apply_filters( ‘show_admin_bar’, bool $show_admin_bar )

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   Steven Lin 4 years ago

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   Examples migrated from Codex.

   Note: The examples below should be called immediately upon plugin load or placed in theme’s functions.php file.

   This code would turn the display status of the Toolbar to off.

   add_filter( 'show_admin_bar', '__return_false' );

   Alternatively, you could write it into a full fledged function.

   add_filter( 'show_admin_bar' , 'my_function_admin_bar');
   function my_function_admin_bar() {
   	return false;
   }

   This would hide the Toolbar for all users except Administrators.

   add_filter( 'show_admin_bar' , 'my_function_admin_bar');
   function my_function_admin_bar($show_admin_bar) {
   	return ( current_user_can( 'administrator' ) ) ? $show_admin_bar : false;
   }