Using arrays from config files with Zend Framework

api_config.ini

analytic_sensor_id = "05D2D6AB-B9CE-4BAC-98FB-EB96F25F0D29"
analytic_endpoint_url[localhost8000] = "http://localhost:8000/"
analytic_api_key[localhost8000] = "snafu"
analytic_endpoint_url[localhost9000] = "http://localhost:9000/"
analytic_api_key[localhost9000] = "fubar"

app.php

<?php
$analyticConfigs = [];

$apiConfig  = Zend_Registry::get('api_config');
$sensorId = $apiConfig->analytic_sensor_id;

foreach ($apiConfig->analytic_api_key as $clientName => $apiKey){
	$analyticConfigs[$clientName]['apiKey'] = $apiKey;
}

foreach ($apiConfig->analytic_endpoint_url as $clientName => $endpointUrl){
	$analyticConfigs[$clientName]['endpointUrl'] = $endpointUrl;
}

// Another config file (not shown here) for non-secure data
$config  = Zend_Registry::get('config');
$configFromLti = filter_var($config->analytic_config_from_lti_request, FILTER_VALIDATE_BOOLEAN);
$debugMode = filter_var($config->analytic_debug_mode, FILTER_VALIDATE_BOOLEAN);
$connectionTimeoutMs = intval($config->analytic_connection_timeout_ms, 10);

$sensor = new Sensor($sensorId);

foreach ($analyticConfigs as $clientName => $clientParams) {
	if (array_key_exists('apiKey', $clientParams) && array_key_exists('endpointUrl', $clientParams)) {
		$sensor->registerClient($clientName . 'Http',
			new Client($clientName . 'ClientId',
				(new Options())
					->setApiKey($clientParams['apiKey'])
					->setDebug($debugMode)
					->setHost($clientParams['endpointUrl'])
					->setConnectionTimeout($connectionTimeoutMs)
			)
		);
	}
}

This is one way to do it. Each client is expected to have a name, so that's given as the index to various parameter names. Maybe a better way would be to specify them in the config as:

analytic.sensor_id = "05D2D6AB-B9CE-4BAC-98FB-EB96F25F0D29"
analytic.localhost8000.endpoint_url = "http://localhost:8000/"
analytic.localhost8000.api_key = "snafu"
analytic.localhost9000.endpoint_url = "http://localhost:9000/"
analytic.localhost9000.api_key = "fubar"

That would require different code to find and access all the values, but it's probably possible. I just don't know whether specifying multiple values is better this way or as coded above.