include/functions.php

function get_editor() {

 		function getusertheme() {
			global $mkportals, $mklib, $Skin, $DB, $mklib_board;
			$templates = array();
			$userid = $mkportals->member['id'];
			$query = $DB->query("Select template from mkp_usertheme where userid = $userid");
			$row = mysql_fetch_array($query);
			if (strpos($_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI'], $mklib->forumpath)>0){
				$folder = "../mkportal/templates/";
				$path = "../";
			}
			else{
				$folder = "./mkportal/templates/";
				$path = "";
			}
			if ($dir = opendir($folder)) {
				while (($theme = readdir($dir)) !== false ){
					if ($theme == '.' || $theme == '..' || $theme == 'temp' || substr($theme , -5,1) == '.' || substr($theme , -4,1) == '.' || substr($theme , -3,1) == '.')
						continue;
					if ($row['template'])
						$isselected = ($row['template'] == $theme) ? "selected" : "";
					$option .= "<option $isselected value=\"$theme\">$theme</option>";
				}
				closedir($dir);
				$select = "<select name=\"themex\">" . $option . "</select>";
				$form = "<form style=\"margin: 0px\" method=\"post\" action=\"".$path."index.php?tid=1\">$select&nbsp;<input class=\"button\" type=\"submit\" value=\"إذهب\"></form>";
				$out .= "
				<tr>
				  <td class=\"alt1\" align=\"center\"><br>$form<br></td>
				</tr>";
			}
			return $out;

		}

$mklib = new mklib;

	$userid = $mkportals->member['id'];
	$query = $DB->query("Select template from mkp_usertheme where userid = $userid");
	$row = mysql_fetch_array($query);
	if ($row['template'] && is_file ("".$MK_PATH."mkportal/templates/".$row['template']."/tpl_main.php")) {
	     $MK_TEMPLATE = $row['template'];
	}

modules/contents/index.php

$content = "";

  $tid = $mkportals->input['tid'];
  if ($tid) {
   $themex = $mkportals->input['themex'];
   $userid = $mkportals->member['id'];
   $query = $DB->query("select template from mkp_usertheme Where userid = $userid");
   $row = mysql_fetch_array($query);
   if ($row['template'])
    $update = $DB->query("update mkp_usertheme set template = '$themex' where userid = $userid");
   else
    $insert = $DB->query("insert into mkp_usertheme (userid, template) Values ($userid, '$themex')");
   header("location: /");
   exit;
  }

CREATE TABLE `mkp_usertheme` (
`userid` INT( 10 ) NOT NULL DEFAULT '0',
`template` VARCHAR( 50 ) NOT NULL ,
PRIMARY KEY ( `userid` ) 
) ENGINE = MYISAM ;

include/functions.php

 $userid = $mkportals->member['id'];
 $query = $DB->query("Select template from mkp_usertheme where userid = $userid");
 $row = mysql_fetch_array($query);
 if ($row['template'])
  $MK_TEMPLATE = $row['template'];

	$userid = $mkportals->member['id'];
	$query = $DB->query("Select template from mkp_usertheme where userid = $userid");
	$row = mysql_fetch_array($query);
	if ($row['template'] && is_file ("".$MK_PATH."mkportal/templates/".$row['template']."/tpl_main.php")) {
	     $MK_TEMPLATE = $row['template'];
	}