/**
* 验证码
*
*/
public function verifycode()
{
import('@.ORG.Seccode');
import('@.ORG.SeccodeUtil');
@ob_end_clean();
//清除之前出现的多余输入
$seccode = SeccodeUtil::make_seccode(CAPTCHA_CODE);
//随机生成验证码内容并保存到session中
$code = new Seccode();
$code->root_path = APP_PATH;
$code->code = $seccode;
//验证码内容
$code->type = 0;
//验证码类型,0:英文图片、1：中文图片、2：Flash 验证码、3：语音验证码、4：位图验证码
$code->width = $this->_CFG['captcha_width'];
//验证码宽度
$code->height = $this->_CFG['captcha_height'];
//验证码高度
$code->background = 0;
//随机图片背景
$code->adulterate = 1;
//随机背景图形
$code->ttf = 1;
//验证码
$code->angle = 0;
//随机倾斜度
$code->color = 1;
//随机颜色
$code->size = 0;
//随机大小
$code->shadow = 1;
//文字阴影
$code->animator = 1;
//GIF 动画
$code->warping = 0;
//随机扭曲
$code->fontpath = LIB_PATH . '/ORG/seccode/font/';
//字体包路径
$code->datapath = LIB_PATH . '/ORG/seccode/';
//背景图片、字体、声音等文件路径
$code->includepath = LIB_PATH . '/ORG/';
$code->display();
}
/**
* @param string $length 字符串长度
* @param string $mode 类型 0:大小写混写 1:纯数字 2:全部大写 3:全小写 4:汉字
* @param string $type 图像格式
* @param string $width 宽度
* @param string $height 高度
*/
static function buildImageVerify($length = 4, $mode = 1, $width = 48, $height = 22, $verifyName = 'checkcode')
{
session_start();
//生成随机数
$randval = self::rand_string($length, $mode);
//写入session 或写入全局变量
$_SESSION[$verifyName] = $randval;
//确定图片最适合长度
$width = $length * 10 + 10 > $width ? $length * 10 + 10 : $width;
$im = imagecreatetruecolor($width, $height);
$r = array(225, 255, 255, 223);
$g = array(225, 236, 237, 255);
$b = array(225, 236, 166, 125);
//生成随机数
$key = mt_rand(0, 3);
//为图像分配颜色
$backColor = imagecolorallocate($im, 225, 225, 225);
//背景色（随机）
$borderColor = imagecolorallocate($im, 100, 100, 100);
//边框色
$pointColor = imagecolorallocate($im, mt_rand(0, 255), mt_rand(0, 255), mt_rand(0, 255));
//点颜色
// 画一矩形并填充
@imagefilledrectangle($im, 0, 0, $width - 1, $height - 1, $backColor);
// 画一个矩形
@imagerectangle($im, 0, 0, $width - 1, $height - 1, $borderColor);
// 分配颜色
$stringColor = imagecolorallocate($im, mt_rand(0, 200), mt_rand(0, 120), mt_rand(0, 120));
// 圆弧干扰
for ($i = 0; $i < 10; $i++) {
$fontcolor = imagecolorallocate($im, mt_rand(0, 255), mt_rand(0, 255), mt_rand(0, 255));
imagearc($im, mt_rand(-10, $width), mt_rand(-10, $height), mt_rand(30, 300), mt_rand(20, 200), 55, 44, $fontcolor);
}
// 点干扰
for ($i = 0; $i < 25; $i++) {
$fontcolor = imagecolorallocate($im, mt_rand(0, 255), mt_rand(0, 255), mt_rand(0, 255));
imagesetpixel($im, mt_rand(0, $width), mt_rand(0, $height), $pointColor);
}
// 不水平画
for ($i = 0; $i < $length; $i++) {
$temp = $width / $length;
$size = mt_rand(4, 5);
imagestring($im, $size, $i * $temp + 5, mt_rand(1, 5), $randval[$i], $stringColor);
}
Seccode::output($im);
exit;
}
