/** 创建验证码 */
public function create()
{
// 创建图象
$this->_img_res = imagecreate($this->width, $this->height);
// 填充背景
ImageColorAllocate($this->_img_res, $this->backgroundColor[0], $this->backgroundColor[1], $this->backgroundColor[2]);
// 分配颜色
$col_ellipse = imagecolorallocate($this->_img_res, $this->iconColor[0], $this->iconColor[1], $this->iconColor[2]);
$minArea = $this->iconSize / 2 + 3;
// 混淆用图象,不完整的圆
for ($i = 0; $i < $this->icon; $i++) {
$x = mt_rand($minArea, $this->width - $minArea);
$y = mt_rand($minArea, $this->height - $minArea);
$s = mt_rand(0, 360);
$e = $s + 330;
imagearc($this->_img_res, $x, $y, $this->iconSize, $this->iconSize, $s, $e, $col_ellipse);
}
// 验证用图象,完整的圆
$x = mt_rand($minArea, $this->width - $minArea);
$y = mt_rand($minArea, $this->height - $minArea);
$r = $this->iconSize / 2;
imagearc($this->_img_res, $x, $y, $this->iconSize, $this->iconSize, 0, 360, $col_ellipse);
// 记录圆心坐标及半径
$this->captcha_session($this->sess_name, array($x, $y, $r));
// 生成图象
Header("Content-type: image/PNG");
ImagePNG($this->_img_res);
ImageDestroy($this->_img_res);
exit;
}
function vCode($num = 4, $size = 20, $width = 0, $height = 0)
{
!$width && ($width = $num * $size * 4 / 5 + 5);
!$height && ($height = $size + 10);
$str = "0123456789";
//验证码字符全集
$code = '';
for ($i = 0; $i < $num; $i++) {
$code .= $str[mt_rand(0, strlen($str) - 1)];
}
// 画图像
$im = imagecreatetruecolor($width, $height);
// 定义要用到的颜色
$back_color = imagecolorallocate($im, 255, 255, 255);
// $boer_color = imagecolorallocate($im, 100, 100, 100);
$text_color = imagecolorallocate($im, 50, 50, 50);
// 画背景
imagefilledrectangle($im, 0, 0, $width, $height, $back_color);
// 画边框
// imagerectangle($im, 0, 0, $width-1, $height-1, $boer_color);
// 画干扰线
for ($i = 0; $i < 30; $i++) {
$font_color = imagecolorallocate($im, 0, 0, 0);
imagearc($im, mt_rand(-$width, $width), mt_rand(-$height, $height), mt_rand(30, $width * 2), mt_rand(20, $height * 2), mt_rand(0, 360), mt_rand(0, 360), $font_color);
}
// 画验证码
@imagefttext($im, $size, 0, 5, $size + 3, $text_color, 'images/index/Callie-Mae.ttf', $code);
$_SESSION["VerifyCode"] = $code;
header("Cache-Control: max-age=1, s-maxage=1, no-cache, must-revalidate");
header("Content-type: image/png;charset=gb2312");
imagepng($im);
imagedestroy($im);
}
/**
* Outputs the Captcha image.
*
* @param boolean html output
* @return mixed
*/
public function render($html)
{
// Creates a black image to start from
$this->image_create(Captcha::$config['background']);
// Add random white/gray arcs, amount depends on complexity setting
$count = (Captcha::$config['width'] + Captcha::$config['height']) / 2;
$count = $count / 5 * min(10, Captcha::$config['complexity']);
for ($i = 0; $i < $count; $i++) {
imagesetthickness($this->image, mt_rand(1, 2));
$color = imagecolorallocatealpha($this->image, 255, 255, 255, mt_rand(0, 120));
imagearc($this->image, mt_rand(-Captcha::$config['width'], Captcha::$config['width']), mt_rand(-Captcha::$config['height'], Captcha::$config['height']), mt_rand(-Captcha::$config['width'], Captcha::$config['width']), mt_rand(-Captcha::$config['height'], Captcha::$config['height']), mt_rand(0, 360), mt_rand(0, 360), $color);
}
// Use different fonts if available
$font = Captcha::$config['fontpath'] . Captcha::$config['fonts'][array_rand(Captcha::$config['fonts'])];
// Draw the character's white shadows
$size = (int) min(Captcha::$config['height'] / 2, Captcha::$config['width'] * 0.8 / strlen($this->response));
$angle = mt_rand(-15 + strlen($this->response), 15 - strlen($this->response));
$x = mt_rand(1, Captcha::$config['width'] * 0.9 - $size * strlen($this->response));
$y = (Captcha::$config['height'] - $size) / 2 + $size;
$color = imagecolorallocate($this->image, 255, 255, 255);
imagefttext($this->image, $size, $angle, $x + 1, $y + 1, $color, $font, $this->response);
// Add more shadows for lower complexities
Captcha::$config['complexity'] < 10 and imagefttext($this->image, $size, $angle, $x - 1, $y - 1, $color, $font, $this->response);
Captcha::$config['complexity'] < 8 and imagefttext($this->image, $size, $angle, $x - 2, $y + 2, $color, $font, $this->response);
Captcha::$config['complexity'] < 6 and imagefttext($this->image, $size, $angle, $x + 2, $y - 2, $color, $font, $this->response);
Captcha::$config['complexity'] < 4 and imagefttext($this->image, $size, $angle, $x + 3, $y + 3, $color, $font, $this->response);
Captcha::$config['complexity'] < 2 and imagefttext($this->image, $size, $angle, $x - 3, $y - 3, $color, $font, $this->response);
// Finally draw the foreground characters
$color = imagecolorallocate($this->image, 0, 0, 0);
imagefttext($this->image, $size, $angle, $x, $y, $color, $font, $this->response);
// Output
return $this->image_render($html);
}
function gauge()
{
// Prepare image
$this->img = imagecreate(100, 100);
$this->white = imagecolorallocate($this->img, 255, 255, 255);
$this->black = imagecolorallocate($this->img, 0, 0, 0);
$this->red = imagecolorallocate($this->img, 150, 0, 0);
$this->yellow = imagecolorallocate($this->img, 150, 150, 0);
$this->green = imagecolorallocate($this->img, 0, 150, 0);
// Set parameters
$this->center = 50;
$this->min = 0;
$this->maxred = 50;
$this->maxyellow = 80;
$this->max = 100;
$this->pos = 90;
$this->legend = "";
// Draw Gauge
imagearc($this->img, $this->center, $this->center, 100, 100, 0, 360, $this->black);
imagearc($this->img, $this->center, $this->center, 10, 10, 0, 360, $this->black);
imagearc($this->img, $this->center, $this->center, 86, 86, 0 + 180, 180 + 180, $this->black);
imagearc($this->img, $this->center, $this->center, 56, 56, 0 + 180, 180 + 180, $this->black);
$this->addLine($this->min);
$this->addLine($this->maxred);
imagefill($this->img, 25, 25, $this->red);
//check this point if you move the arcs
$this->addLine($this->maxyellow);
imagefill($this->img, 55, 15, $this->yellow);
//check this point if you move the arcs
$this->addLine($this->max);
imagefill($this->img, 85, 30, $this->green);
//check this point if you move the arcs
imagefill($this->img, 50, 75, $this->black);
}
public static function fill_arc($im, $centerX, $centerY, $diameter, $start, $end, $color1, $color2, $text = '', $placeindex = 0)
{
$r = $diameter / 2;
$w = deg2rad((360 + $start + ($end - $start) / 2) % 360);
if (function_exists("imagefilledarc")) {
// exists only if GD 2.0.1 is avaliable
imagefilledarc($im, $centerX + 1, $centerY + 1, $diameter, $diameter, $start, $end, $color1, IMG_ARC_PIE);
imagefilledarc($im, $centerX, $centerY, $diameter, $diameter, $start, $end, $color2, IMG_ARC_PIE);
imagefilledarc($im, $centerX, $centerY, $diameter, $diameter, $start, $end, $color1, IMG_ARC_NOFILL | IMG_ARC_EDGED);
} else {
imagearc($im, $centerX, $centerY, $diameter, $diameter, $start, $end, $color2);
imageline($im, $centerX, $centerY, $centerX + cos(deg2rad($start)) * $r, $centerY + sin(deg2rad($start)) * $r, $color2);
imageline($im, $centerX, $centerY, $centerX + cos(deg2rad($start + 1)) * $r, $centerY + sin(deg2rad($start)) * $r, $color2);
imageline($im, $centerX, $centerY, $centerX + cos(deg2rad($end - 1)) * $r, $centerY + sin(deg2rad($end)) * $r, $color2);
imageline($im, $centerX, $centerY, $centerX + cos(deg2rad($end)) * $r, $centerY + sin(deg2rad($end)) * $r, $color2);
imagefill($im, $centerX + $r * cos($w) / 2, $centerY + $r * sin($w) / 2, $color2);
}
if ($text) {
if ($placeindex > 0) {
imageline($im, $centerX + $r * cos($w) / 2, $centerY + $r * sin($w) / 2, $diameter, $placeindex * 12, $color1);
imagestring($im, 4, $diameter, $placeindex * 12, $text, $color1);
} else {
imagestring($im, 4, $centerX + $r * cos($w) / 2, $centerY + $r * sin($w) / 2, $text, $color1);
}
}
}
function draw_axes()
{
global $im, $black, $gray;
for ($x = -1.1; $x <= 1.1; $x += 0.2) {
imagearc($im, transform_x($x), transform_y(y), 3, 3, 0, 360, $black);
imagettftext($im, 10, 0, transform_x($x) - 10, transform_y(0) - 4, $black, FONT, $x);
for ($y = 0; $y <= HEIGHT; $y += 30) {
imageline($im, transform_x($x), $y, transform_x($x), $y + 10, $gray);
}
imagearc($im, transform_x($x), transform_y(f($x)), 3, 3, 0, 360, $black);
for ($xprime = 0; $xprime <= transform_x($x); $xprime += 30) {
imageline($im, $xprime, transform_y(f($x)), $xprime + 10, transform_y(f($x)), $gray);
}
imagettftext($im, 10, 0, transform_x($x) + 4, transform_y(f($x)), $black, FONT, round(f($x), 2));
}
// x axis
imageline($im, 0, HEIGHT / 2, WIDTH, HEIGHT / 2, $black);
// y axis
imageline($im, WIDTH / 2, 0, WIDTH / 2, HEIGHT, $black);
// box
imageline($im, 0, 0, WIDTH, 0, $black);
imageline($im, 0, 0, 0, HEIGHT, $black);
imageline($im, 0, HEIGHT - 1, WIDTH - 1, HEIGHT - 1, $black);
imageline($im, WIDTH - 1, 0, WIDTH - 1, HEIGHT - 1, $black);
}
/**
* GD Rectangle Function
*
* @param class $siggen
* @param array $data
* int x
* int y
* int x2
* int y2
* bool filled
* int radius
* string color
* int alpha
*
* @return bool
*/
function gd_rectangle($siggen, $data)
{
// Get our color index
$color = $this->set_color($data['color'], $data['alpha']);
// Make sure radius is a positive number
$data['radius'] = abs($data['radius']);
// Only do this "massive" drawing if we have rounded corners
if ($data['radius'] > 0) {
if ($data['filled'] == 1) {
imagefilledrectangle($siggen->im, $data['x'] + $data['radius'], $data['y'], $data['x2'] - $data['radius'], $data['y2'], $color);
imagefilledrectangle($siggen->im, $data['x'], $data['y'] + $data['radius'], $data['x'] + $data['radius'] - 1, $data['y2'] - $data['radius'], $color);
imagefilledrectangle($siggen->im, $data['x2'] - $data['radius'] + 1, $data['y'] + $data['radius'], $data['x2'], $data['y2'] - $data['radius'], $color);
imagefilledarc($siggen->im, $data['x'] + $data['radius'], $data['y'] + $data['radius'], $data['radius'] * 2, $data['radius'] * 2, 180, 270, $color, IMG_ARC_PIE);
imagefilledarc($siggen->im, $data['x2'] - $data['radius'], $data['y'] + $data['radius'], $data['radius'] * 2, $data['radius'] * 2, 270, 360, $color, IMG_ARC_PIE);
imagefilledarc($siggen->im, $data['x'] + $data['radius'], $data['y2'] - $data['radius'], $data['radius'] * 2, $data['radius'] * 2, 90, 180, $color, IMG_ARC_PIE);
imagefilledarc($siggen->im, $data['x2'] - $data['radius'], $data['y2'] - $data['radius'], $data['radius'] * 2, $data['radius'] * 2, 360, 90, $color, IMG_ARC_PIE);
} else {
imageline($siggen->im, $data['x'] + $data['radius'], $data['y'], $data['x2'] - $data['radius'], $data['y'], $color);
imageline($siggen->im, $data['x'] + $data['radius'], $data['y2'], $data['x2'] - $data['radius'], $data['y2'], $color);
imageline($siggen->im, $data['x'], $data['y'] + $data['radius'], $data['x'], $data['y2'] - $data['radius'], $color);
imageline($siggen->im, $data['x2'], $data['y'] + $data['radius'], $data['x2'], $data['y2'] - $data['radius'], $color);
imagearc($siggen->im, $data['x'] + $data['radius'], $data['y'] + $data['radius'], $data['radius'] * 2, $data['radius'] * 2, 180, 270, $color);
imagearc($siggen->im, $data['x2'] - $data['radius'], $data['y'] + $data['radius'], $data['radius'] * 2, $data['radius'] * 2, 270, 360, $color);
imagearc($siggen->im, $data['x'] + $data['radius'], $data['y2'] - $data['radius'], $data['radius'] * 2, $data['radius'] * 2, 90, 180, $color);
imagearc($siggen->im, $data['x2'] - $data['radius'], $data['y2'] - $data['radius'], $data['radius'] * 2, $data['radius'] * 2, 360, 90, $color);
}
} else {
if ($data['filled'] == 1) {
imagefilledrectangle($siggen->im, $data['x'], $data['y'], $data['x2'], $data['y2'], $color);
} else {
imagerectangle($siggen->im, $data['x'], $data['y'], $data['x2'], $data['y2'], $color);
}
}
return TRUE;
}
/**
* renders the current captcha image
*/
function showImage()
{
$image = imagecreatetruecolor($this->width, $this->height);
$width = imagesx($image);
$height = imagesy($image);
$black = imagecolorallocate($image, 0, 0, 0);
$white = imagecolorallocate($image, 250, 250, 250);
$red = imagecolorallocatealpha($image, 225, 225, 225, 75);
$green = imagecolorallocatealpha($image, 150, 150, 150, 75);
$blue = imagecolorallocatealpha($image, 200, 200, 200, 75);
imagefilledrectangle($image, 0, 0, $width, $height, $white);
imagefilledellipse($image, ceil(rand(5, 145)), ceil(rand(0, 35)), 30, 30, $red);
$points = array(rand(0, 150), rand(0, 50), rand(0, 150), rand(0, 50), rand(0, 150), rand(0, 50), rand(0, 150), rand(0, 50), rand(0, 150), rand(0, 50), rand(0, 150), rand(0, 50));
imagefilledpolygon($image, $points, 4, $blue);
imagefilledpolygon($image, array_reverse($points), 6, $green);
imagefilledrectangle($image, 0, 0, $width, 0, $black);
imagefilledrectangle($image, $width - 1, 0, $width - 1, $height - 1, $black);
imagefilledrectangle($image, 0, 0, 0, $height - 1, $black);
imagefilledrectangle($image, 0, $height - 1, $width, $height - 1, $black);
for ($i = 0; $i < 50; $i++) {
//imagefilledrectangle($im, $i + $i2, 5, $i + $i3, 70, $black);
imagesetthickness($image, rand(1, 5));
imagearc($image, rand(1, 150), rand(1, 50), rand(1, 150), rand(1, 50), rand(1, 150), rand(1, 50), rand(0, 1) ? $green : $red);
}
if (function_exists("imagettftext")) {
$font = DIR_ROOT . 'view/fonts/Duality.ttf';
imagettftext($image, 24, rand(-5, 5), intval(($width - strlen($this->code) * 10) / 2), intval(($height + 10) / 2), $black, $font, $this->code);
} else {
imagestring($image, 5, intval(($width - strlen($this->code) * 9) / 2), intval(($height - 15) / 2), $this->code, $black);
}
header('Content-type: image/jpeg');
imagejpeg($image);
imagedestroy($image);
}
function createimage()
{
$this->calculate();
$r = $this->radius;
//$image=imagecreate($r*3,$r*2); // Modified by Elpidio Latorilla 2003-04-23
$image = imagecreate($r * 2, $r * 2);
$white = imagecolorallocate($image, 255, 255, 255);
$black = imagecolorallocate($image, 0, 0, 0);
imagecolorTransparent($image, $white);
for ($k = 0; $k < count($this->colors); $k++) {
$fillcolor[$k] = imagecolorallocate($image, $this->colornames[$this->colors[$k]][0], $this->colornames[$this->colors[$k]][1], $this->colornames[$this->colors[$k]][2]);
}
imagearc($image, $r, $r, $r * 2 - 1, $r * 2 - 1, 0, 360, $black);
imagefill($image, $r, $r, $fillcolor[0]);
for ($j = 0; $j < count($this->elements); $j++) {
$degree += 360 * $this->fractions[$j];
if ($this->elements[$j]) {
imageline($image, $r, $r, $r + $r * cos($degree * pi() / 180), $r + $r * sin($degree * pi() / 180), $black);
imagefill($image, $r + 15 * cos(($degree + 5) * pi() / 180), $r + 15 * sin(($degree + 5) * pi() / 180), $fillcolor[$j]);
}
// Modified by Elpidio Latorilla 2003-04-23
//imagefilledrectangle($image,2.1*$r,.7*$r+($r/15)*$j,2.12*$r+($r/25),.7*$r+5+($r/15)*$j,$fillcolor[$j]);
//imagestring($image,0,2.13*$r+$r/20,.71*$r+($r/15)*$j-2,$this->elements[$j]."-".$this->elementnames[$j],$black);
}
$this->final = $image;
}
/**
*
* @brief 图片处理 验证码
* @param unknown_type $length
* @param unknown_type $mode
* @param unknown_type $type
* @param unknown_type $width
* @param unknown_type $height
* @param unknown_type $verifyName
*/
public static function buildImageVerify($length = 4, $mode = 1, $type = 'png', $width = 48, $height = 22, $verifyName = 'verify')
{
$randval = self::randString($length, $mode);
$_SESSION[$verifyName] = md5($randval);
$width = $length * 10 + 10 > $width ? $length * 10 + 10 : $width;
if ($type != 'gif' && function_exists('imagecreatetruecolor')) {
$im = imagecreatetruecolor($width, $height);
} else {
$im = imagecreate($width, $height);
}
$r = array(225, 255, 255, 223);
$g = array(225, 236, 237, 255);
$b = array(225, 236, 166, 125);
$key = mt_rand(0, 3);
$backColor = imagecolorallocate($im, $r[$key], $g[$key], $b[$key]);
//背景色（随机）
$borderColor = imagecolorallocate($im, 100, 100, 100);
//边框色
imagefilledrectangle($im, 0, 0, $width - 1, $height - 1, $backColor);
imagerectangle($im, 0, 0, $width - 1, $height - 1, $borderColor);
$stringColor = imagecolorallocate($im, mt_rand(0, 200), mt_rand(0, 120), mt_rand(0, 120));
// 干扰
for ($i = 0; $i < 10; $i++) {
imagearc($im, mt_rand(-10, $width), mt_rand(-10, $height), mt_rand(200, 300), mt_rand(35, 200), 55, 44, $stringColor);
}
for ($i = 0; $i < 25; $i++) {
imagesetpixel($im, mt_rand(0, $width), mt_rand(0, $height), $stringColor);
}
for ($i = 0; $i < $length; $i++) {
imagestring($im, 5, $i * 10 + 5, mt_rand(1, 8), $randval[$i], $stringColor);
}
Image::output($im, $type);
}
/**
* +----------------------------------------------------------
* 图片上传的处理函数
* +----------------------------------------------------------
*/
function create_captcha()
{
$word = $this->create_word();
// 把验证码字符串写入session
$_SESSION['captcha'] = md5($word . DOU_SHELL);
// 绘制基本框架
$im = imagecreatetruecolor($this->captcha_width, $this->captcha_height);
$bg_color = imagecolorallocate($im, 235, 236, 237);
imagefilledrectangle($im, 0, 0, $this->captcha_width, $this->captcha_height, $bg_color);
$border_color = imagecolorallocate($im, 118, 151, 199);
imagerectangle($im, 0, 0, $this->captcha_width - 1, $this->captcha_height - 1, $border_color);
// 添加干扰
for ($i = 0; $i < 5; $i++) {
$rand_color = imagecolorallocate($im, mt_rand(0, 255), mt_rand(0, 255), mt_rand(0, 255));
imagearc($im, mt_rand(-$this->captcha_width, $this->captcha_width), mt_rand(-$this->captcha_height, $this->captcha_height), mt_rand(30, $this->captcha_width * 2), mt_rand(20, $this->captcha_height * 2), mt_rand(0, 360), mt_rand(0, 360), $rand_color);
}
for ($i = 0; $i < 50; $i++) {
$rand_color = imagecolorallocate($im, mt_rand(0, 255), mt_rand(0, 255), mt_rand(0, 255));
imagesetpixel($im, mt_rand(0, $this->captcha_width), mt_rand(0, $this->captcha_height), $rand_color);
}
// 生成验证码图片
$text_color = imagecolorallocate($im, mt_rand(0, 200), mt_rand(0, 120), mt_rand(0, 120));
imagestring($im, 6, 18, 5, $word, $text_color);
// header
header("Cache-Control: max-age=1, s-maxage=1, no-cache, must-revalidate");
header("Content-type: image/png;charset=utf-8");
/* 绘图结束 */
imagepng($im);
imagedestroy($im);
return true;
}
/**
* (non-PHPdoc)
* @see Imagine\Draw\DrawerInterface::arc()
*/
public function arc(PointInterface $center, BoxInterface $size, $start, $end, Color $color)
{
if (false === imagearc($this->resource, $center->getX(), $center->getY(), $size->getWidth(), $size->getHeight(), $start, $end, $this->getColor($color))) {
throw new RuntimeException('Draw arc operation failed');
}
return $this;
}
public static function buildVerifyImage($length = 4, $width = 48, $height = 22, $verifyName = 'verify')
{
$randval = substr(md5(time() . microtime()), 5, $length);
header('Content-Type: image/gif');
$_SESSION[$verifyName] = md5($randval);
$width = $length * 9 + 10 > $width ? $length * 9 + 10 : $width;
$im = @imagecreate($width, $height);
$r = array(225, 255, 255, 223);
$g = array(225, 236, 237, 255);
$b = array(225, 236, 166, 125);
$key = mt_rand(0, 3);
$backColor = imagecolorallocate($im, $r[$key], $g[$key], $b[$key]);
//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
@imagefilledrectangle($im, 0, 0, $width - 1, $height - 1, $backColor);
//@imagerectangle($im, 0, 0, $width-1, $height-1, $borderColor);
$stringColor = imagecolorallocate($im, mt_rand(0, 200), mt_rand(0, 120), mt_rand(0, 120));
//干扰
for ($i = 0; $i < 5; $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, $fontcolor);
}
for ($i = 0; $i < 10; $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), $pointColor);
}
@imagestring($im, 5, 5, 3, $randval, $stringColor);
imagegif($im);
}
/**
* Draws this object onto an image
*
* @param img.Image image
* @return var
*/
public function draw($image)
{
if (FALSE !== $this->fill) {
return imagefilledarc($image->handle, $this->cx, $this->cy, $this->w, $this->h, $this->s, $this->e, $this->col->handle, $this->fill);
} else {
return imagearc($image->handle, $this->cx, $this->cy, $this->w, $this->h, $this->s, $this->e, $this->col->handle);
}
}
function draw_data($x,$y,$rad,$color, $isCore = false)
{
global $im,$x0,$y0,$black, $maxX, $maxY;
//рисуем точку
imagefilledarc($im,$x0 + $x,$maxY-$y,$rad,$rad,0,360,$color,IMG_ARC_PIE);
if ($isCore) imagearc($im,$x0 + $x,$maxY-$y,$rad,$rad,0,360,$black);
}
private function drawLines()
{
$lineCnt = mt_rand(4, 8);
for ($i = 0; $i < $lineCnt; $i++) {
imagesetthickness($this->tmpImage, rand(1, 3));
imagearc($this->tmpImage, mt_rand(-10, $this->width), mt_rand(-10, $this->height), mt_rand(30, 300), mt_rand(20, 200), mt_rand(80, 360), mt_rand(0, 300), $this->textColor);
}
}
public function draw($data)
{
$img = $this->prepare_image($data);
if (!empty($data['fill_color'])) {
imagefilledellipse($img, $this->padding + $data['radius'], $this->padding + $data['radius'], $data['radius'], $data['radius'], $this->get_line_color($img, $data['fill_color']));
}
imagearc($img, $this->padding + $data['radius'], $this->padding + $data['radius'], $data['radius'], $data['radius'], 0, 360, $this->get_line_color($img, $data['line_color']));
$this->_draw($img);
}
function circle_sectioned($x, $y, $radius, $color)
{
global $image;
for ($rad = $radius - 4; $rad <= $radius; $rad++) {
for ($sections = 0; $sections < 6; $sections++) {
imagearc($image, $x, $y, $rad, $rad, $sections * 60, $sections * 60 + 40, $color);
}
}
}
public function arc(Point $center, $width, $height, $start, $end, $style = NULL, $filled = FALSE, Color $color = NULL)
{
if (!$center->isInImage($this)) {
throw new IllegalArgumentException();
}
if ($filled == TRUE && $style == NULL) {
throw new IllegalArgumentException();
}
$filled == TRUE ? imagefilledarc($this->imageResource, $center->getX(), $center->getY(), $width, $height, $start, $end, $this->prepareColor($color), $style) : imagearc($this->imageResource, $center->getX(), $center->getY(), $width, $height, $start, $end, $this->prepareColor($color));
}
public function mkCode($num = 4, $size = 20, $width = 0, $height = 0)
{
// $num => 验证码字符数目
// $size => 字符大小(注意单位是pt不是px)
// $width这只是大概的图像宽度，因为不同字体的同样font-size所占width也是有微小差距的
!$width && ($width = $num * $size);
//根据要显示验证码字符长度设置验证码图像长度
!$height && ($height = $size + 10);
//设置图像的高度
$font_url = dirname(dirname(__FILE__)) . "/font/mywanderingheart.ttf";
//如果字体路径错误：会无法显示验证码，但是有图像（后面这一点得看情况）
// 我们要显示的验证码字符集合
$str = "23456789abcdefghijkmnpqrstuvwxyzABCDEFGHIJKLMNPQRSTUVW";
//要显示的验证码
$code = '';
for ($i = 0; $i < $num; $i++) {
$code .= $str[mt_rand(0, strlen($str) - 1)];
}
// 画图像,新建一个真彩色图像,并返回一个图像标识符赋值给 $im
$im = imagecreatetruecolor($width, $height);
// 定义要用到的颜色
$background_color = imagecolorallocate($im, 255, 255, 255);
//这里默认白色背景
$border_color = imagecolorallocate($im, 255, 255, 255);
//这里默认白色边框
$text_color = imagecolorallocate($im, 50, 50, 50);
//这里默认淡黑色字体颜色
// 画背景
imagefilledrectangle($im, 0, 0, $width, $height, $background_color);
// 画边框（该函数事实上是画一个矩形）
imagerectangle($im, 0, 0, $width - 1, $height - 1, $border_color);
// 画干扰点
for ($i = 0; $i < 10 * $num; $i++) {
$font_color = imagecolorallocate($im, mt_rand(0, 255), mt_rand(0, 255), mt_rand(0, 255));
imagesetpixel($im, mt_rand(0, $width), mt_rand(0, $height), $font_color);
}
// 默认画4条干扰线
//这地方可以自己研究一下
for ($i = 0; $i < 4; $i++) {
$font_color = imagecolorallocate($im, mt_rand(0, 255), mt_rand(0, 255), mt_rand(0, 255));
imagearc($im, mt_rand(0, $width), mt_rand(0, $height), mt_rand(0, $width), mt_rand(0, $height), mt_rand(0, 360), mt_rand(0, 360), $font_color);
// imagearc($im, 0, 0, $width*2, $height, 0, 90, $font_color);
}
//好吧，是时候把验证码字符画上去了
@imagefttext($im, $size, 0, 10, $size + 5, $text_color, $font_url, $code);
// 喂,浏览器！我给你发的这个东西不要从你的缓存中拿啊。还有啊，这是一个png图像，不要解析错了。
header("Cache-Control: max-age=1, s-maxage=1, no-cache, must-revalidate");
header("Content-type: image/png;charset=utf-8");
// imagepng 以 PNG 格式将图像输出到浏览器,如果指定了第二个参数 filename 将保存图像到文件
// 例如imagepng( $im, '1.png' ); 将图像保存到同级目录下的1.png文件(如果该文件已存在则覆盖)
imagepng($im);
imagedestroy($im);
return $code;
//把验证码字符返回
}
public function imagetest()
{
ob_end_clean();
header("Content-type: image/png");
$im = @imagecreate(200, 200) or die("创建图像资源失败");
$bg = imagecolorallocate($im, 204, 204, 204);
$red = imagecolorallocate($im, 255, 0, 0);
imagearc($im, 100, 100, 150, 150, 0, 360, $red);
imagepng($im);
imagedestroy($im);
}
/**
* 给验证码画干扰线
*/
public function plotLine()
{
for ($i = 0; $i < 15; $i++) {
$fontcolor = imagecolorallocate($this->img, mt_rand(0, 255), mt_rand(0, 255), mt_rand(0, 255));
imagearc($this->img, mt_rand(-10, $this->wildth), mt_rand(-10, $this->height), mt_rand(30, 300), mt_rand(20, 200), 55, 44, $fontcolor);
}
for ($i = 0; $i < 255; $i++) {
$fontcolor = imagecolorallocate($this->img, mt_rand(0, 255), mt_rand(0, 255), mt_rand(0, 255));
imagesetpixel($this->img, mt_rand(0, $this->wildth), mt_rand(0, $this->height), $fontcolor);
}
}
public function verify($mode = 1, $length = 4, $width = 60, $height = 22)
{
session_start();
$img = imagecreatetruecolor($width, $height);
//创建颜色
$bgcolor = imagecolorallocate($img, mt_rand(0, 255), mt_rand(0, 255), mt_rand(0, 255));
//画一个矩形并填充
imagefilledrectangle($img, 0, 0, $width - 1, $height - 1, $bgcolor);
//画点
for ($i = 0; $i < 60; $i++) {
$pointcolor = imagecolorallocate($img, mt_rand(0, 255), mt_rand(0, 255), mt_rand(0, 255));
imagesetpixel($img, mt_rand(0, $width), mt_rand(0, $height), $pointcolor);
}
//画线段
for ($i = 0; $i < 10; $i++) {
$linecolor = imagecolorallocate($img, mt_rand(0, 255), mt_rand(0, 255), mt_rand(0, 255));
imageline($img, mt_rand(0, $width), mt_rand(0, $height), mt_rand(0, $width), mt_rand(0, $height), $linecolor);
}
//画弧线
for ($i = 0; $i < 10; $i++) {
$hucolor = imagecolorallocate($img, mt_rand(0, 255), mt_rand(0, 255), mt_rand(0, 255));
imagearc($img, mt_rand(10, $width - 10), mt_rand(10, $height - 10), mt_rand(0, $width), mt_rand(0, $height), mt_rand(0, 360), mt_rand(0, 360), $hucolor);
}
//产生一个随机字符串
$num = '0123456789';
$zimu = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
$str = '';
switch ($mode) {
case 1:
$str = $num;
break;
case 2:
$str = $zimu;
break;
case 3:
$str = $num . $zimu;
}
//将字符串当做数组
$str2 = '';
for ($i = 0; $i < $length; $i++) {
$str2 .= $str[mt_rand(0, strlen($str) - 1)];
}
//存session中
$_SESSION['verify'] = md5($str2);
for ($i = 0; $i < strlen($str2); $i++) {
//水平的画一个字符串
$strcolor = imagecolorallocate($img, mt_rand(0, 255), mt_rand(0, 255), mt_rand(0, 255));
//imagestring($img, 5, 0, 0, $str2, $strcolor);
$x = 10 + ($width - 10 * 2) / 4 * $i;
imagettftext($img, 15, mt_rand(-10, 10), $x, $height, $strcolor, 'consola.ttf', substr($str2, $i, 1));
}
//输出并销毁
$this->putout($img);
}
private function setdisturbcolor()
{
for ($i = 0; $i < 90; $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), $color);
}
for ($i = 0; $i < 10; $i++) {
$color = imagecolorallocate($this->img, rand(128, 225), rand(128, 225), rand(128, 225));
imagearc($this->img, rand(-10, $this->width + 10), rand(-10, $this->height + 10), rand(30, 300), rand(30, 300), 55, 44, $color);
}
}
private function setDisturbColor()
{
for ($i = 0; $i < $this->disturbColorNum; $i++) {
$color = imagecolorallocate($this->image, rand(0, 255), rand(0, 255), rand(0, 255));
imagesetpixel($this->image, rand(1, $this->width - 2), rand(1, $this->height - 2), $color);
}
for ($i = 0; $i < 10; $i++) {
$color = imagecolorallocate($this->image, rand(200, 255), rand(200, 255), rand(200, 255));
imagearc($this->image, rand(-10, $this->width), rand(-10, $this->height), rand(30, 300), rand(20, 200), 55, 44, $color);
}
}
function imageroundedrectangle($image, $x1, $y1, $x2, $y2, $radius, $color)
{
imageline($image, $x1 + $radius, $y1, $x2 - $radius, $y1, $color);
imageline($image, $x1 + $radius, $y2, $x2 - $radius, $y2, $color);
imageline($image, $x1, $y1 + $radius, $x1, $y2 - $radius, $color);
imageline($image, $x2, $y1 + $radius, $x2, $y2 - $radius, $color);
imagearc($image, $x1 + $radius, $y1 + $radius, $radius * 2, $radius * 2, 180, 270, $color);
imagearc($image, $x2 - $radius, $y1 + $radius, $radius * 2, $radius * 2, 270, 360, $color);
imagearc($image, $x1 + $radius, $y2 - $radius, $radius * 2, $radius * 2, 90, 180, $color);
imagearc($image, $x2 - $radius, $y2 - $radius, $radius * 2, $radius * 2, 0, 90, $color);
}
private function drawDummy()
{
for ($i = 0; $i < 100; $i++) {
$pcolor = imagecolorallocate($this->img, mt_rand(0, 255), mt_rand(0, 255), mt_rand(0, 255));
imagesetpixel($this->img, rand(1, $this->codeWidth - 3), rand(1, $this->codeHeight - 3), $pcolor);
}
for ($i = 0; $i < 10; $i++) {
$lcolor = imagecolorallocate($this->img, mt_rand(0, 255), mt_rand(0, 128), mt_rand(0, 255));
imagearc($this->img, mt_rand(-10, $this->codeWidth + 10), mt_rand(-10, $this->codeHeight + 10), mt_rand(30, 300), mt_rand(30, 300), 55, 44, $lcolor);
}
return;
}
function verifyImg()
{
session_start();
$length = empty($_REQUEST['length']) ? 5 : intval($_REQUEST['length']);
$width = empty($_REQUEST['width']) ? 68 : intval($_REQUEST['width']);
$height = empty($_REQUEST['height']) ? 28 : intval($_REQUEST['height']);
$chs = 'ABCDEFGHIJKLMNPQRSTUVWXYZ123456789';
$code = '';
for ($i = 0; $i < $length; $i++) {
$sn = rand(0, 34);
$code .= substr($chs, $sn, 1);
}
$_SESSION["verifycode"] = $code;
$w = $length * 10 + 10;
if ($w > $width) {
$width = $w;
}
if (function_exists('imagecreatetruecolor')) {
$im = @imagecreatetruecolor($width, $height);
} else {
$im = @imagecreate($width, $height);
}
$r = array(225, 255, 255, 223);
$g = array(225, 236, 237, 255);
$b = array(225, 236, 166, 125);
$key = mt_rand(0, 3);
$backColor = imagecolorallocate($im, $r[$key], $g[$key], $b[$key]);
//±³¾°É«£¨Ëæ»ú£©
$borderColor = imagecolorallocate($im, 100, 100, 100);
//±ß¿òÉ«
$pointColor = imagecolorallocate($im, mt_rand(0, 255), mt_rand(0, 255), mt_rand(0, 255));
//µãÑÕÉ«
@imagefilledrectangle($im, 0, 0, $width - 1, $height - 1, $backColor);
@imagerectangle($im, 0, 0, $width - 1, $height - 1, $borderColor);
$stringColor = imagecolorallocate($im, mt_rand(0, 200), mt_rand(0, 120), mt_rand(0, 120));
// ¸ÉÈÅ
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, $fontcolor);
}
for ($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), $pointColor);
}
for ($i = 0; $i < $length; $i++) {
imagestring($im, 5, $i * 10 + 5, mt_rand(1, 8), $code[$i], $stringColor);
}
ob_clean();
header('Content-type: image/png');
imagepng($im);
imagedestroy($im);
}
private function setDisturb()
{
$area = $this->width * $this->height / 20;
$disturbNum = $area > 250 ? 250 : $area;
for ($i = 0; $i < $disturbNum; $i++) {
$color = imagecolorallocate($this->im, rand(0, 255), rand(0, 255), rand(0, 255));
imagesetpixel($this->im, rand(1, $this->width - 2), rand(1, $this->height - 2), $color);
}
for ($i = 0; $i <= 5; $i++) {
$color = imagecolorallocate($this->im, rand(128, 255), rand(125, 255), rand(100, 255));
imagearc($this->im, rand(0, $this->width), rand(0, $this->height), rand(30, 300), rand(20, 200), 50, 30, $color);
}
}
function roundedRectangle($image, $x1, $y1, $x2, $y2, $curveDepth, $color)
{
// Draw the four sides
imageline($image, $x1 + $curveDepth, $y1, $x2 - $curveDepth, $y1, $color);
imageline($image, $x1 + $curveDepth, $y2, $x2 - $curveDepth, $y2, $color);
imageline($image, $x1, $y1 + $curveDepth, $x1, $y2 - $curveDepth, $color);
imageline($image, $x2, $y1 + $curveDepth, $x2, $y2 - $curveDepth, $color);
// Draw the four corners
imagearc($image, $x1 + $curveDepth, $y1 + $curveDepth, 2 * $curveDepth, 2 * $curveDepth, 180, 270, $color);
imagearc($image, $x2 - $curveDepth, $y1 + $curveDepth, 2 * $curveDepth, 2 * $curveDepth, 270, 360, $color);
imagearc($image, $x2 - $curveDepth, $y2 - $curveDepth, 2 * $curveDepth, 2 * $curveDepth, 0, 90, $color);
imagearc($image, $x1 + $curveDepth, $y2 - $curveDepth, 2 * $curveDepth, 2 * $curveDepth, 90, 180, $color);
}