Wordpress Url rewriting not working - wordpress

Question

I am using Wordpress 3.5. I have created a page with name tpage. I want to pass query string like this tpage/param1. For this i have paste following code in functions.php but it is not working
add_rewrite_tag('%var1%','([^&]+)');`
add_rewrite_rule('^tpage/([^&]+)/?','index.php?page_id=4&var1=$matches[1]','top');
//Ensure the $wp_rewrite global is loaded
global $wp_rewrite;
//Call flush_rules() as a method of the $wp_rewrite object
$wp_rewrite->flush_rules();
What thing i am missing out here?

Answer 1

Theres a great class for this by someone called Kyle E that does all the heavy lifting for you.. you have to use get_query_var('Your-Var'); to get the var out. $_GET doesnt work. good luck!
<?php
/*
//Author Kyle E Gentile
//To use this class you must first include the file.
//After including the file, you need to create an options array. For example:
$options = array(
'query_vars' => array('var1', 'var2'),
'rules' => array('(.+?)/(.+?)/(.+?)/?$' => 'index.php?pagename=$matches[1]&var1=$matches[2]&var2=$matches[3]')
);
//After creating our $option array,
//we will need to create a new instance of the class as below:
$rewrite = new Add_rewrite_rules($options);
//You must pass the options array, this way. (If you don't there could be problems)
//Then you can call the filters and action functions as below:
add_action('wp_head', array(&$rewrite, 'flush_rules'));
add_action( 'generate_rewrite_rules', array(&$rewrite, 'add_rewrite_rules') );
add_filter( 'query_vars', array(&$rewrite, 'add_query_vars') );
//That is it.
*/
//prevent duplicate loading of the class if you are using this in multiply plugins
if(!class_exists('add_rewrite_rules')){
class Add_rewrite_rules{
var $query_vars;
var $rules;
function __construct($options){
$this->init($options);
}
function init($options){
foreach($options as $key => $value){
$this->$key = $value;
}
}
function rules_exist(){
global $wp_rewrite;
$has_rules = TRUE;
foreach($this->rules as $key => $value){
if(!in_array($value, $wp_rewrite->rules)){
$has_rules = FALSE;
}
}
return $has_rules;
}
//to be used add_action with the hook 'wp_head'
//flushing rewrite rules is labor intense so we better test to see if our rules exist first
//if the rules don't exist flush its like after a night of drinking
function flush_rules(){
global $wp_rewrite;
if(!$this->rules_exist()){
//echo "flushed"; // If want to see this in action uncomment this line and remove this text and you will see it flushed before your eyes
$wp_rewrite->flush_rules();
}
}
//filter function to be used with add_filter() with the hook "query_vars"
function add_query_vars($query_vars){
foreach($this->query_vars as $var){
$query_vars[] = $var;
}
return $query_vars;
}
//to be used with a the add_action() with the hook "generate_rewrite_rules"
function add_rewrite_rules(){
global $wp_rewrite;
$wp_rewrite->rules = $this->rules + $wp_rewrite->rules;
}
}
}
?>