Function to add multiple wordpress custom post types

custom-post-types.php

<?php
//https://codex.wordpress.org/Function_Reference/register_post_type
//https://developer.wordpress.org/resource/dashicons/

$postTypes = [
    'Post Name' => [
        'menu_icon' => 'dashicons-businessman',
        'menu_position' => 26,
        'public' => true,
        'rewrite' => ['slug' => 'name'],
        'supports' => ['title', 'excerpt', 'editor', 'thumbnail'],
        'show_in_rest' => true,
    ],
];

function register_post_type($title, $args = [])
{
    if ($args['plural-ies']) {
        $plual = 'ies';
    } else {
        $plual = 's';
    }
    $ucFirstTitle = ucfirst($title);
    $lowercaseTitle = strtolower($title);
    $sanitizedTitle = sanitize_title($title);
    $defaults = [
        'labels' => [
            'add_new_item' => __('Add New ' . $ucFirstTitle, 'text-domain'),
            'add_new' => _x('Add New', $lowercaseTitle, 'text-domain'),
            'all_items' => __('All ' . ($args['plural-ies']
                    ? substr($ucFirstTitle, 0, -1) : $ucFirstTitle)
                . $plual,
                'text-domain'),
            'edit_item' => __('Edit ' . $ucFirstTitle, 'text-domain'),
            'menu_name' => _x(($args['plural-ies']
                    ? substr($ucFirstTitle,
                        0, -1) : $ucFirstTitle) . $plual, 'admin menu',
                'text-domain'),
            'name_admin_bar' => _x($ucFirstTitle, 'add new on admin bar',
                'text-domain'),
            'name' => _x(($args['plural-ies']
                    ? substr($ucFirstTitle,
                        0, -1) : $ucFirstTitle) . $plual,
                'post type general name', 'text-domain'),
            'new_item' => __('New ' . $ucFirstTitle, 'text-domain'),
            'not_found_in_trash' => __('No ' . ($args['plural-ies']
                    ? substr($ucFirstTitle, 0, -1) : $ucFirstTitle)
                . $plual . ' found in Trash.', 'text-domain'),
            'not_found' => __('No ' . ($args['plural-ies']
                    ? substr($ucFirstTitle, 0, -1) : $ucFirstTitle) . $plual
                . ' found.',
                'text-domain'),
            'parent_item_colon' => __('Parent ' . ($args['plural-ies']
                    ? substr($ucFirstTitle, 0, -1) : $ucFirstTitle) . $plual
                . ':',
                'text-domain'),
            'search_items' => __('Search ' . ($args['plural-ies']
                    ? substr($ucFirstTitle, 0, -1) : $ucFirstTitle)
                . $plual,
                'text-domain'),
            'singular_name' => _x($ucFirstTitle,
                'post type singular name', 'text-domain'),
            'view_item' => __('View ' . $ucFirstTitle, 'text-domain'),
        ],
    ];
    unset($args['plural-ies']);
    $args = wp_parse_args($args, $defaults);
    $postType = isset($args['postType']) ? $args['postType']
        : $sanitizedTitle;
    register_post_type($postType, $args);
}

foreach ($postTypes as $name => $args) {
    register_post_type($name, $args);
}