<?php//This is a PHP 无组件生成BMP验证码源程序，改自ASP无组件BMP验证码生成程序// Author: Wilson Chen// QQ: 36935338// Email: oeichenwei@yahoo.com
// 通过程序内嵌的"0-9A-Z"的BMP字型库生成真彩色BMP（当然也非常的小）// 为了尽可能的避免被crack，建议动态改变背景色，下载后适当变换字形库。// 为了便于处理，验证码的位数必须为偶数位，比如4、6、8....// 使用的时候把该文件保存为test.php, 引用<img src="test.php" alt="my picture">即可// Original Author: Layen// QQ: 84815733// E-mail: support@ssaw.netfunction validation($pSN){ // 禁止缓存 header("Expires: -9999"); header("Pragma: no-cache"); header("cache-ctrol: no-cache");// header("ContentType: Image/BMP"); header("ContentType: Image/BMP");
$cOdds = 8; //杂点出现的机率 $cAmount = 36;//文字数量 $cCode = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
// 颜色的数据(字符，背景) $vColorData[0] = "/x0/x0/x0"; //蓝0，绿0，红0（黑色） $vColorData[1] = "/xfa/xec/xd3"; //蓝250，绿236，红211（浅蓝色） $num = strlen($pSN);
//随机产生字符 for($i = 0; $i < $num; $i++) { $vCode[$i] = strpos($cCode, $pSN{$i}); }
// 字符的数据 $vNumberData[0] = "1110000111110111101111011110111101001011110100101111010010111101001011110111101111011110111110000111"; $vNumberData[1] = "1111011111110001111111110111111111011111111101111111110111111111011111111101111111110111111100000111"; $vNumberData[2] = "1110000111110111101111011110111111111011111111011111111011111111011111111011111111011110111100000011"; $vNumberData[3] = "1110000111110111101111011110111111110111111100111111111101111111111011110111101111011110111110000111"; $vNumberData[4] = "1111101111111110111111110011111110101111110110111111011011111100000011111110111111111011111111000011"; $vNumberData[5] = "1100000011110111111111011111111101000111110011101111111110111111111011110111101111011110111110000111"; $vNumberData[6] = "1111000111111011101111011111111101111111110100011111001110111101111011110111101111011110111110000111"; $vNumberData[7] = "1100000011110111011111011101111111101111111110111111110111111111011111111101111111110111111111011111"; $vNumberData[8] = "1110000111110111101111011110111101111011111000011111101101111101111011110111101111011110111110000111"; $vNumberData[9] = "1110001111110111011111011110111101111011110111001111100010111111111011111111101111011101111110001111"; $vNumberData[10] = "1111011111111101111111101011111110101111111010111111101011111100000111110111011111011101111000100011"; $vNumberData[11] = "1000000111110111101111011110111101110111110000111111011101111101111011110111101111011110111000000111"; $vNumberData[12] = "1110000011110111101110111110111011111111101111111110111111111011111111101111101111011101111110001111"; $vNumberData[13] = "1000001111110111011111011110111101111011110111101111011110111101111011110111101111011101111000001111"; $vNumberData[14] = "1000000111110111101111011011111101101111110000111111011011111101101111110111111111011110111000000111"; $vNumberData[15] = "1000000111110111101111011011111101101111110000111111011011111101101111110111111111011111111000111111"; $vNumberData[16] = "1110000111110111011110111101111011111111101111111110111111111011100011101111011111011101111110001111"; $vNumberData[17] = "1000100011110111011111011101111101110111110000011111011101111101110111110111011111011101111000100011"; $vNumberData[18] = "1100000111111101111111110111111111011111111101111111110111111111011111111101111111110111111100000111"; $vNumberData[19] = "1110000011111110111111111011111111101111111110111111111011111111101111111110111110111011111000011111"; $vNumberData[20] = "1000100011110111011111011011111101011111110001111111010111111101101111110110111111011101111000100011"; $vNumberData[21] = "1000111111110111111111011111111101111111110111111111011111111101111111110111111111011110111000000011"; $vNumberData[22] = "1000100011110010011111001001111100100111110101011111010101111101010111110101011111010101111001010011"; $vNumberData[23] = "1000100011110011011111001101111101010111110101011111010101111101100111110110011111011001111000110111"; $vNumberData[24] = "1110001111110111011110111110111011111011101111101110111110111011111011101111101111011101111110001111"; $vNumberData[25] = "1000000111110111101111011110111101111011110000011111011111111101111111110111111111011111111000111111"; $vNumberData[26] = "1110001111110111011110111110111011111011101111101110111110111011111011101001101111011001111110001011"; $vNumberData[27] = "1000001111110111011111011101111101110111110000111111010111111101101111110110111111011101111000110011"; $vNumberData[28] = "1110000011110111101111011110111101111111111001111111111001111111111011110111101111011110111100000111"; $vNumberData[29] = "1000000011101101101111110111111111011111111101111111110111111111011111111101111111110111111110001111"; $vNumberData[30] = "1000100011110111011111011101111101110111110111011111011101111101110111110111011111011101111110001111"; $vNumberData[31] = "1000100011110111011111011101111101110111111010111111101011111110101111111010111111110111111111011111"; $vNumberData[32] = "1001010011110101011111010101111101010111110101011111001001111110101111111010111111101011111110101111"; $vNumberData[33] = "1000100011110111011111101011111110101111111101111111110111111110101111111010111111011101111000100011"; $vNumberData[34] = "1000100011110111011111011101111110101111111010111111110111111111011111111101111111110111111110001111"; $vNumberData[35] = "1100000011110111011111111101111111101111111110111111110111111111011111111011111111101110111100000011";
// 输出图像文件头 $nFileSize = 54 + $num*300; print("/x42/x4d".chr(($nFileSize & 0xff)).chr($nFileSize >> 8)); print("/x0/x0/x0/x0/x0/x0/x36/x0/x0/x0/x28/x0/x0/x0".chr($num*10)."/x0/x0/x0/xa/x0/x0/x0/x1/x0");
//输出图像信息头 print("/x18/x0/x0/x0/x0/x0/xb0/x4/x0/x0/x12/xb/x0/x0/x12/xb/x0/x0/x0/x0/x0/x0/x0/x0/x0/x0");
for($i = 9; $i >= 0; $i--) // 历经所有行 { for($ii = 0; $ii < $num; $ii++) //历经所有字 { // 逐行、逐字、逐像素地输出图像数据 for($iii = 0; $iii < 10; $iii++) //历经所有像素 { if(rand(0, 100) < $cOdds) { //随机生成杂点 print($vColorData[0]); } else { print($vColorData[$vNumberData[$vCode[$ii]]{$i * 10 + $iii}]); } } } }}validation("123HEM");?>
