PHP SDK Initialization

StandardCheckoutClient class will be used to communicate with the PhonePe APIs. You can create the instance only once per runtime; hence use the correct credentials while initializing the object. Use required credentials while initializing the object.

Parameter Name	Data Type	Mandatory (Yes/No)	Description
`client_id`	String	Yes	Your unique client ID for secure communication with PhonePe.
`client_version`	Integer	Yes	Client version for secure communication with PhonePe.
`client_secret`	String	Yes	Secret key provided by PhonePe Payment Gateway, which must be securely stored.
`env`	String	Yes	Environment for the client: • PRODUCTION

Sample code

<?php

require_once 'vendor/autoload.php'; // Include Composer autoloader

use PhonePe\payments\v2\standardCheckout\StandardCheckoutClient;
use PhonePe\Env;

$clientId = "YOUR_CLIENT_ID"; // Replace with your Client ID
$clientVersion = YOUR_CLIENT_VERSION ;           // Replace with your Client Version
$clientSecret = "YOUR_CLIENT_SECRET"; // Replace with your Client Secret
$env = Env::PRODUCTION;  // Use Env::PRODUCTION for live environment

$client = StandardCheckoutClient::getInstance(
    $clientId,
    $clientVersion,
    $clientSecret,
    $env
);

// Now you can use $client to interact with the PhonePe API.

?>

Please note that the StandardCheckoutClient follows the singleton pattern.

This means that calling getInstance() will always return the same client instance for a given set of credentials.

Configuration Instructions.

• Replace “YOUR_CLIENT_ID”, YOUR_CLIENT_VERSION, and “YOUR_CLIENT_SECRET” with your actual PhonePe Merchant credentials.

ℹ️ PHP SDK Environment & Event Publishing!

The PHP SDK currently supports only the Production environment.
The fifth parameter ($shouldPublishEvents) is optional.
Set it to true to enable event publishing, which helps PhonePe collect analytics and monitoring data.
By default, this is set to false.

⚠️ Protect Your Client Secret!

Treat your Client Secret like a password.
Never expose it in client-side code or commit it to version control systems (e.g., Git).
Store it securely using environment variables or a secure configuration management tool.

What’s Next?

As you now understand how to use the StandardCheckoutClient class to interact with the PhonePe APIs and how to initialize it, let’s proceed to initiating a payment.

Next, let’s learn how to initiate a payment using the StandardCheckoutPayRequestBuilder::builder().