WordPress snippet #1

Add a Page in the dashboard Menu

function register_custom_dash_page() {
    add_menu_page('GJ Custom Page', 'Custom Page', 'manage_options', 'custompage', 'f_toprint_onpage', plugins_url( 'gj_artlogic_feed/images/ico_img.svg' ), 6); 
}
add_action('admin_menu', 'register_custom_dash_page');

function f_toprint_onpage(){
   echo "GJ Custom Page";  
}