<?php
    /*
     * This software is part of the Tiger php news system
     * http://tpns.sourceforge.net
     * 
     * This software comes with ABSOLUTELY NO WARRANTY. For details, see
     * the enclosed file COPYING for license information (GPL). If you
     * did not receive this file, see http://www.gnu.org/licenses/gpl.txt.
     * 
     */
    $string="";
    $keylength=6;
    for( $i=0;$i<$keylength;$i++)
    {
        $type=rand(0,9);
        $string.=$type;
    }

    Header("Content-type: image/png");
    include( 'config.php' );

    if ($usedbsessions)
    {
        require_once( 'Main.php' );
        $main = new Main();
        require_once( 'sessions.php' );
        $session = new session();
        $session->setMain($main);
        session_set_save_handler(array(&$session,"open"), array(&$session,"close"), array(&$session,"read"), array(&$session,"write"), array(&$session,"destroy"), array(&$session,"gc")); 
    }
    session_start();
    //$string=rand(10000,99999);
    //$string="023456789abcdefghklmnpqrstuvxyzABCDEFGHKLMNPRSTUVXYZ";
    $_SESSION['imgkey']=$string;
    $font=5;
    $width  = imagefontwidth($font) * (strlen($string)+2);
    $fwidth=imagefontwidth($font);
    $height = imagefontheight($font);
    $im = ImageCreate($width, $height);
    $white = ImageColorAllocate($im, 255, 255, 255);
    $black = ImageColorAllocate($im, 0, 0, 0);
    ImageFill($im, 0, 0, $white);

    ImageString ($im, $font , $fwidth , 0, $string, $black); 

    ImageLine($im, 0, ($height/6)*2 , $width,($height/6)*2 , $black);     
    ImageLine($im, 0, ($height/6)*4 , $width, ($height/6)*4, $black);     

    for($i = 1; $i <= strlen($string)+2; $i++) 
    {
        ImageLine($im, ($fwidth*$i)-($fwidth/2), 0 , ($fwidth*$i)-($fwidth/2), $height, $black);     
    }
    ImagePNG($im);
?>