How to a Add Custom Meta Box for Multiple Post Type

[php] add_action( ‘add_meta_boxes’, ‘myplugin_add_custom_box’ ); function myplugin_add_custom_box() { add_meta_box( ‘myplugin_sectionid’, __( ‘My Post Section Title’, ‘myplugin_textdomain’ ), ‘myplugin_inner_custom_box’, ‘post’ ); add_meta_box( ‘myplugin_sectionid’, __( ‘My Post Section Title’, ‘myplugin_textdomain’ ), ‘myplugin_inner_custom_box’, ‘page’ ); } [/php] See: Stackexchange┬á, Codex