SEO Url Rewrite Mod For 4images Gallery

I have just implemented a SEO url rewrite mod for 4images gallery for one of my client’s site.  4images.de photo gallery is a very nice free image gallery script but it has no in-built good SEO url rewrite mod and if you search Google for SEO url rewrite mod for 4images, you’ll not find a very good one. Here I am writing a step-by-step instruction on how to do SEO url rewrite for 4images. Before doing the following changes, take a backup of your existing 4images files. I have tested this SEO url rewrite mod for 4images on the latest version of 4images version 4images 1.7.8. If you are not running the latest version, upgrade to 4images latest 1.7.8

Step1: Create a blank .htaccess file on your server (directly under 4images folder, example: yourserver.com/4images/.htaccess) and put the following code there.

RewriteEngine On
RewriteRule ^lightbox.html$ lightbox.php?%{QUERY_STRING}
RewriteRule ^lightbox.([0-9]+).html$ lightbox.php?page=$1&%{QUERY_STRING}
RewriteRule ^search.html$ search.php?%{QUERY_STRING}
RewriteRule ^search.([0-9]+).html$ search.php?page=$1&%{QUERY_STRING}
RewriteRule ^postcard([a-zA-Z0-9]+).html$ postcards.php?postcard_id=$1&%{QUERY_STRING}
RewriteRule ^postcard.img([0-9]+).html$ postcards.php?image_id=$1&%{QUERY_STRING}
RewriteRule ^k_(.*)_([0-9]+).html categories.php?cat_id=$2&%{QUERY_STRING}
RewriteRule ^r_(.*)_([0-9]+).html details.php?image_id=$2&%{QUERY_STRING}
RewriteRule ^r([0-9]+).search.html details.php?image_id=$1&%{QUERY_STRING}

Step2: Open /include/sessions.php and replace it with this new one

<?php
/**************************************************************************
 *                                                                        *
 *    4images - A Web Based Image Gallery Management System               *
 *    ----------------------------------------------------------------    *
 *                                                                        *
 *             File: sessions.php                                         *
 *        Copyright: (C) 2002 Jan Sorgalla                                *
 *            Email: jan@4homepages.de                                    *
 *              Web: http://www.4homepages.de                             *
 *    Scriptversion: 1.7.4                                                *
 *                                                                        *
 *    Never released without support from: Nicky (http://www.nicky.net)   *
 *                                                                        *
 **************************************************************************
 *                                                                        *
 *    Dieses Script ist KEINE Freeware. Bitte lesen Sie die Lizenz-       *
 *    bedingungen (Lizenz.txt) für weitere Informationen.                 *
 *    ---------------------------------------------------------------     *
 *    This script is NOT freeware! Please read the Copyright Notice       *
 *    (Licence.txt) for further information.                              *
 *                                                                        *
 *************************************************************************/
if (!defined('ROOT_PATH')) {
 die("Security violation");
}
//-----------------------------------------------------
//--- Start Configuration -----------------------------
//-----------------------------------------------------
define('SESSION_NAME', 'sessionid');
$user_table_fields = array(
 "user_id" => "user_id",
 "user_level" => "user_level",
 "user_name" => "user_name",
 "user_password" => "user_password",
 "user_email" => "user_email",
 "user_showemail" => "user_showemail",
 "user_allowemails" => "user_allowemails",
 "user_invisible" => "user_invisible",
 "user_joindate" => "user_joindate",
 "user_activationkey" => "user_activationkey",
 "user_lastaction" => "user_lastaction",
 "user_location" => "user_location",
 "user_lastvisit" => "user_lastvisit",
 "user_comments" => "user_comments",
 "user_homepage" => "user_homepage",
 "user_icq" => "user_icq"
);
//-----------------------------------------------------
//--- End Configuration -------------------------------
//-----------------------------------------------------
function get_category_id($path,$parent_id = 0)
{
 $cat_name = array_shift($path);
 global $site_db;
 $sql = "SELECT cat_id FROM ".CATEGORIES_TABLE." WHERE cat_parent_id = $parent_id AND cat_name = '".mysql_real_escape_string($cat_name)."'";
 $result = $site_db->query($sql);
 $row = $site_db->fetch_array($result);
 if( count($path) != 0)
 {
 return get_category_id($path,$row['cat_id']);
 }
 else
 {
 return $row['cat_id'];
 }
}
//Mod_bmollet
/**
 * Get the image id
 * @param array $path An array with the path of the image
 */
function get_image_id($path)
{
 global $site_db;
 $image_name = array_pop($path);
 $cat_id = get_category_id($path);
 $sql = "SELECT image_id FROM ".IMAGES_TABLE." WHERE image_name = '".mysql_real_escape_string($image_name)."' AND cat_id = $cat_id";
 $result = $site_db->query($sql);
 $row = $site_db->fetch_array($result);
 return $row['image_id'];
}
function get_user_table_field($add, $user_field) {
 global $user_table_fields;
 return (!empty($user_table_fields[$user_field])) ? $add.$user_table_fields[$user_field] : "";
}
class Session {
 var $session_id;
 var $session_key;
 var $user_ip;
 var $user_location;
 var $current_time;
 var $session_timeout;
 var $mode = "get";
 var $session_info = array();
 var $user_info = array();
 function Session() {
 global $config;
 $this->session_timeout = $config['session_timeout'] * 60;
 $this->user_ip = $this->get_user_ip();
 $this->user_location = $this->get_user_location();
 $this->current_time = time();
 if (defined('SESSION_KEY') && SESSION_KEY != '') {
 $this->session_key = SESSION_KEY;
 } else {
 $this->session_key = md5('4images' . realpath(ROOT_PATH));
 }
 // Stop adding SID to URLs
 @ini_set('session.use_trans_sid', 0);
 //@ini_set('session.cookie_lifetime', $this->session_timeout);
 session_name(urlencode(SESSION_NAME));
 @session_start();
 $this->demand_session();
 }
 function set_cookie_data($name, $value, $permanent = 1) {
 $cookie_expire = ($permanent) ? $this->current_time + 60 * 60 * 24 * 365 : 0;
 $cookie_name = COOKIE_NAME.$name;
 setcookie($cookie_name, $value, $cookie_expire, COOKIE_PATH, COOKIE_DOMAIN, COOKIE_SECURE);
 $HTTP_COOKIE_VARS[$cookie_name] = $value;
 }
 function read_cookie_data($name) {
 global $HTTP_COOKIE_VARS;
 $cookie_name = COOKIE_NAME.$name;
 return (isset($HTTP_COOKIE_VARS[$cookie_name])) ? $HTTP_COOKIE_VARS[$cookie_name] : false;
 }
 function get_session_id() {
 if (SID == '') {
 $this->mode = "cookie";
 }
 if (preg_match('/[^a-z0-9]+/i', session_id())) {
 @session_regenerate_id();
 }
 $this->session_id = session_id();
 }
 function demand_session() {
 $this->get_session_id();
 if (!$this->load_session_info()) {
 $this->delete_old_sessions();
 $user_id = ($this->read_cookie_data("userid")) ? intval($this->read_cookie_data("userid")) : GUEST;
 $this->start_session($user_id);
 }
 else {
 $this->user_info = $this->load_user_info($this->session_info['session_user_id']);
 $update_cutoff = ($this->user_info['user_id'] != GUEST) ? $this->current_time - $this->user_info['user_lastaction'] : $this->current_time - $this->session_info['session_lastaction'];
 if ($update_cutoff > 60) {
 $this->update_session();
 $this->delete_old_sessions();
 }
 }
 }
 function start_session($user_id = GUEST, $login_process = 0) {
 global $site_db;
 $this->user_info = $this->load_user_info($user_id);
 if ($this->user_info['user_id'] != GUEST && !$login_process) {
 if ($this->read_cookie_data("userpass") == $this->user_info['user_password'] && $this->user_info['user_level'] > USER_AWAITING) {
 $this->set_cookie_data("userpass", $this->user_info['user_password']);
 }
 else {
 $this->set_cookie_data("userpass", "", 0);
 $this->user_info = $this->load_user_info(GUEST);
 }
 }
 //if (!$login_process) {
 $sql = "REPLACE INTO ".SESSIONS_TABLE."
 (session_id, session_user_id, session_lastaction, session_location, session_ip)
 VALUES
 ('".addslashes($this->session_id)."', ".$this->user_info['user_id'].", $this->current_time, '$this->user_location', '$this->user_ip')";
 $site_db->query($sql);
 //}
 $this->session_info['session_user_id'] = $this->user_info['user_id'];
 $this->session_info['session_lastaction'] = $this->current_time;
 $this->session_info['session_location'] = $this->user_location;
 $this->session_info['session_ip'] = $this->user_ip;
 if ($this->user_info['user_id'] != GUEST) {
 $this->user_info['user_lastvisit'] = (!empty($this->user_info['user_lastaction'])) ? $this->user_info['user_lastaction'] : $this->current_time;
 $sql = "UPDATE ".USERS_TABLE."
 SET ".get_user_table_field("", "user_lastaction")." = $this->current_time, ".get_user_table_field("", "user_location")." = '$this->user_location', ".get_user_table_field("", "user_lastvisit")." = ".$this->user_info['user_lastvisit']."
 WHERE ".get_user_table_field("", "user_id")." = ".$this->user_info['user_id'];
 $site_db->query($sql);
 }
 $this->set_cookie_data("lastvisit", $this->user_info['user_lastvisit']);
 $this->set_cookie_data("userid", $this->user_info['user_id']);
 return true;
 }
 function login($user_name = "", $user_password = "", $auto_login = 0, $set_auto_login = 1) {
 global $site_db, $user_table_fields;
 if (empty($user_name) || empty($user_password)) {
 return false;
 }
 $sql = "SELECT ".get_user_table_field("", "user_id").get_user_table_field(", ", "user_password")."
 FROM ".USERS_TABLE."
 WHERE ".get_user_table_field("", "user_name")." = '$user_name' AND ".get_user_table_field("", "user_level")." <> ".USER_AWAITING;
 $row = $site_db->query_firstrow($sql);
 $user_id = (isset($row[$user_table_fields['user_id']])) ? $row[$user_table_fields['user_id']] : GUEST;
 $user_password = md5($user_password);
 if ($user_id != GUEST) {
 if ($row[$user_table_fields['user_password']] == $user_password) {
 $sql = "UPDATE ".SESSIONS_TABLE."
 SET session_user_id = $user_id
 WHERE session_id = '".addslashes($this->session_id)."'";
 $site_db->query($sql);
 if ($set_auto_login) {
 $this->set_cookie_data("userpass", ($auto_login) ? $user_password : "");
 }
 $this->start_session($user_id, 1);
 return true;
 }
 }
 return false;
 }
 function logout($user_id) {
 global $site_db;
 $sql = "DELETE FROM ".SESSIONS_TABLE."
 WHERE session_id = '".addslashes($this->session_id)."' OR session_user_id = $user_id";
 $site_db->query($sql);
 $this->set_cookie_data("userpass", "", 0);
 $this->set_cookie_data("userid", GUEST);
 $this->session_info = array();
 return true;
 }
 function delete_old_sessions() {
 global $site_db;
 $expiry_time = $this->current_time - $this->session_timeout;
 $sql = "DELETE FROM ".SESSIONS_TABLE."
 WHERE session_lastaction < $expiry_time";
 $site_db->query($sql);
 return true;
 }
 function update_session() {
 global $site_db;
 $sql = "REPLACE INTO ".SESSIONS_TABLE."
 (session_id, session_user_id, session_lastaction, session_location, session_ip)
 VALUES
 ('".addslashes($this->session_id)."', ".$this->user_info['user_id'].", $this->current_time, '$this->user_location', '$this->user_ip')";
 $site_db->query($sql);
 $this->session_info['session_lastaction'] = $this->current_time;
 $this->session_info['session_location'] = $this->user_location;
 $this->session_info['session_ip'] = $this->user_ip;
 if ($this->user_info['user_id'] != GUEST) {
 $sql = "UPDATE ".USERS_TABLE."
 SET ".get_user_table_field("", "user_lastaction")." = $this->current_time, ".get_user_table_field("", "user_location")." = '$this->user_location'
 WHERE ".get_user_table_field("", "user_id")." = ".$this->user_info['user_id'];
 $site_db->query($sql);
 }
 return;
 }
 function return_session_info() {
 return $this->session_info;
 }
 function return_user_info() {
 return $this->user_info;
 }
 function freeze() {
 return;
 }
 function load_session_info() {
 if (@ini_get('register_globals')) {
 session_register($this->session_key);
 if (!isset($GLOBALS[$this->session_key])) {
 $GLOBALS[$this->session_key] = array();
 }
 $this->session_info = &$GLOBALS[$this->session_key];
 } else {
 if (isset($_SESSION)) {
 if (!isset($_SESSION[$this->session_key])) {
 $_SESSION[$this->session_key] = array();
 }
 $this->session_info = &$_SESSION[$this->session_key];
 } else {
 if (!isset($GLOBALS['HTTP_SESSION_VARS'][$this->session_key])) {
 $GLOBALS['HTTP_SESSION_VARS'][$this->session_key] = array();
 }
 $this->session_info = &$GLOBALS['HTTP_SESSION_VARS'][$this->session_key];
 }
 }
 if (!isset($this->session_info['session_ip'])) {
 $this->session_info = array();
 return false;
 }
 if ($this->mode == "get" && $this->session_info['session_ip'] != $this->user_ip) {
 if (function_exists('session_regenerate_id')) {
 @session_regenerate_id();
 }
 $this->get_session_id();
 $this->session_info = array();
 return false;
 }
 return $this->session_info;
 }
 function load_user_info($user_id = GUEST) {
 global $site_db, $user_table_fields;
 if ($user_id != GUEST) {
 $sql = "SELECT u.*, l.*
 FROM ".USERS_TABLE." u, ".LIGHTBOXES_TABLE." l
 WHERE ".get_user_table_field("u.", "user_id")." = $user_id AND l.user_id = ".get_user_table_field("u.", "user_id");
 $user_info = $site_db->query_firstrow($sql);
 if (!$user_info) {
 $sql = "SELECT *
 FROM ".USERS_TABLE."
 WHERE ".get_user_table_field("", "user_id")." = $user_id";
 $user_info = $site_db->query_firstrow($sql);
 if ($user_info) {
 $lightbox_id = get_random_key(LIGHTBOXES_TABLE, "lightbox_id");
 $sql = "INSERT INTO ".LIGHTBOXES_TABLE."
 (lightbox_id, user_id, lightbox_lastaction, lightbox_image_ids)
 VALUES
 ('$lightbox_id', ".$user_info[$user_table_fields['user_id']].", $this->current_time, '')";
 $site_db->query($sql);
 $user_info['lightbox_lastaction'] = $this->current_time;
 $user_info['lightbox_image_ids'] = "";
 }
 }
 }
 if (empty($user_info[$user_table_fields['user_id']])) {
 $user_info = array();
 $user_info['user_id'] = GUEST;
 $user_info['user_level'] = GUEST;
 $user_info['user_lastaction'] = $this->current_time;
 $user_info['user_lastvisit'] = ($this->read_cookie_data("lastvisit")) ? $this->read_cookie_data("lastvisit") : $this->current_time;
 }
 foreach ($user_table_fields as $key => $val) {
 if (isset($user_info[$val])) {
 $user_info[$key] = $user_info[$val];
 }
 elseif (!isset($user_info[$key])) {
 $user_info[$key] = "";
 }
 }
 return $user_info;
 }
 function set_session_var($var_name, $value) {
 $this->session_info[$var_name] = $value;
 return true;
 }
 function get_session_var($var_name) {
 if (isset($this->session_info[$var_name])) {
 return $this->session_info[$var_name];
 }
 return '';
 }
 function drop_session_var($var_name) {
 unset($this->session_info[$var_name]);
 }
 function get_user_ip() {
 global $HTTP_SERVER_VARS, $HTTP_ENV_VARS;
 $ip = (!empty($HTTP_SERVER_VARS['REMOTE_ADDR'])) ? $HTTP_SERVER_VARS['REMOTE_ADDR'] : ((!empty($HTTP_ENV_VARS['REMOTE_ADDR'])) ? $HTTP_ENV_VARS['REMOTE_ADDR'] : getenv("REMOTE_ADDR"));
 $ip = preg_replace("/[^.0-9]+/", "", $ip);
 return substr($ip, 0, 50);
 }
 function get_user_location() {
 global $self_url;
 return (defined("IN_CP")) ? "Control Panel" : preg_replace(array("/([?|&])action=[^?|&]*/", "/([?|&])mode=[^?|&]*/", "/([?|&])phpinfo=[^?|&]*/", "/([?|&])printstats=[^?|&]*/", "/[?|&]".URL_ID."=[^?|&]*/", "/[?|&]l=[^?|&]*/", "/[&?]+$/"), array("", "", "", "", "", "", ""), addslashes($self_url));
 }
/* ORIGINAL CODE
 function url($url, $amp = "&amp;") {
 global $l;
 $dummy_array = explode("#", $url);
 $url = $dummy_array[0];
 if ($this->mode == "get" && !preg_match("/".SESSION_NAME."=/i", $url)) {
 $url .= preg_match("/?/", $url) ? "$amp" : "?";
 $url .= SESSION_NAME."=".$this->session_id;
 }
 if (!empty($l)) {
 $url .= preg_match("/?/", $url) ? "$amp" : "?";
 $url .= "l=".$l;
 }
 $url .= (isset($dummy_array[1])) ? "#".$dummy_array[1] : "";
 return $url;
 }
*/
 function url($url, $amp = "&amp;") {
 global $l, $user_info;
 $dummy_array = explode("#", $url);
 $url = $dummy_array[0];
 $url = str_replace('&amp;', '&', $url);
 if (!defined('IN_CP')) {
 if (strstr($url, 'index.php')) {
 $url = str_replace('index.php', '', $url);
 }
 elseif (strstr($url, 'search.php')) {
 if (strstr($url, 'page=')) {
 preg_match('#page=([0-9]+)&?#', $url, $matches);
 if (isset($matches[1])) {
 $split = explode('?', $url);
 $url = $split[0];
 $query = @$split[1];
 $url   = str_replace('search.php', 'search.'.$matches[1].'.html', $url);
 $query = str_replace('page='.$matches[1].'&', '', $query);
 $query = str_replace('&page='.$matches[1], '', $query);
 $query = str_replace('page='.$matches[1], '', $query);
 if (!empty($query)) {
 $url .= '?' . $query;
 }
 }
 }
 else {
 $url = str_replace('search.php', 'search.html', $url);
 }
 }
 elseif (strstr($url, 'lightbox.php')) {
 if (strstr($url, 'page=')) {
 preg_match('#page=([0-9]+)&?#', $url, $matches);
 if (isset($matches[1])) {
 $split = explode('?', $url);
 $url = $split[0];
 $query = @$split[1];
 $url   = str_replace('lightbox.php', 'lightbox.'.$matches[1].'.html', $url);
 $query = str_replace('page='.$matches[1].'&', '', $query);
 $query = str_replace('&page='.$matches[1], '', $query);
 $query = str_replace('page='.$matches[1], '', $query);
 if (!empty($query)) {
 $url .= '?' . $query;
 }
 }
 }
 else {
 $url = str_replace('lightbox.php', 'lightbox.html', $url);
 }
 }
 elseif (strstr($url, 'categories.php')) {
 if (strstr($url, 'cat_id=') && strstr($url, 'page=')) {
 preg_match('#cat_id=([0-9]+)&?#', $url, $matches1);
 preg_match('#page=([0-9]+)&?#', $url, $matches2);
 if (isset($matches1[1]) && isset($matches2[1])) {
 $split = explode('?', $url);
 $url = $split[0];
 $query = @$split[1];
 $url   = str_replace('categories.php','k'.$matches1[1].'.'.$matches2[1].'.html', $url);
 $query = str_replace('cat_id='.$matches1[1].'&', '', $query);
 $query = str_replace('&cat_id='.$matches1[1], '', $query);
 $query = str_replace('cat_id='.$matches1[1], '', $query);
 $query = str_replace('page='.$matches2[1].'&', '', $query);
 $query = str_replace('&page='.$matches2[1], '', $query);
 $query = str_replace('page='.$matches2[1], '', $query);
 if (!empty($query)) {
 $url .= '?' . $query;
 }
 }
 }
 elseif (strstr($url, 'cat_id=')) {
 preg_match('#cat_id=([0-9]+)&?#', $url, $matches);
 if (isset($matches[1])) {
 $split = explode('?', $url);
 $url = $split[0];
 $query = @$split[1];
 $cat_url = get_category_url($matches[1]);
 $url   = str_replace('categories.php','k'.$cat_url.'.html', $url);
 $query = str_replace('cat_id='.$matches[1].'&', '', $query);
 $query = str_replace('&cat_id='.$matches[1], '', $query);
 $query = str_replace('cat_id='.$matches[1], '', $query);
 if (!empty($query)) {
 $url .= '?' . $query;
 }
 }
 }
 else {
 $url = str_replace('categories.php', 'cat.html', $url);
 }
 }
 elseif (strstr($url, 'details.php?image_id=')) {
 if (strstr($url, 'image_id=') && strstr($url, 'mode=')) {
 preg_match('#image_id=([0-9]+)&?#', $url, $matches1);
 preg_match('#mode=([a-zA-Z0-9]+)&?#', $url, $matches2);
 if (isset($matches1[1]) && isset($matches2[1])) {
 $split = explode('?', $url);
 $url = $split[0];
 $query = @$split[1];
 $url   = str_replace('details.php','r'.$matches1[1].'.'.$matches2[1].'.html', $url);
 $query = str_replace('image_id='.$matches1[1].'&', '', $query);
 $query = str_replace('&image_id='.$matches1[1], '', $query);
 $query = str_replace('image_id='.$matches1[1], '', $query);
 $query = str_replace('mode='.$matches2[1].'&', '', $query);
 $query = str_replace('&mode='.$matches2[1], '', $query);
 $query = str_replace('mode='.$matches2[1], '', $query);
 if (!empty($query)) {
 $url .= '?' . $query;
 }
 }
 }
 else {
 preg_match('#image_id=([0-9]+)&?#', $url, $matches);
 if (isset($matches[1])) {
 $split = explode('?', $url);
 $url = $split[0];
 $query = @$split[1];
 $url   = str_replace('details.php','r'.get_image_url($matches[1]).'.html', $url);
 $query = str_replace('image_id='.$matches[1].'&', '', $query);
 $query = str_replace('&image_id='.$matches[1], '', $query);
 $query = str_replace('image_id='.$matches[1], '', $query);
 if (!empty($query)) {
 $url .= '?' . $query;
 }
 }
 }
 }
 elseif (strstr($url, 'postcards.php?image_id=')) {
 preg_match('#image_id=([0-9]+)&?#', $url, $matches);
 if (isset($matches[1])) {
 $split = explode('?', $url);
 $url = $split[0];
 $query = @$split[1];
 $url   = str_replace('postcards.php', 'postcard.img'.$matches[1].'.html', $url);
 $query = str_replace('image_id='.$matches[1].'&', '', $query);
 $query = str_replace('&image_id='.$matches[1], '', $query);
 $query = str_replace('image_id='.$matches[1], '', $query);
 if (!empty($query)) {
 $url .= '?' . $query;
 }
 }
 }
 }
 if ($this->mode == "get" && strstr($url, $this->session_id)) {
 $url .= strpos($url, '?') !== false ? '&' : '?';
 $url .= SESSION_NAME."=".$this->session_id;
 }
 if (!empty($l)) {
 $url .= strpos($url, '?') ? '&' : '?';
 $url .= "l=".$l;
 }
 $url = str_replace('&', $amp, $url);
 $url .= isset($dummy_array[1]) ? "#".$dummy_array[1] : "";
 return $url;
 }
} //end of class  bassss
//Mod_bmollet bitissss
/**
 * Get the category url
 * @param int $cat_id The id of the category
 * @param string $cat_url The current status of the URL
 */
function get_category_url($cat_id,$cat_url = '')
{
 global $site_db;
 $sql = "SELECT cat_name,cat_parent_id FROM ".CATEGORIES_TABLE." WHERE cat_id = '".$cat_id."'";
 $result = $site_db->query($sql);
 $row = $site_db->fetch_array($result);
 $trans = array(","=>"","\"=>"",";"=>"",":"=>"","/"=>"","&#304;"=>"i","&#305;"=>"i","&#351;"=>"s","&#287;"=>"g","&#246;"=>"ö","Ö"=>"O","&#252;"=>"u","&#220;"=>"U","&#231;"=>"c","&#199;"=>"C","?"=>"");
 $row['cat_name']=strtr($row['cat_name'],$trans);
 $row['cat_name'] = strtr($row['cat_name'], "éèêàëâúóíáABCDEFGHIJKLMNOPQRSTUVWXYZsSiIÝIÇçöÖGgüÜýþÞðÐ","eeeaeauoiaabcdefghijklmnopqrstuvwxyzssiiiiccoogguuissgg");
 $cat_url  = '_'.str_replace('+','_',urlencode($row['cat_name'])).'_'.$cat_id.$cat_url;
 // if you want full path of category in url, put next line in comment
 //return $cat_url;
 if( $row['cat_parent_id'] != 0)
 {
 return get_category_url($row['cat_parent_id'],$cat_url);
 }
 else
 {
 return $cat_url;
 }
}
//Mod_bmollet
/**
 * Get the image url
 * @param int $image_id The id of the image
 */
function get_image_url($image_id)
{
 global $site_db;
 $sql = "SELECT cat_id,image_name FROM ".IMAGES_TABLE." WHERE image_id = '".$image_id."'";
 $result = $site_db->query($sql);
 $row = $site_db->fetch_array($result);
 $trans = array(","=>"","\"=>"",";"=>"",":"=>"","/"=>"","&#304;"=>"i","&#305;"=>"i","&#351;"=>"s","&#287;"=>"g","&#246;"=>"ö","Ö"=>"O","&#252;"=>"u","&#220;"=>"U","&#231;"=>"c","&#199;"=>"C","?"=>"");
 $row['image_name']=strtr($row['image_name'],$trans);
 $row['image_name'] = strtr($row['image_name'], "éèêàëâúóíáABCDEFGHIJKLMNOPQRSTUVWXYZsSiIÝIÇçöÖGgüÜýþÞðÐ","eeeaeauoiaabcdefghijklmnopqrstuvwxyzssiiiiccoogguuissgg");
 // if you want comlpete path to image in url, remove comment from following line
 return get_category_url($row['cat_id']).'_'.str_replace('+','_',urlencode($row['image_name'])).'_'.$image_id;
 return '_'.str_replace('+','_',urlencode($row['image_name'])).'_'.$image_id;
}
//-----------------------------------------------------
//--- Start Session -----------------------------------
//-----------------------------------------------------
define('COOKIE_NAME', '4images_');
define('COOKIE_PATH', '');
define('COOKIE_DOMAIN', '');
define('COOKIE_SECURE', '0');
$site_sess = new Session();
// Get Userinfo
$session_info = $site_sess->return_session_info();
$user_info = $site_sess->return_user_info();
//-----------------------------------------------------
//--- Get User Caches ---------------------------------
//-----------------------------------------------------
$num_total_online = 0;
$num_visible_online = 0;
$num_invisible_online = 0;
$num_registered_online = 0;
$num_guests_online = 0;
$user_online_list = "";
$prev_user_ids = array();
$prev_session_ips = array();
if (defined("GET_USER_ONLINE") && ($config['display_whosonline'] == 1 || $user_info['user_level'] == ADMIN)) {
 $time_out = time() - 300;
 $sql = "SELECT s.session_user_id, s.session_lastaction, s.session_ip".get_user_table_field(", u.", "user_id").get_user_table_field(", u.", "user_level").get_user_table_field(", u.", "user_name").get_user_table_field(", u.", "user_invisible")."
 FROM ".SESSIONS_TABLE." s
 LEFT JOIN ".USERS_TABLE." u ON (".get_user_table_field("u.", "user_id")." = s.session_user_id)
 WHERE s.session_lastaction >= $time_out
 ORDER BY ".get_user_table_field("u.", "user_id")." ASC, s.session_ip ASC";
 $result = $site_db->query($sql);
 while ($row = $site_db->fetch_array($result)) {
 if ($row['session_user_id'] != GUEST && (isset($row[$user_table_fields['user_id']]) && $row[$user_table_fields['user_id']] != GUEST)) {
 if (!isset($prev_user_ids[$row['session_user_id']])) {
 $is_invisible = (isset($row[$user_table_fields['user_invisible']]) && $row[$user_table_fields['user_invisible']] == 1) ? 1 : 0;
 $invisibleuser = ($is_invisible) ? "*" : "";
 $username = (isset($row[$user_table_fields['user_level']]) && $row[$user_table_fields['user_level']] == ADMIN && $config['highlight_admin'] == 1) ? sprintf("<b>%s</b>", $row[$user_table_fields['user_name']]) : $row[$user_table_fields['user_name']];
 if (!$is_invisible || $user_info['user_level'] == ADMIN) {
 $user_online_list .= ($user_online_list != "") ? ", " : "";
 $user_profile_link = (!empty($url_show_profile)) ? preg_replace("/{user_id}/", $row['session_user_id'], $url_show_profile) : ROOT_PATH."member.php?action=showprofile&amp;".URL_USER_ID."=".$row['session_user_id'];
 $user_online_list .= "<a href="".$site_sess->url($user_profile_link)."">".$username."</a>".$invisibleuser;
 }
 (!$is_invisible) ? $num_visible_online++ : $num_invisible_online++;
 $num_registered_online++;
 }
 $prev_user_ids[$row['session_user_id']] = 1;
 }
 else {
 if (!isset($prev_session_ips[$row['session_ip']])) {
 $num_guests_online++;
 }
 }
 $prev_session_ips[$row['session_ip']] = 1;
 }
 $num_total_online = $num_registered_online + $num_guests_online;
 //$num_invisible_online = $num_registered_online - $num_visible_online;
 $site_template->register_vars(array(
 "num_total_online" => $num_total_online,
 "num_invisible_online" => $num_invisible_online,
 "num_registered_online" => $num_registered_online,
 "num_guests_online" => $num_guests_online,
 "user_online_list" => $user_online_list,
 "lang_user_online" => str_replace('{num_total_online}', $num_total_online, $lang['user_online']),
 "lang_user_online_detail" => str_replace(array('{num_registered_online}','{num_invisible_online}','{num_guests_online}'), array($num_registered_online,$num_invisible_online,$num_guests_online), $lang['user_online_detail']),
 ));
 $whos_online = $site_template->parse_template("whos_online");
 $site_template->register_vars("whos_online", $whos_online);
 unset($whos_online);
 unset($prev_user_ids);
 unset($prev_session_ips);
}
?>

Step3: Go to templates/your_template/ Find the header.html  file and change the ‘title’ meta tag to the following:

<title>{site_name}, {image_name}</title>

Congratulations. You are done with SEO url rewrite for 4images gallery.
Problem copying the above code? Don’t worry. Download it here seo.rar

Check Demo Example: Funny Photos

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