脚本宝典收集整理的这篇文章主要介绍了php实现的验证码文件类实例,脚本宝典觉得挺不错的,现在分享给大家,也给大家做个参考。
本文实例讲述了PHP实现的验证码文件类。分享给大家供大家参考。具体如下:
<PRe class="brush:PHP;"> mCheckCode = strtoupper(substr(md5(rand()),$this->mCheckCodeNum)); return $this->mCheckCode; }/**
*/
private function Createimage()
{
$this->mCheckImage = @imagecreate ($this->mCheckImageWidth,$this->mCheckImageHeight);
imagecolorallocate ($this->mCheckImage,200,200);
return $this->mCheckImage;
}
/**
*/
private function SetDisturbColor()
{
for ($i=0;$i<=128;$i++)
{
$this->mDisturbColor = imagecolorallocate ($this->mCheckImage,rand(0,255),255));
imagesetpixel($this->mCheckImage,rand(2,128),38),$this->mDisturbColor);
}
}
/**
*/
public function SetCheckImageWH($width,$height)
{
if($width==''||$height=='')return false;
$this->mCheckImageWidth = $width;
$this->mCheckImageHeight = $height;
return true;
}
/**
/
private function WrITeCheckCodeToImage()
{
for ($i=0;$i<=$this->mCheckCodeNum;$i++)
{
$bg_color = imagecolorallocate ($this->mCheckImage,255));
$x = floor($this->mCheckImageWidth/$this->mCheckCodeNum)$i;
$y = rand(0,$this->mCheckImageHeight-15);
imagechar ($this->mCheckImage,5,$x,$y,$this->mCheckCode[$i],$bg_color);
}
}
/**
*/
public function OutCheckImage()
{
$this ->OutFileHeader();
$this ->CreateCheckCode();
$this ->CreateImage();
$this ->SetDisturbColor();
$this ->WriteCheckCodeToImage();
imagepng($this->mCheckImage);
imagedestroy($this->mCheckImage);
}
}
$c_check_code_image = new CCheckCodeFile();
//$c_check_code_image ->SetCheckImageWH(100,50);
//设置显示验证码图片的尺寸
$c_check_code_image ->OutCheckImage();
?>
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