('2 * 5'); $four = math_eval('8 / 2');

It is also possible to pass expression variables. See the examples below.

$ten = math_eval('a + b', ['a' => 7, 'b' => 3]); $fifteen = math_eval('x * y', ['x' => 3, 'y' => 5]);

## Credit

This package makes use of the `mossadal/math-parser`

package.