# PHP验证码

**Repository Path**: lushaoming/php-captcha

## Basic Information

- **Project Name**: PHP验证码
- **Description**: 简单的验证码生成工具，支持简单字符（字母数字）和简单的数学计算（两位数以内的加减乘除，乘法不会两个数字都是两位数，除法是必须整除）
- **Primary Language**: Unknown
- **License**: Apache-2.0
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2024-11-28
- **Last Updated**: 2024-11-28

## Categories & Tags

**Categories**: Uncategorized

**Tags**: 验证码

## README

# PHP验证码生成器

## 要求
- PHP >= 8.1
- gd2
- mbstring

## 安装
```bash
composer require yolo/captcha
```

## 使用

```php
<?php

use Yolo\Captcha\Captcha;
use Yolo\Captcha\Core\CaptchaEngine;

require_once __DIR__ . '/../../vendor/autoload.php';

// Global config
Captcha::setConfig([
    'height' => 50,
    'width' => 250,
    'length' => 6, // only for character engine
    'font' => __DIR__ . '/fonts/Arial.ttf',
    'fontSize' => 25,
    'quality' => 0, // 0-9, No effect now
    'backgroundColor' => [255, 255, 255],
    'fontColor' => [0, 0, 0], // No effect now
    'engine' => CaptchaEngine::CHARACTER, // or CaptchaEngine::SIMPLE_ARITHMETIC
]);

$captcha = new Captcha();

$image = $captcha->createCaptcha();

imagepng($image, __DIR__ . '/captcha.png');

// Set the content type and output the image
//header('Content-Type: image/png');
//imagepng($image);

$captcha->destroyCaptcha($image);

// Get the captcha answer
$answer = $captcha->getCaptchaAnswer();
```