version 1.0

Author: rezaei121

CaptchaAction.php

@@ -4,10 +4,9 @@
 
 class CaptchaAction extends \yii\captcha\CaptchaAction
 {
-    public $minLength = 4;
-    public $maxLength = 9;
-    public $fontFile = '@yii/captcha/SpicyRice.ttf';
+    public $fontFile = '@developit/captcha/font/LithosPro-Regular.otf';
     public $foreColor = 0x999999;
+    public $type = 'default'; // numbers & letters
 
     protected function generateVerifyCode()
     {
@@ -21,10 +20,21 @@ protected function generateVerifyCode()
             $this->maxLength = 9;
         }
         $length = mt_rand($this->minLength, $this->maxLength);
-        $numbers = '0123456789';
+
+        $str = '0123456789bcdfghjklmnpqrstvwxyz';
         $code = '';
         for ($i = 0; $i < $length; $i++) {
-            $code .= $numbers[mt_rand(0, 9)];
+            switch ($this->type)
+            {
+                case 'numbers':
+                    $code .= $str[mt_rand(0, 9)];
+                    break;
+                case 'letters':
+                    $code .= $str[mt_rand(10, 30)];
+                    break;
+                default:
+                    $code .= $str[mt_rand(0, 30)];
+            }
         }
 
         return $code;

README.md

@@ -1,6 +1,7 @@
 yii2 captcha
 ============
-yii2 numeric captcha
+
+![screenshot](http://www.developit.ir/tmp/yii2-captcha.jpg)
 
 Installation
 ------------
@@ -10,13 +11,13 @@ The preferred way to install this extension is through [composer](http://getcomp
 Either run
 
 ```
-php composer.phar require --prefer-dist developit/yii2-captcha "dev-master"
+php composer.phar require --prefer-dist developit/yii2-captcha "~1.0"
 ```
 
 or add
 
 ```
-"developit/yii2-captcha": "dev-master"
+"developit/yii2-captcha": "~1.0"
 ```
 
 to the require section of your `composer.json` file.
@@ -25,7 +26,29 @@ to the require section of your `composer.json` file.
 Usage
 -----
 
-Once the extension is installed, simply use it in your code by  :
+Once the extension is installed, simply modify your controler, add or change methode `actions()`:
 
 ```php
-<?= \developit\captcha\CaptchaAction; ?>```
+    public function actions()
+    {
+        $this->layout = $this->setting['layout'];
+        return [
+            'error' => [
+                'class' => 'yii\web\ErrorAction',
+            ],
+            'captcha' => [
+                'class' => 'developit\captcha\CaptchaAction',
+                'type' => 'numbers', // 'numbers', 'letters' or 'default' (contains numbers & letters)
+                'minLength' => 4,
+                'maxLength' => 4,
+            ],
+        ];
+    }
+```
+
+In view
+```php
+<?=
+$form->field($model, 'verifyCode')->widget(Captcha::className())
+?>
+