Wordpress Plugin - php

Question

I'm trying to use a widget within a plugin in wordpress and I'm seeing this error within the widget box:
Warning: extract() [function.extract]: First argument should be an array in /nfs/c03/h04/mnt/57957/domains/rab.qbessi.com/html/wp-content/plugins/register-plus/dash_widget.php on line 24
This is the code from Line 24:
// Output the widget contents
function widget( $args ) {
extract( $args, EXTR_SKIP );
Here's the dash_widget.php code
<?php
if( !class_exists('RegisterPlusWidget') ){
class RegisterPlusWidget{
function RegisterPlusWidget() { //contructor
// Add the widget to the dashboard
add_action( 'wp_dashboard_setup', array($this, 'register_widget') );
add_filter( 'wp_dashboard_widgets', array($this, 'add_widget') );
}
function register_widget() {
wp_register_sidebar_widget( 'regplus_invite_tracking', __( 'Invitation Code Tracking', 'regplus' ), array($this, 'widget'), array( 'settings' => 'options-general.php?page=register-plus' ) );
}
// Modifies the array of dashboard widgets and adds this plugin's
function add_widget( $widgets ) {
global $wp_registered_widgets;
if ( !isset($wp_registered_widgets['regplus_invite_tracking']) ) return $widgets;
array_splice( $widgets, 2, 0, 'regplus_invite_tracking' );
return $widgets;
}
// Output the widget contents
function widget( $args ) {
extract( $args, EXTR_SKIP );
echo $before_widget;
echo $before_title;
echo $widget_name;
echo $after_title;
global $wpdb;
$regplus = get_option( 'register_plus' );
$codes = $regplus['codepass'];
$usercodes = array();
foreach($codes as $code){
$users = $wpdb->get_results( "SELECT user_id FROM $wpdb->usermeta WHERE meta_key='invite_code' AND meta_value='$code'" );
echo '<h3>' . $code . ': <small style="font-weight:normal">' . count($users) . ' Users Registered.</small></h3>';
}
echo $after_widget;
}
}
} # End Class RegisterPlusWidget
// Start this plugin once all other plugins are fully loaded
add_action( 'plugins_loaded', create_function( '', 'global $regplus_widget; $regplus_widget = new RegisterPlusWidget();' ) );
?>

Answer 1

The widget() function is being called with no parameters. Why, is hard to tell without digging deeply into the plugin. You should ask the plugin's author.
You can try adding
// Output the widget contents
function widget( $args ) {
if (is_array($args)) // Add this
extract( $args, EXTR_SKIP );
and see whether the output still makes sense then. That effectively just suppresses the action that causes the warning. If it's a badly programmed plugin that was developed with warnings turned off, that already may do the trick.

Answer 2

google launched new plugin called site kit, it will make analyzing work much more easier.
https://wordifact.com/google-site-kit/