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                前面提到驗證碼的使用,但是你會發現點擊切換驗證碼之后,會提示‘驗證碼錯誤’;這是因為tp5.0.2自帶的驗證碼類自大的參數$id,默認為空,但是當你點擊切換驗證碼后,$id參數會默認為0,而且會累加 ,所以會永遠匹配不上。這里我們也不用去修改框架本身的內容;只需坐這樣的修改就可以使用了; index.php文件 <?php namespace app\admin\controller; class Index extends Common { /* * 首頁 */ public function index(){ return view(); } /* * 登錄 */ public function login(){ if (request()->isPost()) { $captcha = input('post.code') ? input('post.code') : $this->error('請輸入驗證碼!'); if (!captcha_check($captcha, 'admin')) { $this->error('驗證碼錯誤!'); } else { $this->success('登錄成功', 'index'); } } else { return view(); } } } login.html文件 //引用驗證碼,添加$id 識別admin; <img id="code_img" align="top" src="{:captcha_src($id = 'admin')}"> <script> //jquery,js點擊切換驗證碼 $(function() { $('#code_img').click(function() { var imgUrl = $(this).attr('src'); imgUrl = imgUrl.substr(imgUrl.indexOf('/captcha', imgUrl), 14) + '/' +Math.random()+'.html'; $(this).attr('src', imgUrl); }); }) </script> 這樣,驗證碼類已經完美使用
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