Adds plugin status page to network admin for WPMS

plugin-status.php

<?php
/**
 * Plugin Name: Plugin Versions
 * Description: Adds a Plugin Versions menu in WordPress Network Admin under Plugins.
 * Author: Terrance Orletsky - Earthman Media
 * Author URI: https://earthmanmedia.com
 * Version: 1.0
 */


// Hook to add submenu under Network Admin > Plugins
add_action( 'network_admin_menu', 'add_plugin_versions_menu' );

// Function to add submenu
function add_plugin_versions_menu() {
    add_submenu_page(
        'plugins.php',
        'Plugin Versions',
        'Plugin Versions',
        'manage_network_options',
        'plugin-versions',
        'display_plugin_versions'
    );
}

// Function to display plugin versions
function display_plugin_versions() {
    // Fetch all installed plugins
    $all_plugins = get_plugins();

    // Trigger update check for plugins
    do_action( 'wp_update_plugins' );

    // Fetch transient data for plugin updates
    $plugin_updates = get_site_transient( 'update_plugins' );

    // Counter to keep track of plugins needing updates
    $update_count = 0;
	$counter      = 0;
	$row_output   = '';

    // Loop through each plugin and output versions
    foreach ( $all_plugins as $plugin_path => $plugin_data ) {
		$counter++;
        $current_version   = $plugin_data['Version'];
        $plugin_name       = $plugin_data['Name'];
        $plugin_url        = ! empty( $plugin_data['PluginURI'] ) ? $plugin_data['PluginURI'] : $plugin_data['AuthorURI'];
        $available_version = '-';
        $row_style         = 'margin: 0; padding: 0; border: 0; font-size: 100%; font: inherit; vertical-align: baseline;';
        $td_style          = 'border-top-color:rgb(221, 221, 221);border-top-style:solid;border-top-width:0.555556px;';

        // Check for updates
        if ( isset( $plugin_updates->response[ $plugin_path ] ) ) {
            $update_data       = $plugin_updates->response[ $plugin_path ];
            $available_version = $update_data->new_version;
            $update_count++;
            $td_style .= ' background-color: #faefb3;';
        }

        // Output each plugin row
        $row_output .= "<tr style='{$row_style}'>";
        $row_output .= "<td style='{$td_style}'><a href='{$plugin_url}' target='_blank' style='text-decoration: none; color: #000;'>{$plugin_name}</a></td>";
        $row_output .= "<td style='{$td_style}'>{$current_version}</td>";
        $row_output .= "<td style='{$td_style}'>{$available_version}</td>";
        $row_output .= '</tr>';
    }

	// table output
    echo '<hr><h4>Plugins Update Status: <small> ' . $update_count . ' plugins to be updated.</small></h4><table style="margin: 0; padding: 0; border: 0; font-size: 100%; font: inherit; vertical-align: baseline;"><thead style="margin: 0; padding: 0; border: 0; font-size: 100%; font: inherit; vertical-align: baseline;"><tr style="margin: 0; padding: 0; border: 0; font-size: 100%; font: inherit; vertical-align: baseline;"><th style="margin: 0; padding: 0; border: 0; font-size: 100%; font: inherit; vertical-align: baseline;text-align:left;font-weight: bold;">Plugin Name / Link</th><th style="margin: 0; padding: 0; border: 0; font-size: 100%; font: inherit; vertical-align: baseline;text-align:left;font-weight: bold;">Current Version</th><th style="margin: 0; padding: 0; border: 0; font-size: 100%; font: inherit; vertical-align: baseline;text-align:left;font-weight: bold;">Update Available</th></tr></thead><tbody style="margin: 0; padding: 0; border: 0; font-size: 100%; font: inherit; vertical-align: baseline;">' . $row_output . '</tbody></table><br><br><hr>';
}