From d3d1b17a947e5be68efb2e76358bbba1481d2c3b Mon Sep 17 00:00:00 2001
From: Potsky <potsky@me.com>
Date: Fri, 2 Sep 2022 17:22:27 +0200
Subject: [PATCH] Support European and other servers

---
 src/Amplitude.php | 24 +++++++++++++++++++-----
 1 file changed, 19 insertions(+), 5 deletions(-)

diff --git a/src/Amplitude.php b/src/Amplitude.php
index 317e0fd..318c274 100644
--- a/src/Amplitude.php
+++ b/src/Amplitude.php
@@ -20,6 +20,14 @@ class Amplitude
      */
     protected $apiKey;
 
+    /**
+     * The API URL to use for all events generated by this instance
+     * Default will be const AMPLITUDE_API_URL
+     *
+     * @var string
+     */
+    protected $apiUrl;
+
     /**
      * The event that will be used for the next event being tracked
      *
@@ -118,13 +126,16 @@ public static function getInstance($instanceName = 'default')
      * Constructor, optionally sets the api key
      *
      * @param string $apiKey
-     * @param \Psr\Log $logger
+     * @param string $apiUrl
      */
-    public function __construct($apiKey = null)
+    public function __construct($apiKey = null, $apiUrl = null)
     {
         if (!empty($apiKey)) {
             $this->apiKey = (string)$apiKey;
         }
+        if (!empty($apiUrl)) {
+            $this->apiUrl = (string)$apiUrl;
+        }
         // Initialize logger to be null logger
         $this->setLogger(new Log\NullLogger());
     }
@@ -136,11 +147,13 @@ public function __construct($apiKey = null)
      *
      * @param string $apiKey Amplitude API key
      * @param string $userId
+     * @param string $apiUrl Amplitude API URL
      * @return \Zumba\Amplitude\Amplitude
      */
-    public function init($apiKey, $userId = null)
+    public function init($apiKey, $userId = null, $apiUrl = null)
     {
         $this->apiKey = (string)$apiKey;
+        $this->apiUrl = (string)$apiUrl;
         if ($userId !== null) {
             $this->setUserId($userId);
         }
@@ -487,11 +500,12 @@ protected function sendEvent()
         if (empty($this->event) || empty($this->apiKey)) {
             throw new \InternalErrorException('Event or api key not set, cannot send event');
         }
-        $ch = curl_init(static::AMPLITUDE_API_URL);
+        $url = empty($this->apiUrl) ? static::AMPLITUDE_API_URL : $this->apiUrl;
+        $ch = curl_init($url);
         if (!$ch) {
             // Could be a number of PHP environment problems, log a critical error
             $this->logger->critical(
-                'Call to curl_init(' . static::AMPLITUDE_API_URL . ') failed, unable to send Amplitude event'
+                'Call to curl_init(' . $url . ') failed, unable to send Amplitude event'
             );
             return;
         }