tp5-验证码
<img src="{:captcha_src()}" alt="captcha" />
'captcha' => [ 'fontSize' => 18, 'imageH' => 30, 'imageW' =>100, 'length' => 5, 'reset' => true ]
<img onclick="this.src='{:captcha_src()}?'+Math.random()" src="{:captcha_src()}" alt="captcha" />
namespace app\admin\controller; use think\Controller; use app\admin\model\Admin; class Login extends Controller { public function index() { if(request()->isPost()){ $admin = new Admin(); $data=input('post.'); if($admin->login($data)==3){ $this->success("信息正确,正在为您跳转",'index/index'); }else if($admin->login($data)==4){ $this->error('验证码错误'); } else{ $this->error("用户名或密码错误"); } } return $this->fetch(); } }