[wp-trac] [WordPress Trac] #11579: WordPress does not serialize properly multidimensional arrays in postmeta

[WordPress Trac]

#11579: WordPress does not serialize properly multidimensional arrays in postmeta
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 Reporter:  ickatanet                                                                  |        Owner:  westi     
     Type:  defect (bug)                                                               |       Status:  closed    
 Priority:  normal                                                                     |    Milestone:            
Component:  Plugins                                                                    |      Version:  2.9       
 Severity:  normal                                                                     |   Resolution:  worksforme
 Keywords:  serialize, postmeta, array, multidimensional, save_post, update_post_meta  |  
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Changes (by westi):

  * status:  new => closed
  * resolution:  => worksforme
  * milestone:  Unassigned =>


Comment:

 I've taken your code and tidied it up a bit so it doesn't cause php
 warnings/notices when WP_DEBUG is enabled.

 The following works fine for me:
 {{{
 /********************************************************************
 ADD/EDIT POST VIEW */
 add_action('admin_menu', 'o_add_custom_fields');
 function o_add_custom_fields(){
         add_meta_box( 'myplugin_sectionid', 'Additional Info',
 'o_add_post_fields', 'post', 'advanced' );
 }

 function o_add_post_fields() {
         global $post;
         $data = get_post_meta($post->ID,'_post_data',true);
         if ($data) {
                 $numbers = implode(',',$data['numbers']);
         }
 ?>
 <p>
         <label for="numbers">Numbers <small>comma-
 separated</small></label><br />
         <textarea rows="4" cols="25" name="numbers" id="numbers"><?php
 echo $numbers;?></textarea>
 </p>
 <?php

 }

 /********************************************************************
 HANDLE POST REQUEST */
 add_action('save_post', 'o_save_post');
 function o_save_post($post_id) {

         // update meta
         if (isset($_POST['numbers'])) {
                 $explode = explode(',',$_POST['numbers']);
                 $map = array_map('trim',$explode); // prepare
                 $_post_data = array(
                         'numbers' => $map
                 );

                 update_post_meta($post_id, '_post_data', $_post_data);
         }
 }
 }}}

 Closing as Works for Me.

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Ticket URL: <http://core.trac.wordpress.org/ticket/11579#comment:1>
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