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- /**
- * 验证码类
- */
- class Base_Tool_Verify{
- /**
- * 生成验证码方法
- */
- public static function createCode(){
- //生成验证码图片
- // 全数字
- $str = "D,B,2,3,4,5,6,7,8,9,A,B,C,D,E,F,G,H,W,J,K,M,M,N,K,P,Q,R,S,T,U,V,W,X,Y,Z"; //要显示的字符，可自己进行增删
- $list = explode(",", $str);
- $cmax = count($list) - 1;
- $verifyCode = '';
- for ( $i=0; $i < 4; $i++ ){
- $randnum = mt_rand(0, $cmax);
- $verifyCode .= $list[$randnum]; //取出字符，组合成为我们要的验证码字符
- }
- $_SESSION['code'] = $verifyCode; //将字符放入SESSION中
-
- $im = imagecreate(80,28); //生成图片
- $black = imagecolorallocate($im, 0 ,0 ,0); //此条及以下三条为设置的颜色
- $white = imagecolorallocate($im, 244,249,244);
- $gray = imagecolorallocate($im, rand(200,255),rand(200,255),rand(200,255));
- $red = imagecolorallocate($im, rand(200,255), rand(200,255), rand(200,255));
- $rand_color = imagecolorallocate($im, rand(0,255), rand(0,255), rand(0,255));
- $rand_color2 = imagecolorallocate($im, rand(0,255), rand(0,255), rand(0,255));
- imagefill($im,0,0,$white); //给图片填充颜色
- $pix=imagecolorallocate($im,rand(0,255),rand(0,255),rand(0,255));
- mt_srand();
- for($i=0;$i<100;$i++)
- {
- imagesetpixel($im,mt_rand(0,180),mt_rand(0,35),$pix);
- }
- imageline($im, 0,rand(0,28), 80, rand(0,28), $rand_color);
- imageline($im, 0,rand(0,28), 80, rand(0,28), $rand_color2);
-
- //将验证码绘入图片
- $mycolor = imagecolorallocate($im, 0, 78, 152);
- $path = API_PATH.DS.'Base'.DS.'Tool';
- putenv('GDFONTPATH=' . $path);
- $font = 'simhei.ttf';
- $arrstr = str_split($verifyCode);
- imagettftext($im, 20, rand(0,50), 10, rand(20,30), $mycolor, $font, $arrstr[0]);
- imagettftext($im, 15, rand(0,50), 20, rand(20,30), $mycolor, $font, $arrstr[1]);
- imagettftext($im, 15, rand(0,50), 30, rand(20,30), $mycolor, $font, $arrstr[2]);
- imagettftext($im, 15, rand(0,50), 40, rand(20,30), $mycolor, $font, $arrstr[3]);
- $font2=imagecolorallocate($im,41,163,238);
- imagerectangle($im,0,0,1,1,$font2);
- imagepng($im);
- imagedestroy($im);
- }
- }
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