Anything Access

The addition of a lottery Application to our local club and the restrictions working with lotto providers got me thinking. How can I generate lotto numbers and more importantly make a plugin to allow members to play it online while removing the 6% to 10% the provider charges for the service.

I went to ChatGPT and asked how to generate lotto number as a quick pick but also as a user input.

This is a work in progress and I will revisit this later in the year, but I think it may have some legs. I need to clean the code up add a user form and a payment processing.

Of course there are many paid plugins which already offer a solution , once I have reviewed this further we may revisit this…

Lottery Application PHP Plugin Code

<?php
/**
  Plugin Name: Lotto Number Generator
  Description: Generates and stores lotto numbers.
  Version: 1.0
  Author: Anything access
  Author URI: https://AnythingAccess.com
 */

// Prevent direct access.
if (!defined('ABSPATH')) {
    exit;
}

// Create database table on activation.
function lotto_plugin_activate() {
    global $wpdb;
    $table_name = $wpdb->prefix . 'lotto_numbers';
    $charset_collate = $wpdb->get_charset_collate();

    $sql = "CREATE TABLE $table_name (
        id BIGINT(20) UNSIGNED AUTO_INCREMENT PRIMARY KEY,
        numbers VARCHAR(255) NOT NULL,
        created_at DATETIME DEFAULT CURRENT_TIMESTAMP
    ) $charset_collate;";

    require_once(ABSPATH . 'wp-admin/includes/upgrade.php');
    dbDelta($sql);
}
register_activation_hook(__FILE__, 'lotto_plugin_activate');

// Shortcode to generate lotto numbers.
function generate_lotto_shortcode($atts) {
    global $wpdb;

    // Default attributes.
    $atts = shortcode_atts(
        ['count' => 6, 'max' => 49],
        $atts,
        'generate_lotto'
    );

    $count = intval($atts['count']);
    $max = intval($atts['max']);

    // Generate random numbers.
    $numbers = [];
    while (count($numbers) < $count) {
        $num = rand(1, $max);
        if (!in_array($num, $numbers)) {
            $numbers[] = $num;
        }
    }

    sort($numbers);
    $numbers_str = implode(', ', $numbers);

    // Store in database.
    $table_name = $wpdb->prefix . 'lotto_numbers';
    $wpdb->insert($table_name, ['numbers' => $numbers_str]);

    return "<p>Lotto Numbers: $numbers_str</p>";
}
add_shortcode('generate_lotto', 'generate_lotto_shortcode');

// Admin menu for viewing results.
function lotto_admin_menu() {
    add_menu_page(
        'Lotto Results',
        'Lotto Results',
        'manage_options',
        'lotto-results',
        'lotto_admin_page',
        'dashicons-tickets-alt',
        20
    );
}
add_action('admin_menu', 'lotto_admin_menu');

// Admin page content.
function lotto_admin_page() {
    global $wpdb;
    $table_name = $wpdb->prefix . 'lotto_numbers';

    $results = $wpdb->get_results("SELECT * FROM $table_name ORDER BY created_at DESC");

    echo '<div class="wrap">';
    echo '<h1>Lotto Results</h1>';
    echo '<table class="widefat fixed" cellspacing="0">';
    echo '<thead><tr><th>ID</th><th>Numbers</th><th>Date</th></tr></thead>';
    echo '<tbody>';
    foreach ($results as $result) {
        echo '<tr>';
        echo '<td>' . $result->id . '</td>';
        echo '<td>' . $result->numbers . '</td>';
        echo '<td>' . $result->created_at . '</td>';
        echo '</tr>';
    }
    echo '</tbody>';
    echo '</table>';
    echo '</div>';
}

If you already have an online lottery application , you might be interested in our free offline lottery application