Timeline for update_post_meta() updating nested array in Multidimensional array with empty sub-array
Current License: CC BY-SA 4.0
11 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Mar 8, 2022 at 15:03 | comment | added | Gildas.Tambo | Let us continue this discussion in chat. | |
| Mar 8, 2022 at 15:03 | comment | added | Tom J Nowell♦ | you mean you can remove items from the meta, but you cannot empty the entire thing? That was not obvious from your question ( I'm still not sure I have the right understanding). This isn't very clear | |
| Mar 8, 2022 at 15:00 | comment | added | Gildas.Tambo | yes it is correct since i can update it delete it but not empty it meaning when i have 4items in it and just delete 3 it works fine but not if i delete all 4items. And that is where i am currently stuck | |
| Mar 8, 2022 at 14:57 | comment | added | Tom J Nowell♦ |
Also $_POST['meta']['ds_product_gallery'] is a weird thing to see, are you absolutely sure that is correct? And have you verified that the update meta call is actually happening? Not a "it should be" but an "I saw output that can only happen inside that else statement" or a pause on a debugger?
|
|
| Mar 8, 2022 at 14:54 | comment | added | Tom J Nowell♦ | Here's the relevant doc: php.net/manual/en/function.unset.php, as I said, this isn't a WordPress problem, it's a generic PHP problem. If your meta still has the values you tried to remove, it's because you did not remove them successfully. Either that or the code you're trying to debug is never run to begin with | |
| Mar 8, 2022 at 14:54 | comment | added | Tom J Nowell♦ | you update the meta by grabbing its value, changing that value, then updating it, you've already figured out that part | |
| Mar 8, 2022 at 14:53 | comment | added | Gildas.Tambo |
ok mate, but how do you update the meta then? i tried $data = get_post_meta( $post->ID, 'meta', true ); unset($data['ds_product_gallery']); update_post_meta( $post_ID, 'meta', $data ); but nothing
|
|
| Mar 8, 2022 at 14:53 | history | edited | Tom J Nowell♦ | CC BY-SA 4.0 |
deleted 99 characters in body
|
| Mar 8, 2022 at 14:51 | comment | added | Tom J Nowell♦ |
$data['ds_product_gallery'][0][0] = []; sets it to an empty array, if you want to remove the item from the array though then that's a general PHP problem not a WordPress problem, you can rephrase this question as "How do I remove an item from an array", use unset().
|
|
| Mar 8, 2022 at 14:48 | comment | added | Gildas.Tambo |
have a look at the else section that is exactly what i am doing but it doesn't work i even tried $data = get_post_meta( $post->ID, 'meta', true ); $data['ds_product_gallery'] = []; update_post_meta( $post_ID, 'meta', $data ); without success
|
|
| Mar 8, 2022 at 14:43 | history | answered | Tom J Nowell♦ | CC BY-SA 4.0 |