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Having fun at Zao is one of our values. We’ve put limited animated flourishes throughout our site to communicate our love of levity. We also recognize that onscreen movement is not fun or possible for everyone. We've turned off all our animations for you per your browser's request to limit motion. That said, we don't want you to miss out on the party.

Here's a funny joke to enjoy!

What do you get when you cross a dyslexic, an insomniac, and an agnostic?

Someone who lays awake at night wondering if there is a dog.

Adding Settings to Network Settings for WordPress Multisite

I had a need on a recent project to add a few settings for multisite administrators.  Rather than running to Google or the Codex, I decided to just dig into core.  It actually took me less time than I thought it would and was surprisingly simple.   Here’s a basic example of how I added, sanitized and saved network-wide settings. There’s a lot of boilerplate, scroll down to Lines 41-96 for the important bits.

<?php 
class Plugin {
 
    private static $instance;
    /**
     * Get active object instance
     *
     * @since 1.0
     *
     * @access public
     * @static
     * @return object
     */
    public static function get_instance() {
 
        if ( ! self::$instance )
            self::$instance = new Plugin();
 
        return self::$instance;
    }
 
    /**
     * Class constructor.  Includes constants, includes and init method.
     *
     * @since 1.0
     *
     * @access public
     * @return void
     */
    public function __construct() {
        $this->init();
    }
 
    /**
     * Run action and filter hooks.
     *
     * @since 1.0
     *
     * @access private
     * @return void
     */
    private function init() {
 
        //Adds settings to Network Settings
        add_filter( 'wpmu_options'       , array( $this, 'show_network_settings' ) );
        add_action( 'update_wpmu_options', array( $this, 'save_network_settings' ) );
 
    }
 
    public static function save_network_settings() {
        $posted_settings  = array_map( 'sanitize_text_field', $_POST['plugin'] );
 
        foreach ( $posted_settings as $name => $value ) {
            update_site_option( $name, $value );
        }
    }
 
    public static function show_network_settings() {
        $settings = self::get_network_settings(); ?>
        <h3><?php _e( 'Plugin Settings' ); ?></h3>
        <table id="menu" class="form-table">
            <?php
                foreach ( $settings as $setting ) :
            ?>
 
            <tr valign="top">
                <th scope="row"><?php echo $setting['name']; ?></th>
                <td>
                    <input type="<?php echo $setting['type'];?>" name="plugin[<?php echo $setting['id']; ?>]" value="<?php echo esc_attr( get_site_option( $setting['id'] ) ); ?>" />
                    <br /><?php echo $setting['desc']; ?>
                </td>
            </tr>
            <?php
        endforeach;
        echo '</table>';
    }
 
    public static function get_network_settings() {
 
        $settings[] = array(
                    'id'   => 'data-one',
                    'name' => __( 'Data Name' ),
                    'desc' => __( 'Here is some description' ),
                    'type' => 'text',
                    'size' => 'regular'
        );
 
        $settings[] = array(
                    'id'   => 'data-two',
                    'name' => __( 'More Data' ),
                    'desc' => __( 'More description!' ),
                    'std'  => '5',
                    'type' => 'text'
        );
 
        return apply_filters( 'plugin_settings', $settings );
    }
}
 
Plugin::get_instance();

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