Home > php教程 > php手册 > ThinkPHP5如何实现验证码的效果

ThinkPHP5如何实现验证码的效果

PHPz
Release: 2018-10-19 16:20:24
forward
1099 people have browsed it

这篇文章主要和大家分享了ThinkPHP5的验证码的实现方法,有一定的参考价值,感兴趣的朋友可以看看。

 1、首先确认文件夹\vendor\topthink\think-captcha存在

abggg.jpg

2、显示验证码的方法,我这里是写在:\application\admin\controller\Login.php

//显示验证码
    public function show_captcha(){
        $captcha = new \think\captcha\Captcha();
        $captcha->imageW=121;
        $captcha->imageH = 32;  //图片高
        $captcha->fontSize =14;  //字体大小
        $captcha->length   = 4;  //字符数
        $captcha->fontttf = '5.ttf';  //字体
        $captcha->expire = 30;  //有效期
        $captcha->useNoise = false;  //不添加杂点
        return $captcha->entry();
    }
Copy after login

3、模板文件\application\admin\view\Login\index.html中这样引用验证码

<form action="/login/login_post" method="post">
<input type="text" class="input" name="captcha" placeholder="填写右侧的验证码" data-validate="required:请填写右侧的验证码"  style="width: 200px;"/>
                                <img src="/login/show_captcha" alt="" width="121" height="32" class="passcode" onclick="this.src=this.src+&#39;?&#39;"/>
Copy after login

4、同控制器中login_post方法

//提交
    public function login_post(){
        $code=input('post.captcha');
        $captcha = new \think\captcha\Captcha();
        $result=$captcha->check($code);
        if($result===false){
            echo '验证码错误';exit;
        }
        echo '验证码正确,继续';exit;
    }
Copy after login

这样就完成了thinkphp5中的验证码操作,有图有真相

 abvvvaaa.jpg

【相关教程推荐】

1. php编程从入门到精通全套视频教程
2. php从入门到精通 
3. bootstrap教程

Related labels:
source:csdn.net
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Popular Recommendations
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template