Method to retrieve category names and IDs only as an array?
Can’t you use wp_dropdown_categories? wp_dropdown_categories(‘show_option_none=Select category&exclude=1,2,3&selected=6’);
plugin-development
How can I make my website with wordpress having on-spot editing feature as compared to concrete5 CMS?
This is typically called edit in place. Try the Front End Editor plugin.
I want to encrypt my WordPress plugin
Can you encrypt your plugin files? Yes, (“yes” meaning that it is “possible” – not “permissible”) Should you? No. Let’s start with the obvious. WordPress is licensed under GPL – GNU General Public License. What does that mean? It means that WordPress and any derivative work needs to be “open source.” In other words, the … Read more
Conditional query tags do not work before the query is run. Before then, they always return false
Where can I find the WP initializing process documentation? This should help: So, here are the steps WordPress uses to decide what posts or pages to display on a page, and display them: When a visitor first clicks on or types a URL for a page that is part of your blog, WordPress starts by … Read more
What does $_REQUEST[‘redirect_to’] do?
Here, $_REQUEST[‘redirect_to’] is default parameter available in WordPress to redirect once you login correctly while sign in or sign up. e.g. User Dashboard. Ref : https://codex.wordpress.org/Plugin_API/Filter_Reference/login_redirect In General redirect_to will redirect user to user dashboard or same page if any credential or details false.
Serialized Data
your meta value is getting serialized twice, you should pass update_user_meta an array, not a serialized string. and while you’re at it, get the user meta via get_user_meta and you won’t have to think about serialization at all, WordPress handles all that behind the scenes if you stick to the API.
add_filter adds output in the head
Filters should return their content, and not echo it. That is why you see the output in your head as well EDIT I really have no idea why you would want to use require or include in your filter. Here is an example of your filter should be coded add_filter( ‘the_content’, myFunction ); function myFunction( … Read more
append code after the_content not working
previous_post_link and next_post_link both output the link directly, which won’t work in your case because you’re trying to assign the result to a variable. Use get_previous_post_link() and get_next_post_link() instead- function add_pagin( $content ) { if ( is_singular(‘post’) ) { $content .= get_previous_post_link() . get_next_post_link(); } return $content; } add_filter( ‘the_content’, ‘add_pagin’ );
wordpress plugins with add-ons
You could implement filters and actions in your core plugin’s code, at the appropriate places where you want your addons to interact, by using: do_action( ‘my_action’); apply_filters(‘my_filter’, $value, $variable_to_pass, $another_variable_to_pass); Then you can have addons as separate plugins and have them interact with the core via these hooks by calling: add_action(‘my_action’, ‘action_handle_function’); add_filter(‘my_filter’, ‘filter_handle_function’); this … Read more
Correct usage of scripts with shortcodes
Scripts which are very specific to shortcodes can be loaded directly inside the shortcode and do not have to be registered through the wp_enqueue_scripts hook. This has the advantage of you do not need to run extra code and checks to load the script conditionally, so the has_shortcode() check can be dropped. There is also … Read more