请高手给我指教一下,想在每个网页中去调用点击率的函数,请把我下面的程序指正下
  <?php
  class cs{  
private $file=array("1"=>"1.txt","2"=>"2.txt","3"=>"3.txt");
private $imagetext="D:/phptest/pic1/";
private $imagetxt=".jpg";
public function cishu(){
for($k=1;$k<=count($this->file);$k++){
if(!file_exists($this->file[$k]))
   {
      $this->fp=fopen($this->file[$k],"w");
  fputs($this->fp,"0");
        }
else
   {
       $this->fp=fopen($this->file[$k],"r+");
        }
}$this->numcount=fread($this->fp,filesize($this->file[$k]));
fclose($this->fp);
$this->numcount++;
$this->fp=fopen($this->file[$k],"w");
fputs($this->fp,$this->numcount);
fclose($this->fp);
$this->len=strlen($this->numcount);
for($j=0;$j<$this->len;$j++)
   {
      echo "<img width='20px'src=";
  echo $this->imagetext;
  echo substr($this->numcount,$j,1);
  echo $this->imagetxt;
  echo ">";
   }}}
$pic=new cs();
$pic->cishu();
?>