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# think-captcha
thinkphp5 验证码类库
## 安装
> composer require topthink/think-captcha
##使用
###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'=>'require|captcha'
]);
~~~
或者手动验证
~~~
if(!captcha_check($captcha)){
//验证失败
};
~~~