项目第一次版本提交

2018-11-29 08:53:38 +08:00
commit ba30de2493
49 changed files with 12660 additions and 0 deletions
--- a/inclode/vcode.class.php
+++ b/inclode/vcode.class.php
@@ -0,0 +1,132 @@
+<?php
+
+
+class Vcode
+{
+    private $width;    //宽
+    private $height;   //高
+    private $num;       //数量
+    private $code;    //验证码
+    private $img;     //图像的资源
+
+
+    //构造方法， 三个参数
+    function __construct($width = 80, $height = 20, $num = 4)
+    {
+        $this->width = $width;
+        $this->height = $height;
+        $this->num = $num;
+        $this->code = $this->createcode(); //调用自己的方法
+    }
+
+
+    //获取字符的验证码， 用于保存在服务器中
+    function getcode()
+    {
+        return $this->code;
+    }
+
+
+    //输出图像
+    function outimg()
+    {
+        //创建背景 (颜色， 大小， 边框)
+        $this->createback();
+
+        //画字 (大小， 字体颜色)
+        $this->outstring();
+
+        //干扰元素(点， 线条)
+
+        $this->setdisturbcolor();
+        //输出图像
+        $this->printimg();
+    }
+
+    //创建背景
+    private function createback()
+    {
+        //创建资源
+        $this->img = imagecreatetruecolor($this->width, $this->height);
+        //设置随机的背景颜色
+        $bgcolor = imagecolorallocate($this->img, rand(225, 255), rand(225, 255), rand(225, 255));
+        //设置背景填充
+        imagefill($this->img, 0, 0, $bgcolor);
+        //画边框
+        $bordercolor = imagecolorallocate($this->img, 0, 0, 0);
+
+        imagerectangle($this->img, 0, 0, $this->width - 1, $this->height - 1, $bordercolor);
+    }
+
+    //画字
+    private function outstring()
+    {
+        for ($i = 0; $i < $this->num; $i++) {
+
+            $color = imagecolorallocate($this->img, rand(0, 128), rand(0, 128), rand(0, 128));
+
+            $fontsize = rand(3, 5);  //字体大小
+
+            $x = 3 + ($this->width / $this->num) * $i; //水平位置
+            $y = rand(0, imagefontheight($fontsize) - 3);
+
+            //画出每个字符
+            imagechar($this->img, $fontsize, $x, $y, $this->code{$i}, $color);
+        }
+    }
+
+    //设置干扰元素
+    private function setdisturbcolor()
+    {
+        //加上点数
+        for ($i = 0; $i < 1; $i++) {
+            $color = imagecolorallocate($this->img, rand(0, 255), rand(0, 255), rand(0, 255));
+            imagesetpixel($this->img, rand(1, $this->width - 2), rand(1, $this->height - 2), $color);
+        }
+
+        //加线条
+        for ($i = 0; $i < 1; $i++) {
+            $color = imagecolorallocate($this->img, rand(0, 255), rand(0, 128), rand(0, 255));
+            imagearc($this->img, rand(-10, $this->width + 10), rand(-10, $this->height + 10), rand(30, 300), rand(30, 300), 55, 44, $color);
+        }
+    }
+
+    //输出图像
+    private function printimg()
+    {
+        if (imagetypes() & IMG_GIF) {
+            header("Content-type: image/gif");
+            imagegif($this->img);
+        } elseif (function_exists("imagejpeg")) {
+            header("Content-type: image/jpeg");
+            imagegif($this->img);
+        } elseif (imagetypes() & IMG_PNG) {
+            header("Content-type: image/png");
+            imagegif($this->img);
+        } else {
+            die("No image support in this PHP server");
+        }
+
+    }
+
+    //生成验证码字符串
+    private function createcode()
+    {
+        $codes = "3456789abcdefghijkmnpqrstuvwxyABCDEFGHIJKLMNPQRSTUVWXY";
+
+        $code = "";
+
+        for ($i = 0; $i < $this->num; $i++) {
+            $code .= $codes{rand(0, strlen($codes) - 1)};
+        }
+
+        return $code;
+    }
+
+    //用于自动销毁图像资源
+    function __destruct()
+    {
+        imagedestroy($this->img);
+    }
+
+}