Notice: Undefined index: id WordPress
- SOLVED
I have a plugin I'm working on and I'm getting this error in debug mode:
Here's the code leading up to the error line:
function mytheme_show_box( $post, $mb_id) {
global $meta_boxes, $post, $post_id;
// Use nonce for verification
echo '<input type="hidden" name="mytheme_meta_box_nonce" value="', wp_create_nonce(basename(__FILE__)), '" />' . "\n";
echo '<div class="optinpage">' . "\n";
foreach ($meta_boxes as $meta_box) {
if ($meta_box['id'] == $mb_id['id']) :
foreach ($meta_box['fields'] as $field) {
// get current post meta data
$meta = get_post_meta($post->ID, $field['id'], true);
This is the line which is kicking out the error:
$meta = get_post_meta($post->ID, $field['id'], true);
Please help!
Answers (6)
Utkarsh Kukreti answers:
One of your meta box fields doesn't have an id defined. Could you post the part where you're declaring the meta boxes?
Armand Morin comments:
That was it. I'm didn't have an 'id' listed for a certain array. Thanks.
Christianto answers:
Hi,
do you pass an array for $meta_boxes
global $meta_boxes
Check to see if 'id' exist in the array..
<em>edit: wrong variable :D</em>
Nilesh shiragave answers:
Instead if id use name
$meta = get_post_meta($post->ID, $field['name'], true);
Luis Cordova answers:
oh no this is just a warning
you have many of those from plugins because they forgot to initialize some variable
bud DO NOT WORRY TOO MUCH
they are not harmful, they are NOT ERRORS!
Notice: Undefined index: id
feel free to move forward
Julio Potier answers:
Hello !
First try this :
$meta = get_post_meta($post->ID, $field['ID'], true);
Then if does not work try this :
function mytheme_show_box( $post, $mb_id) {
global $meta_boxes, $post, $post_id;
<em><strong> wp_die( var_dump( $meta_boxes ) );</strong></em>
// Use nonce for verification
...
And paste us the result.
See you soon !
Just Me answers:
it seems $meta_boxes is passed the right way otherwise you wouldn't end up in the if-loop.
Can you share the structure of your $meta_boxes array?
Did you try to echo/print_r() the variables you are using, to check if they are available?