<?php

    // -------------------------------------------------------------------------------------
    // Captcha Creator PHP Image Displaying Script.
    // Copyright (c) 2007 Alexandru Marias. All rights reserved
    // Web: http://www.captchacreator.com
    // Phone: +40722486348
    // ----------------------------------------------------------------

    function RandomCode($min,$max) // Chose the turing code
    {
    // Choosing a random Security Code
    Global $CSrc;  // CSrc contains the characters from which the Captcha Code will be generated

    $srclen = strlen($CSrc)-1;

    // Chose the length of the turing code
    $length = mt_rand($min,$max); // Between 4 and 8 chars

    $Code = '';

    // Fill the turing string with characters and numbers from $src
    for($i=0; $i<$length; $i++)
        $Code .= substr($CSrc, mt_rand(0, $srclen), 1);

    return $Code;

    }

    // -------------------------------------------------------------------------------------
    function CheckCaptcha($Turing)
    {

    global $ImageCode;
    if ( !isset( $_SESSION['turing_string'] ) ) { $ImageCode = ''; return 1; }
        else if ( strtoupper($_SESSION['turing_string']) == strtoupper($Turing) ) { $ImageCode = 'ok'; return 1; }
            else { $ImageCode = 'wrong'; return 0; }
    }


    ?>