how to used wordpress function inside the custom function?

Question

<?php function tms_footerWidget(){
    global $wpdb;
    $results = $wpdb->get_results( "SELECT `tms_footerColumns` FROM `wp_tms`");
        foreach ($results as $row) {
           $tms_footerWidget = $row->tms_footerColumns;
            }
      $colsOne="<div class="col-xs-12 col-md-12 col-sm-12"><div class="thumbnail"><?php dynamic_sidebar('tms_footer2'); ?></div>";
    return $colsOne;
  }
?>

and after i have used this function in my html code and i run my php page at that that time these function could not working ..so i see in inspect elements following type of the error plz..tell me answer of this problem...

Answer 1

You haveto pass wordpress hook as you are using custom function. (i.e., add_action('wp_head', 'tms_footerWidget'))