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                # 驗證碼 #### 1.生成驗證碼 ######生成驗證碼的函數: ```php sp_verifycode_img($imgparam,$imgattrs); ``` ######參數: `$imgparam`:控制驗證碼的樣式,(默認值length=4&font_size=20&width=238&height=50&use_curve=1&use_noise=1) `$imgattrs`:生成的驗證碼img標簽的原生屬性,除src,onclick之外都可以設置,(默認值:style="cursor: pointer;" title="點擊獲取") ######返回: 包括驗證碼的html代碼 ######模板里使用: ```php <!--輸出一個驗證碼--> {:sp_verifycode_img('length=4&font_size=14&width=100&height=34&charset=2345678&use_noise=1&use_curve=0')} <!--輸出結果--> <img class="verify_img" src="/index.php?g=api&m=checkcode&a=index&length=4&font_size=14&width=100&height=34&charset=2345678&use_noise=1&use_curve=0" onclick="this.src='/index.php?g=api&m=checkcode&a=index&length=4&font_size=14&width=100&height=34&charset=2345678&use_noise=1&use_curve=0&time='+Math.random();" style="cursor: pointer;" title="點擊獲取"/> <!--你可以在任何一個需要驗證碼的表單里生成一個驗證碼,同時為它增加一個name為vefify 的 input--> <input type="text" id="input_verify" name="verify" placeholder="驗證碼" class="form-control"> ``` ######一個帶驗證碼的表單 ```php <!--這是一個完整的ThinkCMF登錄的表單--> <h2 class="text-center">用戶登錄</h2> <form class="form-horizontal js-ajax-forms" action="{:U('user/login/dologin')}" method="post"> <div class="form-group"> <input type="text" id="input_username" name="username" placeholder="手機號/郵箱/用戶名" class="form-control"> </div> <div class="form-group"> <input type="password" id="input_password" name="password" placeholder="密碼" class="form-control"> </div> <div class="form-group"> <div class="row"> <div class="col-md-6"> <input type="text" id="input_verify" name="verify" placeholder="驗證碼" class="form-control"> </div> <div class="col-md-6"> {:sp_verifycode_img('length=4&font_size=14&width=100&height=34&charset=2345678&use_noise=1&use_curve=0')} </div> </div> </div> <div class="form-group"> <input type="hidden" name="redirect" value="{:I('get.redirect','')}"> <button class="btn btn-primary btn-block js-ajax-submit" type="submit" style="margin-left: 0px">確定</button> </div> <div class="form-group" style="text-align: center;"> <ul class="list-inline"> <li><a href="{:leuu('user/register/index')}">現在注冊</a></li> <li><a href="{:U('user/login/forgot_password')}">忘記密碼</a></li> </ul> </div> </form> ``` ####2.驗證碼驗證 ######驗證驗證碼的函數: ```php sp_check_verify_code($verifycode='') ``` ######參數 `$verifycode`:要驗證的驗證碼,默認空 ######在控制器里使用 ```php <?php namespace User\Controller; use Common\Controller\HomebaseController; class LoginController extends HomebaseController { // 前臺用戶登錄 public function index() { //省略... } // 登錄驗證提交 public function dologin() { //如果表單里驗證碼input的name是verify,可以省略參數 //如果不是可以單獨獲取驗證碼傳入參數驗證 if (! sp_check_verify_code()) { $this->error("驗證碼錯誤!"); } //省略... } } ```
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