You don’t have to specify number of arguments, in which case it will default to one. Essentially this argument gives you control on how many arguments hook will pass to function, which matters in few too many situations to come up with generic explanation. In a nutshell if hook can pass N arguments, your options … Read more
If I understand you correctly you want to create a page for your plugin which mimics the look and feel of the WordPress Dashboard and it’s option pages? If so then you can use the CSS which is packed with WordPress. The CSS file is located at wp-admin/wp-admin.css If you open that file with your … Read more
You can use the following markup in a plugin description: a[href]Special Formatting for WordPress Plugin Description?, abbrSpecial Formatting for WordPress Plugin Description?, acronymSpecial Formatting for WordPress Plugin Description?, code, em, strong Anything else will be rendered as plain text (escaped).
This is a very basic nonce setup for a plugin: Create your nonce input in the form: wp_nonce_field( basename(__FILE__), $nonce_key ); Then check your nonce once submitted: if ( empty($_POST[$nonce_key]) || ! wp_verify_nonce( $_POST[$nonce_key], basename(__FILE__) ) ) return; basename(FILE) just uses the current filename (eg: plugin_options.php) to create the nonce string. You need to provide … Read more
There are a few pitfalls, mainly with wpautop being applied after the shortcode filter, and multiple do_shortcode calls because of plugins that already added this filter to widget_text. See the discussion in the following ticket: http://core.trac.wordpress.org/ticket/10457
The best thing you can do here is to call them with a $_GET parameter, and just register the first site to the menu. so for example, when you registered admin.php?page=my-plugin/admin/submenupage.php, you have the submenupage.php structured like this: if ( !isset( $_GET[‘section’] ) ) { include(‘mainpage.php’); } else if ($_GET[‘section’] == ‘hiddenpage1’ ){ include(‘mainpage.php’); } … Read more
The function update_option includes action hooks that you can use. Use update_option_{$option_key} as shown here: function my_func($option, $value) { //this is called only when that particular option is updated //$option has the option key & $value has the value array } add_action(‘update_option_testimonials_settings’, ‘my_func’, 10, 2);
There’s a lot of filter hooks available, and your question is rather board. However, generally WordPress-generated content is handled by three hooks: the_title: applied to the post title retrieved from the database, prior to printing on the screen (also used in some other operations, such as trackbacks). the_content : applied to the post content retrieved … Read more
Three simple steps to generate a Facebook Avatar: Create an extra field in your comment form for the user’s facebook profile (see e.g. WP Engineer for a code example and how to) If the user filled out this field, get the facebook avatar (see this question) Replace the WP avatar with your facebook avatar if … Read more
You don’t need to store anything, just check the current logged in user via user_can: global $current_user; get_currentuserinfo(); if ( user_can( $current_user, “role_apple” ) ){ // do something }