<?php
#----------------------------------------------\
#----------------------------------------------\
#  ADVANCED RANDOM              4.13.06        ||
#        SIGNATURE SCRIPT         By:  Boost   ||
#----------------------------------------------//
#----------------------------------------------\
# SCRIPT INFO:                                 ||
#----------------------------------------------\
#    This script will generatea random         ||
#    signature (or image). If features 2       ||
#    options:                                  ||
#       1. Type in your images in an array     ||
#       2. Put all your images in a directory  ||
#          and the system will read the images ||
#----------------------------------------------//
#----------------------------------------------\
# FUNCTIONS USED IN SCRIPT:                    ||
#----------------------------------------------//
#    - requice                                 ||
#    - for and while loops                     ||
#    - explode                                 ||
#    - isdir, opendir, readdir, closedir       ||
#    - arrays                                  ||
#    - header('Location: ')                    ||
#----------------------------------------------//
#----------------------------------------------\
#  ABOUT:                                      ||
#----------------------------------------------//
#    Author: Boost (Akash Narkhede)            ||
#    Published At:                             ||
#        http://www.pixel-designz.net/         ||
#    Personal Website:                         ||
#        http://www.hidden-dimensions.net/     ||
#    AIM: boost0728                            ||
#    MSN: boost0728@gmail.com                  ||
#    E-MAIL: boost0728@gmail.com               ||
#----------------------------------------------//
#----------------------------------------------//

// Type in the file types you want to be allowed
// Include the '.' in front of the extensions, or it won't be recognized
$file_types = array(
    '.gif',
    '.jpg',
    '.jpeg',
    '.png',
    '.bmp',
    '.tiff'
);

// Set the path to same folder:
path = './';
   
// Set the DocumentRoot:
$document = explode('/', $_SERVER['PHP_SELF']);
// The above takes the full url of the script,
// and explodes it based on every / it finds and stores it as an array in $document

$path_use = '';

// Now destroy the Script-Name and create the $path_use variable:
for ($i = 0; $i <= (count($document)-2); $i++) {
    if ($document[$i] != '') {
        $path_use .= '/' . $document[$i];
    }
}
// This code might look tricky but it's not
// It counts the $document array and subtacts 2 because the array starts at 0 (that's 1)
// You have to subtract another value to get rid of the last array value which will contain the script name (adv_rsig.php - that's 2)
// If the value is not blank, it will append it to the $path_use variable with .= and add a / in front of it
// If everything is blank, nothing will be added to $path_use, and it will remain as ''

// Add a trailing / at the end of $path_use:
$path_use .= '/';
   

// Set the url:
$domain = $_SERVER['HTTP_HOST'];

############# BEGIN SCRIPT - NO NEED TO MODIFY BELOW ############

// Select whether you would like the automated directory reading, where you upload your sigs to a folder, and the system
// will automatically take care of the rest
// Set variable choice to 'dir' or 'array' based on preference
$choice = 'dir';
// If you choose dir the system will take all the images in a specified directory, make sure they are the correct file type, and then put them in the sig changer
// If you choose array, you have to manually add the url's to the images (good if you have a generic images folder)

// Make $images an array
$images = array();

if ($choice == 'dir') {
    // NOTE: If your images are IN THE SAME folder as your adv_rsig.php file, $dir_path = './';
    $dir_path = 'images/sigs/';
   
    // Make sure $dir_path exists
    if (!is_dir($dir_path)) {
        // If $dir_path doesn't exist, echo an error and terminate the script:
        exit($dir_path . 'does not exist. Please use a valid directory.');
    } else { // $dir_path must exist..
        // Open the directory:
        if ($dh = opendir($dir_path)) {
            // Read the directory, this is the correct way to read the directory
            // $file now contains an array of all the files in the array
            while (($file = readdir($dh)) !== false) {
            /* The WRONG way to loop over a directory is:
                 while ($file = readdir($handle)) {
                     echo "$filen";
                 }
            */
                // Get the extension of the file:
                // strrchr gets the last instance of the '.' in the variable file, obviously, the extension..
                // strtolower lowercases the extension incase it is capitalized, ie. .JPG or .GIF, this is only to check the extension in the array
                $ext = strtolower(strrchr($file,'.'));
                /* The below if statement checks for a few things
                    1. Is $file the folder itself "."? If it is, we don't need it
                    2. Is $file the folder above (even if it is the root folder)? Again, we don't need it
                    3. Does the link to $file exist?
                    4. Is the file type extension ($ext) in the allowed array?
                   
                    If all of the requirements are satisfied: add the file to the $images array, which will be used to get the random sig
                */
                if ( $file != '.' && $file != '..' && is_file($dir_path.$file) && in_array($ext, $file_types) ) {
                    $images[] = $path_use . $dir_path . $file;
                }# end if statement
            }# end readdir($dh) while loop
        }# end if( $dh = opendir($dir_path) )
       
        // We are done with the directory now, so we can close it:
        closedir($dh);
    }# end is_dir($dir_path)
   
    // Now that all the sigs are stored in the $images array, we need to display only 1 of the images in it:
    // So...count up the array, subtract 1 from the count() because arrays start at 0, and forward the script to the signature
    // We use rand(min,max) to select a random image
    $get_sig = rand(0, count($images)-1);
    $url = 'http://'.$domain.$path_use.$images[$get_sig];
   
    header('Location:  '.$url);
   
#### END DIRECTORY OPTION ####
####  BEGIN ARRAY OPTION  ####
} elseif ($choice == 'array') {
    // Require the sig_array.php file
    // We use require instead of include because require returns a FATAL error and terminates the script while include only returns an error
    require('sig_array.php');
   
    // Count up the array, and forward to the signature
    // Once again you -1 from count() becasue arrays start at 0
    // And again...rand(min,max)
    $get_sig = rand(0, count($images)-1);
    header('Location: '. $images[$get_sig]);

#### END ARRAY OPTION ####
}

// If for some reason $choice is not 'dir' or 'array' nothing will happen
// To use this script in a forum use this code:
// [IMG][URL]http://www.yoursite.com/path/to/adv_rsig.php[/URL][/IMG]

// Enjoy!
// If you have any questions/comments see the table at the very top for contact info :)

?>

<?php

// Make $sig_aray an array:
$sig_array = array();

// Now add the pictures you want:
$sig_array[] = 'http://www.mysite.com/images/image1.jpg';
$sig_array[] = 'http://www.mysite.com/flower.jpg';

// To add your own pictures follow the format:
$sig_array[] = 'http://www.domain.com/full/path/to/image.extension';

// NOTE: it is a MUST that you include the FULL path to your image, INCLUDING the http://
?>