Events without plugin (wordpress)

Register and display events.

<?php
/**
* Register events post type.
*/
add_action('init', function() {
    $labels = array(
        'name' => _x('Events', 'post type general name'),
        'singular_name' => _x('Event', 'post type singular name'),
        'add_new' => _x('Add New', 'portfolio item'),
        'add_new_item' => __('Add New Event'),
        'edit_item' => __('Edit Event'),
        'new_item' => __('New Event'),
        'view_item' => __('View Event'),
        'search_items' => __('Search Events'),
        'not_found' => __('Nothing found'),
        'not_found_in_trash' => __('Nothing found in Trash'),
        'parent_item_colon' => '',
    );
    $args = array(
        'labels' => $labels,
        'public' => true,
        'publicly_queryable' => true,
        'show_ui' => true,
        'query_var' => true,
        'capability_type' => 'post',
        'hierarchical' => false,
        'menu_position' => null,
        'supports' => array('title', 'editor', 'thumbnail'),
        'rewrite' => true,
        'show_in_nav_menus' => true,
    );
    register_post_type('events', $args);
});
?>

functions.php

Event template.

<?php
    $event_date = get_post_meta(get_the_ID(), 'event_date', true);
    if ($event_date) {
        $event_date = date('M d, Y', strtotime($event_date));
        echo $event_date;
    }
?>

event.php

Events template.

<?php
    $future = date('Ymd', strtotime("+1 year"));
    $past = date('Ymd', strtotime("-1 year"));
    $present = date('Ymd', strtotime("now"));

    $args = array(
        'future' => array(
            'label' => 'Future Events',
            'query_args'=>array(
                'post_type' => 'events',
                'posts_per_page' => -1,
                'meta_query' => array(
                    array(
                        'key' => 'event_date',
                        'value' => array($present, $future),
                        'type' => 'numeric',
                        'compare' => 'BETWEEN',
                    )
                )
            )
        ),
        'past' => array(
            'label' => 'Past Events',
            'query_args' => array(
                'post_type' => 'events',
                'posts_per_page' => -1,
                'meta_query' => array(
                    array(
                        'key' => 'event_date',
                        'value' => array($past, $present),
                        'type' => 'numeric',
                        'compare' => 'BETWEEN',
                    )
                )
            )
        )
    );

    foreach($args as $arg){
        $q = new WP_Query($arg['query_args']);
        printf('<h2>%s</h2>', $arg['label']);
        if ($q->have_posts()) {
            echo '<ul>';
            while ($q->have_posts()) {
                $q->the_post();
                printf(
                    '<li><a href="%s">%s</a></li>',
                    esc_url(get_permalink()),
                    esc_html(get_the_title())
                );
            }
            echo '</ul>';
        } else {
            echo '<p>There are no events at the moment.</p>';
        }
    }
    wp_reset_postdata();
?>

events.php

< toolbox