yii 验证码不显示图片怎么办

yii 验证码不显示图片怎么办？

yii2中验证码的使用-图片不显示

推荐学习：yii框架

1.控制器中

public function actions()     {         return [             'captcha' => [                 'class' => 'yiicaptchaCaptchaAction',                 'fixedVerifyCode' => YII_ENV_TEST ? 'testme' : null,             ],         ];     }

2.模型中

要有一个验证码的字段$verifyCode

3.视图中

use yiihelpersHtml; use yiiwidgetsActiveForm; use yiicaptchaCaptcha;

自动生成表单

页面中验证码代码

<?= $form->field($model, 'verifyCode')->widget(Captcha::className(), [                     'template' => '<div class="row"><div class="col-lg-3">{image}</div><div class="col-lg-6">{input}</div></div>', ]) ?>

控制器中的权限可能导致验证码图片不显示，

public function behaviors()

{

return [

'access' => [

'class' => AccessControl::className(),

'only' => ['logout', 'signup','login'],

'rules' => [

[

'actions' => ['signup'],

'allow' => true,

'roles' => ['?'],

],

[

'actions' => ['logout'],

'allow' => true,

'roles' => ['@'],

],

],

],

'verbs' => [

'class' => VerbFilter::className(),

'actions' => [

'logout' => ['post'],

],

],

];

}

控制器中红线部分缺少则导致验证码不显示。