<?php
    error_reporting
(E_ALL E_DEPRECATED);
    
mysqli_report(MYSQLI_REPORT_OFF);
    include 
"include/variables.php";
    include 
"include/functions.php";
    include 
"include/errors.php";
    include 
"include/getip.php";
    
$PHP_SELF=$_SERVER['PHP_SELF'];
    if (isset(
$_SERVER['HTTP_ACCEPT_ENCODING']) && substr_count($_SERVER['HTTP_ACCEPT_ENCODING'], 'gzip')) {
        if (
ob_get_length()) ob_end_clean();
        
ob_start("ob_gzhandler");
    }
    else 
ob_start();
    
$allow=true;
    include 
"include/ipfilter.php";
    include 
"include/bans.php";
    if (
$allow) {
        
mt_srand((double)microtime()*1000000);
        include 
"include/iplog.php";
        include 
"include/browser.php";

    if (!isset(
$_GET['debug'])) {
        
ob_start();
    }
    
$br = new Browser;
    
$text="";
    if(isset(
$_GET['agent'])) $br->setUserAgent($_GET['agent']);
    
        
$text="Your IP: $ip".($host?(" (".$host.")"):"").(!empty($proxy)?("\nProxy: ".$proxy):"");
        
$text.="\nYour Browser: ".$br->getBrowser()." ".$br->getVersion()." OS: ".$br->GetPlatform();
    
$font="./fonts/georgia.ttf";
    
$size=11$angle 0;
    
    
$W=600;
    
$H=200;
    
$lines=explode("\n",$text);
    
$LW=Array();
    
$LH=Array();
    foreach(
$lines as $line) {
        
$testimg imagecreatetruecolor($W$H);
        
imageantialias($testimg,true);
        
$testcolor imagecolorallocate ($testimg255255255);
        
$testbg =  imagecolorallocate ($testimg000);
        
imagefill($testimg00$testbg);
        
imagettftext($testimg$size$angle,100,100,$testcolor,$font,$line);
        
$min_x=$W;
        
$min_y=$H;
        
$max_x=0;
        
$max_y=0;
        for(
$x 0$x $W$x++)
            for(
$y 0$y $H$y++)
                if (
imagecolorat($testimg$x$y) !== $testbg){
                    if(
$min_x $x$min_x $x
                    if(
$min_y $y$min_y $y
                    if(
$max_x $x$max_x $x;
                    if(
$max_y $y$max_y $y;
                }
        
        
$LW[]=$max_x-$min_x;
        
$LH[]=$max_y-$min_y;
        
imagedestroy($testimg);
    }
    
$W=max($LW)+6;
    
$H=array_sum($LH)+6;
    if (isset(
$_GET['debug'])) echo "$W $H\n";
    
$image imagecreatetruecolor($W$H);
    
$c_min=0;
    
$c_max=164;
    
$b_min=240;
    
$b_max=255;
    
$back imagecolorallocate ($image
        
mt_rand($b_min,$b_max), 
        
mt_rand($b_min,$b_max), 
        
mt_rand($b_min,$b_max)
    );
    
$color imagecolorallocate ($image
        
mt_rand($c_min,$c_max), 
        
mt_rand($c_min,$c_max), 
        
mt_rand($c_min,$c_max)
    );   
    
imagefill($image00$back);
    
imagerectangle($image00$W-1$H-1$color);

    
imagefilter($imageIMG_FILTER_SMOOTH6);

    
$x=1;
    
$y=1;
    for(
$i=0$icount($lines); $i++) {
        
$y+=$LH[$i]+3;
        
$color imagecolorallocate ($image
            
mt_rand($c_min,$c_max), 
            
mt_rand($c_min,$c_max), 
            
mt_rand($c_min,$c_max)
        );
        
imagettftext($image$size$angle$x$y-4$color$font,  $lines[$i]);
    }
      if (!isset(
$_GET['debug'])) header("Content-Type: image/jpeg"); 
      else 
header("Content-Type: text/plain"); 
      
$name=explode("."basename($PHP_SELF));
    if (!isset(
$_GET['debug'])) {
        
header("Content-disposition:inline; filename=".$name[0].".jpg"); 
        
header("Cache-Control: no-store, no-cache, must-revalidate");
        
header("Cache-Control: post-check=0, pre-check=0"false);
        
header('Pragma: no-cache');
        
header("Expires: -1");
          
imagejpeg($image);
          
imagedestroy($image);
    } else {
        
ob_end_flush();
    }
    } else echo 
"BANNED";
?>

You can also check other includes below (some files are hidden as they are in exclusion list):
functions.php
errors.php
getip.php
ipfilter.php
bans.php
iplog.php
browser.php