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Informations about the package think-captcha-1.1

think-captcha-1.1

thinkphp5.0 验证码类库(修改版)

修改部分,新增cache缓存存储验证码信息(便于api接口调用使用)

安装

composer require gitzwt/think-captcha-1.1

/**
     * 获取图片验证码(接口调用示例,type为cache时)
     * @return \think\response\Json
     */
    public function getCaptcha()
    {
        $captcha_id = Strs::randString(4, 1) . date('s'); //生成随机id
        //接口构建类的返回
        return $this->buildSuccess([
            'CaptchaId' => (String)$captcha_id, //captcha_id
            'CaptchaSrc' => $this->request->domain() . captcha_src($captcha_id) //验证码url
        ]);
    }

使用

extra子目录内配置 captcha.php

参数 描述 默认
codeSet 验证码字符集合 略
expire 验证码过期时间（s） 1800
useZh 使用中文验证码 false
zhSet 中文验证码字符串 略
useImgBg 使用背景图片 false
fontSize 验证码字体大小(px) 25
useCurve 是否画混淆曲线 true
useNoise 是否添加杂点 true
imageH 验证码图片高度，设置为0为自动计算 0
imageW 验证码图片宽度，设置为0为自动计算 0
length 验证码位数 5
fontttf 验证码字体，不设置是随机获取 空
bg 背景颜色 [243, 251, 254]
reset 验证成功后是否重置 true
type 验证码存储驱动类型,支持session和cache 默认cache

模板里输出验证码

<div>{:captcha_img()}</div>

或者

<div><img src="{:captcha_src()}" alt="captcha" /></div>

上面两种的最终效果是一样的

控制器里验证

使用TP5的内置验证功能即可

$this->validate($data,[
    'captcha|验证码'=>'required|captcha'
]);

或者手动验证

if(!captcha_check($captcha)){
 //验证失败
};

具体使用参照tp5.0完全开发手册验证码部分

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