PHP验证码代码_php验证码类_PHP教程
程序员文章站
2022-06-03 10:37:57
...
小编就为大家分享一个漂亮的php验证码类。需要的朋友可以过来参考下!
php验证码类代码
width=$width;
$this->height=$height;
$this->counts=$counts;
$this->distrubcode=$distrubcode;
$this->fonturl=$fonturl;
$this->session=$this->sessioncode();
session_start();
$_SESSION['code']=$this->session;
}
function imageout(){
$im=$this->createimagesource();
$this->setbackgroundcolor($im);
$this->set_code($im);
$this->setdistrubecode($im);
ImageGIF($im);
ImageDestroy($im);
}
private function createimagesource(){
return imagecreate($this->width,$this->height);
}
private function setbackgroundcolor($im){
$bgcolor = ImageColorAllocate($im, rand(200,255),rand(200,255),rand(200,255));//±3?°??é?
imagefill($im,0,0,$bgcolor);
}
private function setdistrubecode($im){
$count_h=$this->height;
$cou=floor($count_h*2);
for($i=0;$iwidth);
$y=rand(0,$this->height);
$jiaodu=rand(0,360);
$fontsize=rand(8,15);
$fonturl=$this->fonturl;
$originalcode = $this->distrubcode;
$countdistrub = strlen($originalcode);
$dscode = $originalcode[rand(0,$countdistrub-1)];
$color = ImageColorAllocate($im, rand(40,140),rand(40,140),rand(40,140));
imagettftext($im,$fontsize,$jiaodu,$x,$y,$color,$fonturl,$dscode);
}
}
private function set_code($im){
$width=$this->width;
$counts=$this->counts;
$height=$this->height;
$scode=$this->session;
$y=floor($height/2)+floor($height/4);
$fontsize=rand(30,35);
$fonturl="C:\Windows\Fonts\AdobeGothicStd-Bold.otf";//$this->fonturl;
$counts=$this->counts;
for($i=0;$idistrubcode;
$countdistrub = strlen($originalcode);
$_dscode = "";
$counts=$this->counts;
for($j=0;$jPHP验证码代码实例示范 建一个输出文件代码：
Header("Content-type: image/GIF");
$imagecode=new Imagecode(150,2);
$imagecode->imageout();
PHP验证码类就这么简单，可以用了！
源码。