init

core/extend/code/Code.php

@@ -0,0 +1,112 @@
+<?php
+/**
+ * @copyright (C)2016-2099 Hnaoyun Inc.
+ * @author XingMeng
+ * @email hnxsh@foxmail.com
+ * @date 2016年12月16日
+ *  验证码生成类 
+ */
+namespace core\extend\code;
+
+class Code
+{
+
+    // 随机因子
+    public $charset = 'ABCDEFGHKMNPRTUVWXY23456789';
+
+    // 指定字体大小
+    public $fontsize = 18;
+
+    // 验证码长度
+    public $codelen = 4;
+
+    // 宽度
+    public $width = 130;
+
+    // 高度
+    public $height = 50;
+
+    // 验证码
+    private $code;
+
+    // 图形资源句柄
+    private $img;
+
+    // 指定的字体
+    private $font;
+
+    // 指定字体颜色
+    private $fontcolor;
+
+    // 构造方法初始化
+    public function __construct()
+    {
+        $this->font = dirname(__FILE__) . '/elephant.ttf';
+    }
+
+    // 生成随机码
+    private function createCode()
+    {
+        $this->charset = str_shuffle($this->charset);
+        $_len = strlen($this->charset) - 1;
+        for ($i = 0; $i < $this->codelen; $i ++) {
+            $this->code .= $this->charset[mt_rand(0, $_len)];
+        }
+    }
+
+    // 生成背景
+    private function createBg()
+    {
+        $this->img = imagecreatetruecolor($this->width, $this->height);
+        $color = imagecolorallocate($this->img, mt_rand(200, 255), mt_rand(200, 255), mt_rand(200, 255));
+        imagefilledrectangle($this->img, 0, $this->height, $this->width, 0, $color);
+    }
+
+    // 生成文字
+    private function createFont()
+    {
+        $_x = ($this->width - 10) / $this->codelen;
+        for ($i = 0; $i < $this->codelen; $i ++) {
+            $this->fontcolor = imagecolorallocate($this->img, mt_rand(0, 100), mt_rand(0, 100), mt_rand(0, 100));
+            imagettftext($this->img, $this->fontsize, mt_rand(- 20, 20), $_x * $i + $_x / 3, $this->height / 1.4, $this->fontcolor, $this->font, $this->code[$i]);
+        }
+    }
+
+    // 生成线条、雪花
+    private function createLine()
+    {
+        for ($i = 0; $i < 6; $i ++) {
+            $color = imagecolorallocate($this->img, mt_rand(100, 200), mt_rand(100, 200), mt_rand(100, 200));
+            imageline($this->img, mt_rand(0, $this->width), mt_rand(0, $this->height), mt_rand(0, $this->width), mt_rand(0, $this->height), $color);
+        }
+        for ($i = 0; $i < 100; $i ++) {
+            $color = imagecolorallocate($this->img, mt_rand(200, 255), mt_rand(200, 255), mt_rand(200, 255));
+            imagestring($this->img, mt_rand(1, 5), mt_rand(0, $this->width), mt_rand(0, $this->height), '*', $color);
+        }
+    }
+
+    // 输出
+    private function outPut()
+    {
+        header('Content-type:image/png');
+        imagepng($this->img);
+        imagedestroy($this->img);
+    }
+
+    // 对外生成
+    public function doimg()
+    {
+        @ob_clean(); // 清理图片输出前内容，避免生成错误！
+        $this->createBg();
+        $this->createCode();
+        $this->createLine();
+        $this->createFont();
+        $this->outPut();
+    }
+
+    // 获取验证码
+    public function getCode()
+    {
+        return strtolower($this->code);
+    }
+}