Well the second bit of code is technically the correct way to do it. However, at the end of the add_settings_field() you can pass arguments. Please view the WordPress Add_Settings_Field function reference. This will help you in getting the best understanding of how the add_settings_field() function really works. Now, with that said, you could use … Read more
You need to use the ‘show_user_profile’, ‘edit_user_profile’, ‘personal_options_update’ and ‘edit_user_profile_update’ hooks. Here’s some code to add a Phone number: add_action( ‘show_user_profile’, ‘yoursite_extra_user_profile_fields’ ); add_action( ‘edit_user_profile’, ‘yoursite_extra_user_profile_fields’ ); function yoursite_extra_user_profile_fields( $user ) { ?> <h3><?php _e(“Extra profile information”, “blank”); ?></h3> <table class=”form-table”> <tr> <th><label for=”phone”><?php _e(“Phone”); ?></label></th> <td> <input type=”text” name=”phone” id=”phone” class=”regular-text” value=”<?php echo esc_attr( … Read more
The question was for WordPress 3.0, but just in case someone has the same question for a more recent version, from WordPress Codex: “Starting with version 4.1, meta_query clauses can be nested in order to construct complex queries.” https://developer.wordpress.org/reference/classes/wp_query/#custom-field-post-meta-parameters So, that query should work on the current WordPress version.
Since WordPress 3.5 this option (XML-RPC) is enabled by default, and the ability to turn it off from WordPress dashboard is gone. Add this code snippet for use in functions.php: // Disable use XML-RPC add_filter( ‘xmlrpc_enabled’, ‘__return_false’ ); // Disable X-Pingback to header add_filter( ‘wp_headers’, ‘disable_x_pingback’ ); function disable_x_pingback( $headers ) { unset( $headers[‘X-Pingback’] ); … Read more
Store errors in your class or as a global, possibly in a transient or meta, and display them in admin notices on POST requests. WP does not feature any flash message handler.
When developing a plugin should the functions be grouped together into a Class to avoid namespace conflicts? Yes, but that’s only one of the minor arguments. In-fact that’s not the “true” nature of a class in OOAD. Does using classes create performance overheads for PHP? No, not notably. Bad design and/or bad written code or … Read more
The OpenID plugin you linked is the best one, but it has a minor bug preventing it from working with WordPress 3.0, at least when combined with PHP 5.3. The fix can be found here: http://code.google.com/p/diso/issues/detail?id=161
Object cache everywhere WordPress tries to reduce the number of database queries as much as possible. For example, anytime you get a meta field or a taxonomy field, before querying the database, WordPress looks if that that was already queried and stored in cache, and returns it from there instead of querying the database. The … Read more
I wound up working on the exact same thing and this post was very helpful. I used Custom Fields and here is the code that I used to create a list of all events greater than the current date. Note the extra taxonomy based filters. <?php // Let’s get the data we need to loop … Read more
There may be a better way that I am missing but I am going to give you 2 options: 1.Use XML Export to export your new posts and comments. Then use the WordPress Importer to import the new posts and comments back into the dev database It’s best to import into dev then move the … Read more