Save plugin options multisite 3.1

//Snippet1 - New action for creating your buddypress submenu pages - replace 'create_my_submenu_page' with the name of your function

add_action(is_multisite() ? 'network_admin_menu' : 'admin_menu','create_my_submenu_page');

//Snippet2 - This is the form for submitting your plugin options. This works for plugins that only function on the main site, to account for plugins that are used on the network you may want to replace the update_options() with update_site_options() and check ahead of time to decide which to use.


function my_plugin_admin_form(){
if(!isset($_POST['my_option']['my_display_tool'])) $_POST['my_option']['my_display_tool'] = 'false';//If no checked box in post set value to false

foreach((array)$_POST['my_option'] as $key => $value){//Add more my_option[FIELDNAME] to form for more fields
$my_display_tool = get_option('my_display_tool');

<div class="wrap">
<h2>My Settings</h2>
<?php if(isset($_POST['my_submit'])) : ?>
<div id="message" class="updated fade">
<?php _e( 'Settings Saved', 'my' ) ?>
<?php endif; ?>
<form method="post" action="">
<?php settings_fields('my_settings'); ?>
<p style="margin-bottom:30px;">
<label style="display:block;" class="input_label">ON/OFF Switch:</label>
<br />
<input name="my_option[my_display_tool]" type="checkbox" <?php if($my_display_tool == 'true') echo 'checked'; ?> value="true" />
<!-- Add more my_option[FIELDNAME] to form for more fields -->
<span class="checkbox_text">Turn This On</span><br />
<input name="my_submit" type="submit" class="button-primary" value="<?php _e('Save Changes') ?>" />
</div><!-- /.wrap -->