验证码相关组件
gregwar/captcha
项目地址 https://github.com/Gregwar/Captcha
安装
composer require gregwar/captcha 1.*
使用
建立文件 app/controller/Login.php
<?phpnamespace app\controller;use support\Request;use Gregwar\Captcha\CaptchaBuilder;class Login{/*** 测试页面*/public function index(Request $request){return view('login/index');}/*** 输出验证码图像*/public function captcha(Request $request){// 初始化验证码类$builder = new CaptchaBuilder;// 生成验证码$builder->build();// 将验证码的值存储到session中$request->session()->set('captcha', strtolower($builder->getPhrase()));// 获得验证码图片二进制数据$img_content = $builder->get();// 输出验证码二进制数据return response($img_content, 200, ['Content-Type' => 'image/jpeg']);}/*** 检查验证码*/public function check(Request $request){// 获取post请求中的captcha字段$captcha = $request->post('captcha');// 对比session中的captcha值if (strtolower($captcha) !== $request->session()->get('captcha')) {return json(['code' => 400, 'msg' => '输入的验证码不正确']);}return json(['code' => 0, 'msg' => 'ok']);}}
建立模版文件app/view/login/index.html
<!doctype html><html><head><meta charset="utf-8"><title>验证码测试</title></head><body><form method="post" action="/login/check"><img src="/login/captcha" /><br><input type="text" name="captcha" /><input type="submit" value="提交" /></form></body></html>
进入页面http://127.0.0.1:8787/login 界面类似如下:

