时间:2021-07-01 10:21:17 帮助过:10人阅读
public function generateCode(){
$w = 50;
$h = 20;
$this->load->config('common');
$common_config = $this->config->item('common');
$pic_verify_code = $common_config['pic_verify_code'];
$code = func::getRandCode($pic_verify_code);
//创建图片,定义颜色值
$im = imagecreate($w, $h);
$black = imagecolorallocate($im,90,90,90);
$gray = imagecolorallocate($im, 189,252,201);
$bgcolor = imagecolorallocate($im, 255, 255, 255);
//填充背景
imagefill($im, 0, 0, $gray);
//画边框
imagerectangle($im, 0, 0, $w-1, $h-1, $black);
//随机绘制两条虚线,起干扰作用
$style = array ($black,$black,$black,$black,$black,
$gray,$gray,$gray,$gray,$gray
);
imagesetstyle($im, $style);
$y1 = rand(0, $h);
$y2 = rand(0, $h);
$y3 = rand(0, $h);
$y4 = rand(0, $h);
imageline($im, 0, $y1, $w, $y3, IMG_COLOR_STYLED);
imageline($im, 0, $y2, $w, $y4, IMG_COLOR_STYLED);
//在画布上随机生成大量黑点,起干扰作用
for ($i = 0; $i < 80; $i++) {
imagesetpixel($im, rand(0, $w), rand(0, $h), $black);
}
//将数字随机显示在画布上,字符的水平间距和位置都按一定波动范围随机生成
$strx = rand(3, 8);
for ($i = 0; $i < $pic_verify_code; $i++) {
$strpos = rand(1, 6);
imagestring($im, 5, $strx, $strpos, substr($code, $i, 1), $black);
$strx += rand(8, 12);
}
那么问题来了,怎么把这个图片存到我的服务器上面呢?
如代码GD生成了图片$im:
public function generateCode(){
$w = 50;
$h = 20;
$this->load->config('common');
$common_config = $this->config->item('common');
$pic_verify_code = $common_config['pic_verify_code'];
$code = func::getRandCode($pic_verify_code);
//创建图片,定义颜色值
$im = imagecreate($w, $h);
$black = imagecolorallocate($im,90,90,90);
$gray = imagecolorallocate($im, 189,252,201);
$bgcolor = imagecolorallocate($im, 255, 255, 255);
//填充背景
imagefill($im, 0, 0, $gray);
//画边框
imagerectangle($im, 0, 0, $w-1, $h-1, $black);
//随机绘制两条虚线,起干扰作用
$style = array ($black,$black,$black,$black,$black,
$gray,$gray,$gray,$gray,$gray
);
imagesetstyle($im, $style);
$y1 = rand(0, $h);
$y2 = rand(0, $h);
$y3 = rand(0, $h);
$y4 = rand(0, $h);
imageline($im, 0, $y1, $w, $y3, IMG_COLOR_STYLED);
imageline($im, 0, $y2, $w, $y4, IMG_COLOR_STYLED);
//在画布上随机生成大量黑点,起干扰作用
for ($i = 0; $i < 80; $i++) {
imagesetpixel($im, rand(0, $w), rand(0, $h), $black);
}
//将数字随机显示在画布上,字符的水平间距和位置都按一定波动范围随机生成
$strx = rand(3, 8);
for ($i = 0; $i < $pic_verify_code; $i++) {
$strpos = rand(1, 6);
imagestring($im, 5, $strx, $strpos, substr($code, $i, 1), $black);
$strx += rand(8, 12);
}
那么问题来了,怎么把这个图片存到我的服务器上面呢?
write to file ,e. fwite()
imagepng($im,'pic.png');
验证码直接发给客户端不就好了,保存起来干嘛;
https://www.gxlcms.com/xxx.php直接:
imagepng($im);
登陆那里