<?php 
  session_start(); 
  resimolustur(); 
  exit(); 
   
  function resimolustur() 
  { 
      $md5_hash = md5(rand(0,999));  
      
      $parola = substr($md5_hash, 15, 5);  
   
      
      $_SESSION["parola"] = $parola; 
   
      
      $width = 120; 
      $height = 90;  
   
       
      $resim = imagecreate($width, $height);   
   
      
      $beyaz = imagecolorallocate($image, 0, 0, 0); 
      $siyah = imagecolorallocate($image, 255, 255, 255); 
      $gri = imagecolorallocate($image, 204, 204, 204); 
   
      
      imagefill($resim, 0, 0, $siyah);  
   
     
      imageline($resim, 6, 15, 7, $parola, $beyaz);  
   
     
      imagerectangle($resim,0,0,$width-1,$height-1,$gri);  
      imageline($resim, 0, 5, $width, 5, $gri);  
      imageline($resim, 0, 25, $width, 25, $gri);  
      imageline($resim, $width/4, 0, $width/4, $height, $gri);  
     
      header("Content-Type: image/jpeg");  
   
       
      imagejpeg($resim); 
      
      imagedestroy($resim); 
  } 
  ?>