implementing plugins loaded action hook in wordpress

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My plugin code looks like below, 

if (!current_user_can('administrator')){
function hide_post_page_options() {
//global $post;
// Set the display css property to none for add category and add tag functions
$hide_post_options = "<style type="text/css"> .jaxtag { display: none; } #category-adder { display: none; } </style>";
print($hide_post_options);
}
add_action( 'admin_head', 'hide_post_page_options'  );
}

But when I activate I get an error

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Fatal error: Call to undefined function wp_get_current_user()

I could get around this by including the pluggable.php in capabilities.php. But I don’t think doing a change in those files is a better way. Because wp_get_current_user() is a pluggable function it is only available after the plugins are loaded. Is there a way to use this without making changed to core files?

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1 comment

  1. Instead of hiding it with CSS, I would suggest you to remove it from Menu if it’s not admin, that would be a WordPress approach

    add_action('admin_menu', 'dot1_remove_dahsboard_menu', 111);

function dot1_remove_dahsboard_menu(){
   global $submenu, $menu;

   //to check array key you want to unset in your case, print the array
   echo "<pre>";
   print_r($menu);
   echo "</pre>";

   echo "<pre>";
   print_r($submenu);
   echo "</pre>";
   /* Unset menu array */
   if(  !current_user_can('manage_options')  ){
        unset($menu['10']);
   }

   /* Unset submenu array */
  if(  !current_user_can('manage_options')  ){
        unset($submenu['edit.php']['10']);
  }
}