помогите справиться с неполадкой "Warning: explode() expects parameter 2" - Joomla 2.5: Шаблоны, разметка и макеты вывода

$my_url .= htmlentities($col)."=".htmlentities($val). "&";

<?php
/*----------------------------------------------------------------------
# FOR YOUJOOMLA LLC COPYRIGHT REMOVAL VISIT THIS PAGE 
# http://www.youjoomla.com/faq/view/you-joomla-templates-club/can-i-remove-youjoomla.com-copyright/78
# Youjoomla Default Index - 
# Licensed to - Lorenzo Vergel - YJ License - 74460-YI781275
# ---This file may not be redistributed in whole or significant part---
# Copyright (C) 2007 - 2009 YOUJOOMLA LLC . All Rights Reserved.
# @license - Copyrighted Commercial Software
# Author: YOUJOOMLA LLC
# Website: http://www.youjoomla.com
------------------------------------------------------------------------*/
defined( '_JEXEC' ) or die( 'Restricted index access' );
$yj_site = JURI::base()."templates/".$this->template;
$yj_base = JURI::base();

require( TEMPLATEPATH.DS."links.php");


$default_color = $this->params->get("defaultcolor", "blue"); // set the default yellow | blue | red | green 
$default_font  = $this->params->get("fontsize", "medium"); // SMALL | MEDIUM | BIG
$default_width = $this->params->get("sitewidth", "wide"); // WIDE | NARROW  


//TOOLS CONTROL
$showfont = $this->params->get("showfont", "1"); // SHOW FONT SWITCH = 1 | HIDE FONT SWITCH = 0
$showcolor = $this->params->get("showcolor", "1");// SHOW COLOR SWITCH = 1 | HIDE COLOR SWITCH = 0
$showwidth = $this->params->get("showwidth", "0"); // SHOW WIDTH SWITCH = 1 | HIDE WIDTH SWITCH = 0

// SUCKERFISH  MENU SWITCH // 
$menu_name = $this->params->get("menuName", "mainmenu");// mainmenu by default, can be any Joomla! menu name

//MENU STYLE SWITCH//
$menustyle = $this->params->get("menustyle", "2");  //  1 = Standard Dropdown (Suckerfish)  | 2  = SMooth Dropdown | 3  = Split Menu



// USE SERVER SIDE SCRIPT AND CSS COMPRESSION FOR FASTER PAGE LOAD 
// mod_gzip module  MUST BE ENABELED IN PHP.INI
// IF YOU ARE NOT SUER WHAT THIS IS LEAVE THIS SETTING 0
$compress = $this->params->get("compress", "0");	 // 1 = TURN COMPRESSION ON  |  0 = TURN COMPRESSION OFF 
// SEO SECTION //
$seo                    = $this->params->get ("seo", "Number 1 Joomla Templates Club");                      # JUST FOLOW THE TEXT
$tags                   = $this->params->get ("tags", "Joomla Templates by Youjoomla, Joomla Template Club, Youjoomla");# JUST FOLOW THE TEXT
$ie6notice  = $this->params->get("ie6notice", "0"); // 1 = ON | 0 = OFF   
// ADVISE VISITORS THAT THIR JAVASCRIPT IS DISABLED
$nonscript  = $this->params->get("nonscript", "0"); // 1 = ON | 0 = OFF 
#DO NOT EDIT BELOW THIS LINE//////////////////////////////////////////////////////////////////////////

// SLIDE SHELF OPTIONS//  

$slide_type                     = $this->params->get ("slide_type", "scroll");  // fade | scroll | scrollfade
$slide_pageload                 = $this->params->get ("slide_pageload", "forward");  //  forward | stop   |  Start slide on page load  | forward = yes  |  stop = no
$slide_time                     = $this->params->get ("slide_time", "3000");     //   pause between slides  1000 = 1sec
$slide_duration                 = $this->params->get ("slide_duration", "500");     //    slide transition speed

require( TEMPLATEPATH.DS."styleswitcher.php");



//START COLLAPSING THAT MODULE:)
$left = $this->countModules( 'left' );
$right = $this->countModules( 'right' );
if ( $left  &&  $right  ) {
	
	$leftblock  = '28%';
	$midblock = '48%';
	$rightblock  = '24%';
	$wrap    = 'wrap';
    $insidewrap='insidewrap';
	
	}elseif ( $left) {
	$midblock = '65%';
	$leftblock  = '35%';
	$wrap    = 'wrapblank';
	$insidewrap='insidewrapblank';
	
	}elseif ( $right) {
	$midblock = '65%';
	$rightblock  = '35%';
	$wrap    = 'wrap';
	$insidewrap='insidewrapblank';

	} else {
    $midblock = '100%';
	$wrap    = 'wrapblank';
	$insidewrap='insidewrapblank';
	}



//START COLLAPSING 

$botm2 = 0;
if ($this->countModules('user4')) $botm2++;
if ($this->countModules('user5')) $botm2++;
if ( $botm2 == 2 ) {
	$user4_width = '40%';
	$user5_width = '60%';
} else if ($botm2 == 1) {
	$user4_width = '100%';
	$user5_width = '100%';
}


$bottom3 = 0;
if ($this->countModules('user6')) $bottom3++;
if ($this->countModules('user7')) $bottom3++;
if ($this->countModules('user8')) $bottom3++;
if ( $bottom3 == 3 ) {
	$bottomwidth = '33.3%';}
elseif ( $bottom3 == 2 ) {
	$bottomwidth = '50%';
} else if ($bottom3 == 1) {
	$bottomwidth = '100%';
}


$bottom4 = 0;
if ($this->countModules('user9')) $bottom4++;
if ($this->countModules('user10')) $bottom4++;
if ($this->countModules('user11')) $bottom4++;
if ($this->countModules('user12')) $bottom4++;
if ( $bottom4 == 4) {
	//$bottom4width = '24.9%';
	$bottom4width9 = '22%';
	$bottom4width10 = '22%';
	$bottom4width11 = '22%';
	$bottom4width12 = '33.5%';
	}
elseif ( $bottom4 == 3 ) {
	//$bottom4width = '33.3%';}
	$bottom4width9 = '33.3%';
	$bottom4width10 = '33.3%';
	$bottom4width11 = '33.3%';
	$bottom4width12 = '33.3%';
}elseif ( $bottom4 == 2 ) {
	//$bottom4width = '50%';
	$bottom4width9 = '50%';
	$bottom4width10 = '50%';
	$bottom4width11 = '50%';
	$bottom4width12 = '50%';
} else if ($bottom4 == 1) {
	//$bottom4width = '100%';
	$bottom4width9 = '100%';
	$bottom4width10 = '100%';
	$bottom4width11 = '100%';
	$bottom4width12 = '100%';	
	
}	

$advert1 = 0;
$users = 0;
if ($this->countModules('advert1')) $advert1++;
if ($this->countModules('user1')) $users++;
if ($this->countModules('user2')) $users++;
if ($this->countModules('user3')) $users++;

if ($advert1 && $users){
$advert1_w = '71%';
$advert2_w = '27%';
}elseif($users){
$advert1_w = '100%';
}else if($advert1){
$advert2_w = '100%';
}



	$SlideBox_m ="99%";
	
	
	
$adverts_show = 0;
$users_show = 0;
if ($this->countModules('advert1')) $adverts_show++;
if ($this->countModules('user1')) $users_show++;
if ($this->countModules('user2')) $users_show++;
if ($this->countModules('user3')) $users_show++;
	
if ($default_width == "wide" && $adverts_show && $users_show){
$SlideBox_w ="590px";
$slideshow_w ="590px";
$SlideBox_bw ="580px";
$SlideBox_f ="1770px";
}elseif ($default_width == "wide" && $users_show){
$SlideBox_w ="850px";
$slideshow_w ="850px";
$SlideBox_bw ="840px";
$SlideBox_f ="2250px";
}elseif($default_width == "narrow" && $adverts_show && $users_show){
$SlideBox_w ="465px";
$slideshow_w ="465px";
$SlideBox_bw ="455px";
$SlideBox_f ="1395px";
}elseif($default_width == "narrow" && $users_show){
$SlideBox_w ="680px";
$slideshow_w ="680px";
$SlideBox_bw ="670px";
$SlideBox_f ="2040px";
}



// -- figure out what URL to use for prefix
// -- Loop through existing prefix to get all of the variables
$my_vars = $_GET;
$my_url = "";
if(!empty($my_vars)) {
// -- Loop through the vars that are passed and make sure they are not any of the reserved ones
foreach($my_vars as $col => $val) {
if($col != "change_font" && $col != "change_width" && $col != "change_css") {
$my_url .= htmlentities($col)."=".htmlentities($val). "&amp;";
}
}
$my_request = $_SERVER["PHP_SELF"]."?".strip_tags(substr($my_url, 0, -5),"&amp;")."&amp;"; // -- Add some more
}else{
$my_request = $_SERVER["PHP_SELF"]."?"; // -- All alone
}
function getCurrentURL(){
$cururl = JRequest::getURI();
if(($pos = strpos($cururl, "index.php"))!== false){
$cururl = substr($cururl,$pos);
}
$cururl = JRoute::_($cururl);
$cururl = ampReplace($cururl);
return $cururl;
}

if ($compress == 1){
$jsextens ='php';
$cssextens ='php';
}else{
$jsextens ='js';
$cssextens ='css';
}

foreach($my_vars as $col => $val) {
var_dump($val);
...