Change List of subpages to be displayed in two columns – but keep alphabetical order

[nichart]

Hey, complete newbie here! I use the code below to list my subpages on specific page. However I would like to display the list in two columns.

<?php
    global $wp_query;
    if( empty($wp_query->post->post_parent) ) 
      {
         $parent = $wp_query->post->ID;
      } 
    else 
     {
         $parent = $wp_query->post->post_parent;
     } 
?>
<?php if(wp_list_pages("title_li=&child_of=$parent&echo=0" )): ?>
    <div id="submenu1">
     <ul>
      <?php wp_list_pages("title_li=&child_of=$parent" ); ?>
     </ul>
    </div>
<?php endif; ?>

I have tried to use CSS to float it into two columns, but I get the following outcome:

Page title A Page title B
Page title C Page title D
Page title E Page title F

So I’m hoping someone can help tweak the code so is display in two columns and with the follow order:

Page title A Page title D
Page title B Page title E
Page title C Page title F

Any help would be much appreciated!

[anakadote]

Count the total number of results, and then split it in two (if there are an odd number of results make the first column have the extra one). Then loop through the results until you get half way; end your first column, and start the second. Here is an example:

<?php
   $total_results = count($results);
   $col_1_total = ceil($total_results/2);
   $col_2_total = $total_results - $col_1_total;
?>
<ul id="col_1">
<?php
   $i=0;
   foreach($results as $result){

  // If the current number of iterated results is equal to the total number of results
  // for the first column, then end the first column and start the second.
  if($i == $col_1_total){ 
     echo '</ul><ul id="col_2">';
  }
?>
   <li><?php echo $result; ?></li>
<?php
      $i++;
   }
?>
</ul>

Note that if there is only one result then col_2 will be empty.

[nichart]

Hi Anakadote,

Thanks for your response – I really appreciate your help. I will try and figure out how to combine the code this weekend - as I’ve said I’m a complete PHP newbie. I’ll will post how I get on soon. 🙂

[nichart]

I've tryed to combine the codes but I get the following error "Invalid argument supplied for foreach()" What am I doing wrong? Please someone tell me howto combine these codes?

<?php
    global $wp_query;
    if( empty($wp_query->post->post_parent) )
      {
         $parent = $wp_query->post->ID;
      }
    else
     {
         $parent = $wp_query->post->post_parent;
     }
?>
<?php
   $total_results = count($results);
   $col_1_total = ceil($total_results/2);
   $col_2_total = $total_results - $col_1_total;
?>
<?php if(wp_list_pages("title_li=&child_of=$parent&echo=0" )): ?>
<ul id="col_1">
      <?php wp_list_pages("title_li=&child_of=$parent" ); ?>
<?php
   $i=0;
   foreach($results as $result){

  // If the current number of iterated results is equal to the total number of results
  // for the first column, then end the first column and start the second.
  if($i == $col_1_total){
     echo '</ul><ul id="col_2">';
  }
?>
   <li><?php echo $result; ?></li>
<?php
      $i++;
   }
?>
</ul>
<?php endif; ?>