I have three dropdown filters on the front site to select country, territory and region and need to redirect the user to the country/territory/region page depending upon the filter values on click of Submit button.

FYI, I have pages with the same slug.eg- example.com/country-name/territory-name/region-name

I am trying to use wp_redirect( $final_url ); exit; but it is throwing a warning-

Warning: Cannot modify header information - headers already sent by (output started at E:\path\to\root-folder\wp-includes\class.wp-styles.php:154) in E:\path\to\root-folder\wp-includes\pluggable.php on line 1121

Please help.

Can someone suggest me some some better way?

//Edit- here is my code

if(isset($_POST['submit']) and $_POST['action']=='findurl')
        //Result $POST Array ( [countrySelect] => 1 [territorySelect] => 1 [regionSelect] => 2 )
        if (isset($_POST['countrySelect'])){

            $rows_country_url = $wpdb->get_results("select url from country where id=".$_POST['countrySelect']."");

        if (isset($_POST['territorySelect'])){

            $rows_territory_url = $wpdb->get_results("select url from territory where id=".$_POST['territorySelect']."");

        if (isset($_POST['regionSelect'])){

            $rows_region_url = $wpdb->get_results("select url from region where id=".$_POST['regionSelect']."");

        if($rows_country_url[0]->url !=''){
        $final_url = home_url('/').$rows_country_url[0]->url;}

        if($rows_territory_url[0]->url !=''){
        $final_url = $final_url.'/'.$rows_territory_url[0]->url;}

        if($rows_region_url[0]->url !=''){
        $final_url = $final_url.'/'.$rows_region_url[0]->url;}

        echo $final_url;

        wp_redirect( home_url() ); exit;
        echo "not blank";
        }else{ echo "Please select values";}
  • Where are you using wp_redirect? You can't output any HTML and then call wp_redirect. It must be called before you output any content to the browser. Show some code.
    – Todd Rowan
    Jun 27, 2014 at 8:35
  • Hi Todd, I have edited my question to show the code. Please have a look. Jun 27, 2014 at 8:54

2 Answers 2


Please make sure these is no data output or blank spaces above wp_redirect( $final_url ); exit; otherwise this warning will always appear.

Also optionally you can use

//Php code 
<script type="text/javascript">
//php code
  • this script works like a charm and solved my purpose. Not sure why wp_redirect not working after removing the echo statements and removing spaces between the arguments. My from action is <?php the_permalink()?> Should I need to call any function and put this code in it to use wp_redirect? Jun 27, 2014 at 9:40
  • There can be any data output before redirect , You need to debug alot where it is exactly. Jun 30, 2014 at 15:23

My solution is.

  1. Create a function for javascript redirect.

    function rm_redirect($url){ $string = ''; $string .= 'window.location = "' . $url . '"'; $string .= ''; echo $string; }

  2. Call this function whenever you want like this.


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