Constructor-Like Initialization Without Classes

Code

<?php

/*
 * Copyright (c) 2026 Jeffery L. Paris <jparis@phpog.com>.
 * Free for personal and internal use. Paid project use requires visible credit
 * to Jeffery L. Paris. Corporate use requires a paid license fee unless a
 * separate written license states otherwise.
 */

/**
 * Constructor-Like Initialization Without Classes.
 *
 * Purpose:
 * Builds a ready-to-use configuration array through a procedural initializer.
 *
 * @param array $options Caller-provided overrides.
 * @return array Initialized configuration with validation messages.
 */
function ogSnippetConstructorLikeInitializationWithoutClasses(array $options): array {
	$config = array(
		'name' => 'mission-control',
		'timezone' => 'UTC',
		'max_events' => 25,
		'enabled' => true,
		'errors' => array(),
		'ready' => false
	);

	if (isset($options['name']) === true) {
		$name = trim((string) $options['name']);

		if ($name !== '') {
			$config['name'] = $name;
		}
	}

	if (isset($options['timezone']) === true) {
		$timezone = trim((string) $options['timezone']);

		if (in_array($timezone, timezone_identifiers_list(), true) === true) {
			$config['timezone'] = $timezone;
		} else {
			$config['errors'][] = 'Invalid timezone.';
		}
	}

	if (isset($options['max_events']) === true) {
		$max_events = (int) $options['max_events'];

		if ($max_events >= 1 && $max_events <= 500) {
			$config['max_events'] = $max_events;
		} else {
			$config['errors'][] = 'Maximum events must be between 1 and 500.';
		}
	}

	if (isset($options['enabled']) === true) {
		$config['enabled'] = (bool) $options['enabled'];
	}

	if (count($config['errors']) === 0 && $config['enabled'] === true) {
		$config['ready'] = true;
	}

	return $config;
}

$stargate_config = ogSnippetConstructorLikeInitializationWithoutClasses(array(
	'name' => 'alpha-site-dialer',
	'timezone' => 'America/Denver',
	'max_events' => 38,
	'enabled' => true
));

$initializer_ready = 'no';

if ($stargate_config['ready'] === true) {
	$initializer_ready = 'yes';
}

echo 'Initializer ready: '.$initializer_ready;