Toolkit sharing: PHP implements slider verification pictures

This article mainly introduces how to implement slider verification pictures in PHP. Here I share a toolkit "poster". Let's see how to implement it. I hope it will be helpful to friends in need!

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Installation

composer require kkokk/poster

Update

composer update kkokk/poster

Usage documentation

Open source repository:
gitee documentation
github documentation

    use Kkokk\Poster\PosterManager;
    use Kkokk\Poster\Exception\PosterException;

    try {
        # Toolkit sharing: PHP implements slider verification pictures自定义参数
        $params = [
            'src'           => '',  // 背景图片，尺寸 340 * 191
            'im_width'      => 340, // 画布宽度
            'im_height'     => 251, // 画布高度
            'bg_width'      => 340, // 背景宽度
            'bg_height'     => 191, // 背景高度
            'slider_width'  => 50,  // Toolkit sharing: PHP implements slider verification pictures宽度
            'slider_height' => 50,  // Toolkit sharing: PHP implements slider verification pictures高度
            'slider_border' => 2,   // Toolkit sharing: PHP implements slider verification pictures边框
        ];

        $type = 'slider';

        /**
          * 获取Toolkit sharing: PHP implements slider verification pictures验证参数
          * 内部使用了 laravel 的 cache 缓存，返回的是图片的 base64 、 缓存key 、Toolkit sharing: PHP implements slider verification pictures高度
          * @param string $type   验证码类型
          * @param array  $params 验证码自定义参数
          * @return arary
          */
        $data = PosterManager::Captcha()->type($type)->config($params)->get();

        /** 
          * 验证Toolkit sharing: PHP implements slider verification pictures
          * 前端根据相关Toolkit sharing: PHP implements slider verification pictures操作进行处理, 返回x坐标，返回 true 则验证成功
          * @param string     $key     缓存key
          * @param string|int $value   前端传回来的x坐标
          * @param int        $leeway  误差值
          * @return boolean
          */
        $res = PosterManager::Captcha()->type($type)->check($key, $value, $leeway);

    } catch (PosterException $e) {
        print_r($e->getMessage())
    }

Example

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