Control When To Display WordPress Admin Bar

On day 10 of our Advent Calendar we show a little code snippet for the WordPress Admin Bar. At first the easiest way to remove the Admin Bar with new function __return_false; include since WordPress 3.0.

add_filter( 'show_admin_bar', '__return_false' );

Small Note: It give similar functions for return true __return_true, return zero __return_zero and return empty array __return_empty_array.

If you like to deactivate the Admin Bar completely, you can use the following syntax and if you want adjust or extend. This example just lets user use the Admin Bar, who have the rights manage_options, in default only the administrator hast the rights.

function fb_show_admin_bar() {
	
	if ( current_user_can( 'manage_options' ) )
		return TRUE;
	else
		return FALSE;
}
add_filter( 'show_admin_bar', 'fb_show_admin_bar' );