add php dependencies

Author: karson

README.md

@@ -37,7 +37,16 @@ $response = $result->getResponse();
 
 var_dump($response);
 ```
+### Instalation in Laravel
 
+``` php
+// Set the api, public key, provider and environment secret as follows in your .env file
+
+MPESA_API_KEY ="Your API Key";
+MPESA_PUBLIC_KEY='You Public Key'
+MPESA_ENV='test' // 'live' production environment
+MPESA_SERVICE_PROVIDER_CODE=171717
+```
 ### Testing
 
 ``` bash

composer.json

@@ -24,7 +24,9 @@
     ],
     "require": {
         "php": ">=7.3",
-        "guzzlehttp/guzzle": "^7.0"
+        "guzzlehttp/guzzle": "^7.0",
+        "ext-curl": "*",
+        "ext-json": "*"
     },
     "require-dev": {
         "phpunit/phpunit": "^9.3.3"