Merge pull request #102 from w3guy/master

PHP 8 fix: $parameter parameter of request() accepts an array as default not NULL

Author: mariacha

src/Mailchimp.php

@@ -263,7 +263,7 @@ protected function addBatchOperation($method, $path, $parameters = []) {
    *
    * @throws MailchimpAPIException
    */
-  public function request($method, $path, $tokens = NULL, $parameters = NULL, $batch = FALSE, $returnAssoc = FALSE) {
+  public function request($method, $path, $tokens = NULL, $parameters = [], $batch = FALSE, $returnAssoc = FALSE) {
     if (!empty($tokens)) {
       foreach ($tokens as $key => $value) {
         $path = str_replace('{' . $key . '}', $value, $path);

src/MailchimpCampaigns.php

@@ -135,7 +135,7 @@ public function getSendChecklist($campaign_id) {
       'campaign_id' => $campaign_id,
     ];
 
-    return $this->request('GET', '/campaigns/{campaign_id}/send-checklist', $tokens, NULL);
+    return $this->request('GET', '/campaigns/{campaign_id}/send-checklist', $tokens, []);
   }
 
   /**
@@ -251,7 +251,7 @@ public function unschedule($campaign_id) {
       'campaign_id' => $campaign_id,
     ];
 
-    return $this->request('POST', '/campaigns/{campaign_id}/actions/unschedule', $tokens, NULL);
+    return $this->request('POST', '/campaigns/{campaign_id}/actions/unschedule', $tokens, []);
   }
 
   /**
@@ -271,7 +271,7 @@ public function send($campaign_id, $batch = FALSE) {
       'campaign_id' => $campaign_id,
     ];
 
-    return $this->request('POST', '/campaigns/{campaign_id}/actions/send', $tokens, NULL, $batch);
+    return $this->request('POST', '/campaigns/{campaign_id}/actions/send', $tokens, [], $batch);
   }
 
   /**