Add Metabox To Any Post Type
So you want to up your game and add a little bit of complexity to your post or custom post type perhaps. Meta boxes might be one of the things that you are looking for.
Lets start by creating a hook to the add_meta_boxes action.
//add the action
add_action( 'add_meta_boxes', 'custom_meta_boxes', 10, 2 );
Then create the callback function of the action, this is where you can check the current post-type and decide what to do. The defaults are post and page.
function custom_meta_boxes($post_type, $post){
if($post_type == '{post-type}'){
//now we create the meta box and add a callback function to render
add_meta_box( 'my-meta-box',
'Meta Box Title',
'render_meta_box', //<-- callback function
'post-type',
'normal',
'default');
}
}
Lastly you need to render the content of the meta box
//this will be called to render the meta box
function render_meta_box($post){
//render the meta box here
}
