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Revision: 11707
at February 15, 2009 21:57 by troynt
Initial Code 
function add_querystring_var($url, $key, $value) {
 $url = preg_replace('/(.*)(\?|&)' . $key . '=[^&]+?(&)(.*)/i', '$1$2$4', $url . '&');
 $url = substr($url, 0, -1);
 if (strpos($url, '?') === false) {
 return ($url . '?' . $key . '=' . $value);
 } else {
 return ($url . '&' . $key . '=' . $value);
 }
}

function remove_querystring_var($url, $key) {
 $url = preg_replace('/(.*)(\?|&)' . $key . '=[^&]+?(&)(.*)/i', '$1$2$4', $url . '&');
 $url = substr($url, 0, -1);
 return ($url);
}
Initial URL 
http://www.addedbytes.com/php/querystring-functions/
Initial Description 

                                

                                                            

                                    

                                        

                                        Initial Title
                                        

                                    

                                    
Adding and Removing Query Vars

                                

                                                            

                                    

                                        

                                        Initial Tags
                                        

                                    

                                    
php

                                

                                                            

                                    

                                        

                                        Initial Language
                                        

                                    

                                    
PHP