11 個用于定制WordPress管理儀表盤的代碼片段
Remove items from your WordPress Dashboard’s Menu
// removing appearance, users and plugins options from menu Items in WordPress Dashboard
function wp_admin_dashboard_remove_menus() {
global $menu;
$restricted = array(__('Appearance'), __('Users'), __('Plugins'));
end ($menu);
while (prev($menu)){
$value = explode(' ',$menu[key($menu)][0]);
if(in_array($value[0] != NULL?$value[0]:"" , $restricted)){unset($menu[key($menu)]);}
}
}
add_action('admin_menu', 'wp_admin_dashboard_remove_menus');
List all Dashboard Widgets Within the Dashboard Itself
function list_active_dashboard_widgets() {
global $wp_meta_boxes;
foreach (array_keys($wp_meta_boxes['dashboard']['normal']['core']) as $name) {
echo '<div>' . $name . '</div>';
}
}
add_action('wp_dashboard_setup', 'list_active_dashboard_widgets');
Editing the Footer Text in your Dashboard
function remove_footer_admin () {
echo "Your own text";
}
add_filter('admin_footer_text', 'remove_footer_admin');
Changing the Colour of WordPress Dashboard’s Header
// Editing the WordPress Dashboard Header
function wp_admin_dashboard_header_colour() {
echo '<style type="text/css">#wphead{background:#000000;
background-image: -webkit-gradient(linear, 0% 100%, 0% 0%, from(#7684hg), to(#730fvk));
}
wphead h1#site-heading a{color: #ggg;}
wphead h1#site-heading a:hover{color: #fff;}
wphead #wphead-info #user_info{color: #ggg;}
wphead #wphead-info #user_info a{color: #ggg;}
wphead #wphead-info #user_info a:hover{color: #fff;}
</style>';
}
add_action('admin_head', 'wp_admin_dashboard_header_colour');</pre>
Adding a Custom Widget in Your WordPress Dashboard
add_action('wp_dashboard_setup', 'custom_dashboard_widgets');
function custom_dashboard_widgets() {
global $wp_meta_boxes;
wp_add_dashboard_widget('custom_ad_widget', 'MyAds', 'custom_dashboard_ad');
}
function custom_dashboard_ad() {
echo '<p> Here is my widget.</p><br /> And one more line';
}</pre>
Error Logging in WordPress Dashboard
function slt_PHPErrorsWidget() {
$logfile = '<root>/logs/php-errors.log'; // Enter the server path to your logs file here
$displayErrorsLimit = 100; // The maximum number of errors to display in the widget
$errorLengthLimit = 300; // The maximum number of characters to display for each error
$fileCleared = false;
$userCanClearLog = current_user_can( 'manage_options' );
// Clear file?
if ( $userCanClearLog && isset( $_GET["slt-php-errors"] ) && $_GET["slt-php-errors"]=="clear" ) {
$handle = fopen( $logfile, "w" );
fclose( $handle );
$fileCleared = true;
}
// Read file
if ( file_exists( $logfile ) ) {
$errors = file( $logfile );
$errors = array_reverse( $errors );
if ( $fileCleared ) echo '<p><em>File cleared.</em></p>';
if ( $errors ) {
echo '<p>'.count( $errors ).' error';
if ( $errors != 1 ) echo 's';
echo '.';
if ( $userCanClearLog ) echo ' [ <b><a href="'.get_bloginfo("url").'/wp-admin/?slt-php-errors=clear" onclick="return confirm(\'Are you sure?\');">CLEAR LOG FILE</a></b> ]';
echo '</p>';
echo '<div id="slt-php-errors" style="height:250px;overflow:scroll;padding:2px;background-color:#faf9f7;border:1px solid #ccc;">';
echo '<ol style="padding:0;margin:0;">';
$i = 0;
foreach ( $errors as $error ) {
echo '<li style="padding:2px 4px 6px;border-bottom:1px solid #ececec;">';
$errorOutput = preg_replace( '/[([^]]+)]/', '<b>[$1]</b>', $error, 1 );
if ( strlen( $errorOutput ) > $errorLengthLimit ) {
echo substr( $errorOutput, 0, $errorLengthLimit ).' [...]';
} else {
echo $errorOutput;
}
echo '</li>';
$i++;
if ( $i > $displayErrorsLimit ) {
echo '<li style="padding:2px;border-bottom:2px solid #ccc;"><em>More than '.$displayErrorsLimit.' errors in log...</em></li>';
break;
}
}
echo '</ol></div>';
} else {
echo '<p>No errors currently logged.</p>';
}
} else {
echo '<p><em>There was a problem reading the error log file.</em></p>';
}
}
// Add widgets
function slt_dashboardWidgets() {
wp_add_dashboard_widget( 'slt-php-errors', 'PHP errors', 'slt_PHPErrorsWidget' );
}
add_action( 'wp_dashboard_setup', 'slt_dashboardWidgets' );</pre>
Removing the Logo From the Dashboard
add_action('admin_head', 'my_custom_logo');
function my_custom_logo() {
echo '<style type="text/css">
#header-logo { background-image: url('.get_bloginfo('template_directory').'/images/logo.jpg) !important; }</style>';
}</pre>
Add a Custom News Feed to the WordPress Dashboard
// A news feed widget for your WordPress dashboard
function wp_admin_dashboard_add_news_feed_widget() {
global $wp_meta_boxes;
// The new widget
wp_add_dashboard_widget( 'dashboard_new_feed', 'News of Your Choice', 'dashboard_my_feed_output' );
}
add_action('wp_dashboard_setup', 'wp_admin_dashboard_add_news_feed_widget');
function dashboard_my_feed_output() {
echo '<div>';
wp_widget_rss_output(array(
'url' => 'http://www.mywebsite.com/feed/',
'title' => 'Latest news of my choice',
'items' => 2,
'show_summary' => 1,
'show_author' => 0,
'show_date' => 1
));
echo "</div>";
}
Removing the WordPress Logo from the Login Page
function my_custom_login_logo() {
echo '<style type="text/css">
h1 a { background-image:url('.get_bloginfo('template_directory').'/images/logo.jpg) !important; }
</style>';
}
add_action('login_head', 'my_custom_login_logo');
Disable Non-Default Dashboard Widgets
function disable_default_dashboard_widgets() {
remove_meta_box('widget-name', 'dashboard', 'normal');
}
add_action('admin_menu', 'disable_default_dashboard_widgets');
Remove the Upgrade WordPress Banner for Non-Admin Users
// Removing the "Please Update Now" notice for non-admin users
if ( !current_user_can( 'edit_users' ) ) {
add_action( 'init', create_function( '$a', "remove_action( 'init', 'wp_version_check' );" ), 2 );
add_filter( 'pre_option_update_core', create_function( '$a', "return null;" ) );
add_filter( 'pre_site_transient_update_core', create_function( '$a', "return null;" ) );
}
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