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1. leviputna
   Member
   Posted 3 years ago #

   I am having a little trouble with the settings page in the template I am working on.

   In the function.php file I have a hook that creates an “Theme Options” page that allows admin to upload a new header image for the theme.

   The problem is that the functions page is causing problems with the rest of the admin site.

   Whenever I try and create a new page I get a header already sent error.
   

   Warning: Cannot modify header information - headers already sent by (output started at /home/clubsdot/public_html/wp-content/themes/subway/functions.php:59)

   Below is a copy of my functions file, this has me stumped, anyone knows what is causing the problem?

   Thanks,
   Levi Putna

   <?php
   // Hook for adding admin menus
   add_action('admin_menu', 'add_menu');
   
   function add_menu() {
      add_theme_page(__('Theme Options'), __('Theme Options'), 8, basename(__FILE__), theme_options);
   }
   
   function theme_options(){
   ?>
   <div class="wrap">
   <h>
   	<h2>Current Theme Options</h2>
   
   	<form id="post" method="POST" enctype="multipart/form-data" action="" name="post">
   		<div class="wrap">
   			<div id="poststuff">
               <br />
   				<div id="submitpost" class="submitbox">
                   	<div class="inside">
                       <h4>Header image</h4>
                       <p>Header images must be in jpg format with a minimum width of 800px and a height of 200px.</p>
                   	</div>
                       <p class="submit">
                       	<input id="save-post" class="button button-highlighted" type="submit" tabindex="4" value="Save" name="save"/>
   						<br class="clear"/>
                       </p>
                   </div>
                   <div id="post-body">
                       <div id="titlediv">
                       	<h3>Header Image</h3>
                           <div id="titlewrap">
                             <input id="header_image" type="file" c name="header_image" tabindex="1" size="96" />
                           </div>
                           <?php
                          if($_POST){
                               if (is_uploaded_file($_FILES['header_image']['tmp_name'])){
       include_once($sStyleFolder . 'images/header/generator.php');
       $header =  generateHeader($sStyleFolder, $_FILES['header_image']);
   }
                           }
   
   			?>
                       </div>
                   </div>
   			</div>
   		</div>
   	</form>
   
   </div>
   
   <?php
   }
   
   ?>
   
   <?php
   if ( function_exists('register_sidebar') )
   register_sidebar(array('name'=>'Page_Sidebar',
   'before_widget' => '',
   'after_widget' => '',
   'before_title' => '<h3>',
   'after_title' => '</h3>',
   ));
   
   register_sidebar(array('name'=>'Post_Sidebar',
   'before_widget' => '',
   'after_widget' => '',
   'before_title' => '<h3>',
   'after_title' => '</h3>',
   ));
   
   register_sidebar(array('name'=>'Search_Sidebar',
   'before_widget' => '',
   'after_widget' => '',
   'before_title' => '<h3>',
   'after_title' => '</h3>',
   ));
   
   register_sidebar(array('name'=>'Single_Sidebar',
   'before_widget' => '',
   'after_widget' => '',
   'before_title' => '<h3>',
   'after_title' => '</h3>',
   ));
   
   register_sidebar(array('name'=>'Header',
   'before_widget' => '',
   'after_widget' => '',
   'before_title' => '<h3>',
   'after_title' => '</h3>',
   ));
   
   ?>

2. leviputna
   Member
   Posted 3 years ago #

   Problem solved. These little buggers were causing the problem.
   

   ?>
   
   <?php

   If amyone else is having this problem see http://codex.wordpress.org/FAQ_Troubleshooting#How_do_I_solve_the_Headers_already_sent_warning_problem.3F

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