erikccoder

// Use your own external URL logo link.
function wpc_url_login(){
    return "http://erikyang.info/"; // your URL here
}
add_filter('login_headerurl','wpc_url_login');

erikccoder

function update_admin_footer (){
    echo '©2013 erik';
}
add_filter('admin_footer_text','update_admin_footer');

erikccoder

// remove admin bar at front end
add_filter('show_admin_bar', '__return_false');

erikccoder

// remove admin bar at backend
//plugin: http://wordpress.org/extend/plugins/wp-admin-bar-removal/
add_action( 'admin_bar_menu', 'wpse_76491_admin_bar_menu', 200 );

function wpse_76491_admin_bar_menu()
{
    global $wp_admin_bar;
    if ( !is_object( $wp_admin_bar ) )
        return;

erikccoder

// Add a widget in WordPress Dashboard
function wpc_dashboard_widget_function(){
    // Entering the text between the quotes
    echo "<ul>
			<li>Release Date: March 2012</li>
			<li>Author: Aurelien Denis.</li>
			<li>Hosting provider: my own server</li>
		</ul>";
}

erikccoder

//HIDING UNWANTED WORDPRESS DASHBOARD WIDGETS
add_action('wp_dashboard_setup', 'wpc_dashboard_widgets');

function wpc_dashboard_widgets() {

    global $wp_meta_boxes;
    // Today widget
    unset($wp_meta_boxes['dashboard']['normal']['core']['dashboard_right_now']);
    // Last comments
    unset($wp_meta_boxes['dashboard']['normal']['core']['dashboard_recent_comments']);

erikccoder

// add custom role & capability
add_action('admin_init', 'add_custom_role');
function add_custom_role()
{

    $marketing = add_role('marketing',
                           'Marketing',
                           array(
                               'read' => true,
                               'manage_links',

erikccoder

/*
	add custom admin setting tag & content;
	http://codex.wordpress.org/Administration_Menus
*/
/** Step 2 (from text above). */
add_action( 'admin_menu', 'my_plugin_menu' );

/** Step 1. */
function my_plugin_menu() {
	add_options_page( 'My Plugin Options', 'My Plugin', 'manage_options', 'my-unique-identifier', 'my_plugin_options' );

erikccoder

/*
	add custom admin page;
	http://codex.wordpress.org/Function_Reference/add_menu_page
*/
add_action( 'admin_menu', 'register_my_custom_menu_page' );

function register_my_custom_menu_page(){
	/*
		args: 
			$page_title, 

erikccoder

/**
	add custome meta box.
 * Calls the class on the post edit screen
 */
function call_someClass() 
{
    return new someClass();
}
if ( is_admin() )
    add_action( 'load-post.php', 'call_someClass' );