The problem was in my way of including some classes with the spl_autoload_register() function. This leaded into some problems inside the WordPress core. Excuse me for not testing this before.
Related Posts:
- How do I pass an array as an argument to a WP-CLI command?
- update_post_meta from data in multidimensional array created from a form
- update_post_meta() with a modified array?
- How to get update_post_meta output to include string length
- Retrieving multiple values to the Post Meta (using an array)
- How to use json_decode a post_meta value? [duplicate]
- Print specific values stored in a post meta array
- Random element in get_post_meta array
- wp_insert_post($post), add an array of values with update_post_meta
- update_post_meta adding to array instead of replacing value
- Add Array record to Meta Post
- How i can extract data
- update_post_meta array issues
- Update Post Meta for Arrays — Remove/Replace Single Value from Multi Dimensional Array
- How do I retrieve a value from a multi – dimensional array using get_post_meta? [duplicate]
- How to match data in multidimensional array of post_meta_data?
- Multipe array in meta_input
- How to extract data from a post meta serialized array?
- Why does get_users suddenly return duplicates?
- advanced custom fields update_field for field type: Taxonomy
- How can merge two arrays values in one array and save in database
- wp_insert_post() getting slower the more posts
- Updating wp_options with an array on save_post results in duplicated entries
- Passing a variable into Contact Form 7 [closed]
- Make Selected Mutiselect Items “selected”
- Compare two meta key values against each other inside the get_posts array?
- settings api store multiple array
- Get posts id in array by meta value and key
- Inserting Hundreds of Thousands of Posts at Once
- How to check an array of $curauth fields?
- Efficient way to save a lot of meta data
- Problem with wp_update_post
- Replace text inside a huge multidimensional array
- How to use wp_insert_post to update meta box?
- wp_insert_post bulk import 500 server error
- Adding custom fields (post meta) before/during wp_insert_post()
- Return array keys and values
- How pass a 0 in $atts?
- get_*_meta doesn’t always return an array
- Echoing a variable inside a function
- update_post_meta, xml parser
- Unset field from an array not working as expected
- How to upload multiple image using wp_insert_post
- Combine get_page_by_title to exclude pages from wp_list_pages
- Plugin settings page checkbox not saving – one options array with sub array
- Storing a many to many post type relationship in post meta and keeping SQL ability for Joins
- Customizer Settings in Arrays
- WordPress i18n in Array throws Error
- Save meta box values as an array to wp_postmeta
- Output meta into arrays
- Get array of metakey in all posts
- Array in meta key?
- Saving array keep adding length of array
- How to get a page array and category array going at the same time?
- get_the_terms, whether I should use string or array as the second parameter?
- How to use two meta_compare in an array?
- Obtaining array item from WordPress revisions output
- How to handle this specific case of custom post type?
- Do not replicate items if they exists in a foreach loop
- Order a WP_Query by meta value where the value is an array
- How to put an array in wp user query
- Insert data from custom created PHP page into wp_postmeta table
- Get the values from an array string to work with post__in
- Get array value
- Array of user ids to list of user names
- update_user_meta duplicates entry
- Ways of dealing with nested arrays within option
- Add formatting to Array
- How to randomise my menu items?
- Insert Custom Field Value
- How to get the `comment_post_ID`?
- Taxonomy terms not properly displaying as array
- Trouble with serialized metadata
- How to get posts by meta value as multi-dimensional array?
- WP post meta – for loop inside for loop
- How to avoid duplicate users when I am using get_users?
- Multiple meta key and value search in the query
- Meta keys won’t add using wp_insert_post
- wp_update_post to set post IDs to drafts not working
- “Undefined variable: array” Error In Displaying Post Tag
- WPML admin texts with serialized objects
- Get original post ID after wp_insert_post
- Merge arrays and order set and subset as one
- Get the correct meta_value with get_post_meta
- Plugin Shortcode value in post
- Update post_meta post_name with the post ID from wp_insert_post after user register
- Create dropdown menu of all tags used in category
- How to get several fields from wp_query?
- How can I get a list of custom post IDs into a variable I can use for another function?
- add_post_meta displays in admin edit area
- WooCommerce wp_insert_post action firing on every save
- Update fields with post object and custom tax with wp_insert_post
- Get custom_user meta value and add entry
- How do I retrieve an array from wp_postmeta with get_post_meta?
- post custom values
- How to check if the postID is in an array? [closed]
- Build Array from Input Fields question
- Marketpress php warning on server, no problem on localhost [closed]
- Insert data into custom table from fetching $_POST values
- JSON webhook WP Automator – Help with Syntax [closed]