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ÔÚThinkPHP/Library/Think/Verify.class.phpÖÐÕÒµ½ÒÔÏ´úÂ룺

   //ÊÇ·ñ»­»ìÏýÇúÏß
   public $useCurve     = true;
   //ÊÇ·ñÌí¼ÓÔÓµã
   public $useNoise     = true;
   //ÑéÖ¤ÂëͼƬ¿í¶È
   public $imageW       = 130;
   //ÑéÖ¤ÂëͼƬ¸ß¶È
   public $imageH       = 50;
   //ÑéÖ¤ÂëλÊý
   public $length       = 4;
   //ÑéÖ¤Âë×ÖÌå¾Þϸ(px)
   public $fontSize     = 25;
   //ÊÇ·ñ»­ÑÕÉ«Åä¾°
   public $useZh        = false;
   //ÑéÖ¤ÂëÖÖ×Ó
   protected $seed     = '123456789QWERTYUIOPASDFGHJKLZXCVBNM';
   //ÌìÉúÑéÖ¤Âë
   public function entry(){
       //ÑéÖ¤Âë×Ö·û
       $this->code = $this->makeCode();
       session($this->seKey,$this->code);//ÑéÖ¤ÂëÉúÑĵ½SESSIONÖÐ
       $width       = ($this->length* $this->fontSize*0.9 + $this->fontSize*1.5);
       $height      = $this->fontSize*2;
       if( $this->useZh ){
           $width  = 230;
           $height = 50;
       }
       //½¨ÉèͼÏñ
       $this->image = imagecreate($width,$height);
       //ÉèÖÃÅä¾°
       if($this->useZh)
           imagecolorallocate($this->image,244, 220, 215);
       else{
           $this->bkcolor = imagecolorallocate($this->image, 255, 255, 255);
           imagefill($this->image,0,0,$this->bkcolor);
       }
       //»ìÏýÇúÏß
       if ($this->useCurve) {
           $this->writeCurve();
       }
       //ÔÓµã
       if ($this->useNoise) {
           $this->writeNoise();
       }
       //ÑéÖ¤Âë
       $this->writeCode();
       header("Cache-Control: max-age=1, s-maxage=1, no-cache, must-revalidate");
       header("Content-type: image/png;charset=utf8");
       imagepng($this->image);
       imagedestroy($this->image);
   }

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   //ÊÇ·ñ»­»ìÏýÇúÏß
   public $useCurve     = true;
   //ÊÇ·ñÌí¼ÓÔÓµã
   public $useNoise     = true;
   //ÑéÖ¤ÂëͼƬ¿í¶È
   public $imageW       = 130;
   //ÑéÖ¤ÂëͼƬ¸ß¶È
   public $imageH       = 50;
   //ÑéÖ¤ÂëλÊý
   public $length       = 4;
   //ÑéÖ¤Âë×ÖÌå¾Þϸ(px)
   public $fontSize     = 25;
   //ÊÇ·ñ»­ÑÕÉ«Åä¾°
   public $useZh        = false;
   //ÑéÖ¤ÂëÖÖ×Ó
   protected $seed     = '123456789QWERTYUIOPASDFGHJKLZXCVBNM';
   //ÌìÉúÑéÖ¤Âë
   public function entry(){
       //ÑéÖ¤Âë×Ö·û
       $this->code = $this->makeCode();
       session($this->seKey,$this->code);//ÑéÖ¤ÂëÉúÑĵ½SESSIONÖÐ
       $width       = ($this->length* $this->fontSize*0.9 + $this->fontSize*1.5);
       $height      = $this->fontSize*2;
       if( $this->useZh ){
           $width  = 230;
           $height = 50;
       }
       //½¨ÉèͼÏñ
       $this->image = imagecreate($width,$height);
       //ÉèÖÃÅä¾°
       if($this->useZh)
           imagecolorallocate($this->image,244, 220, 215);
       else{
           $this->bkcolor = imagecolorallocate($this->image, 255, 255, 255);
           imagefill($this->image,0,0,$this->bkcolor);
       }
       //»ìÏýÇúÏß
       if ($this->useCurve) {
           $this->writeCurve();
       }
       //ÔÓµã
       if ($this->useNoise) {
           $this->writeNoise();
       }
       //ÑéÖ¤Âë
       $this->writeCode();
       // ÒÔÏÂΪ´úÂëÐÞ¸Ä
       $this->reset = true;
       header("Cache-Control: max-age=1, s-maxage=1, no-cache, must-revalidate");
       header("Content-type: image/png;charset=utf8");
       imagepng($this->image);
       imagedestroy($this->image);
   }

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