ParamBag

The ParamBag class provides a simple and consistent way to store, access, and manage static configuration parameters.

This class helps you:

• Retrieve configuration values safely with default fallbacks
• Check if one or more parameters exist
• Add or update parameters dynamically at runtime
• Access all configuration parameters at once

Initialization and Access

<?php

use Krystal\ParamBag\ParamBag;

$params = new ParamBag([
    'site_name' => 'My Website',
    'debug' => true
]);

echo $params->get('site_name'); 
// Output: My Website

Getting values with defaults

echo $params->get('non_existing', 'default_value'); 
// Output: default_value

Checking for existence

if ($params->has('debug')) {
    echo 'Debug mode is enabled.';
}

if ($params->hasMany(['site_name', 'items_per_page'])) {
    echo 'All required parameters are present.';
}

Setting and updating values

$params->set('timezone', 'UTC');
$params->set('debug', false);

$params->setMany([
    'api_key' => '12345',
    'version' => '2.0.1'
]);

print_r($params->getAll());

This will output

[
    'site_name' => 'My Website',
    'debug' => false,
    'timezone' => 'UTC',
    'api_key' => '12345',
    'version' => '2.0.1',
]