Merge pull request #60 from GigSalad/main

Add PHP 8.1 compatibility

Author: Aman Aalam

README.md

@@ -7,14 +7,14 @@ The Trolley PHP SDK provides integration access to the Trolley API.
 
 ## Requirements
 
-PHP version >= 5.4.0 is required.
+PHP version >= 7.0.0 is required.
 
 The following PHP extensions are required:
 
-curl
-json
-mbstring
-openssl
+`curl`
+`json`
+`mbstring`
+`openssl`
 
 ## Installation & Usage
 

composer.json

@@ -15,7 +15,7 @@
         }
     ],
     "require": {
-        "php": ">=5.4",
+        "php": ">=7.0",
         "ext-curl": "*",
         "ext-json": "*",
         "ext-mbstring": "*",

lib/Trolley/Configuration.php

@@ -468,7 +468,7 @@ public function sslOn()
                 $ssl = true;
                 break;
            }
-           if (substr($this->_environment, 0, strlen('localhost')) === 'localhost') {
+           if (substr($this->_environment ?? '', 0, strlen('localhost')) === 'localhost') {
                $ssl = false;
            }
 

lib/Trolley/ResourceCollection.php

@@ -56,6 +56,7 @@ public function  __construct($response, $items, $pager)
     /**
      * returns the current item when iterating with foreach
      */
+    #[\ReturnTypeWillChange]
     public function current()
     {
         return $this->_items[$this->_index];
@@ -71,6 +72,7 @@ public function firstItem()
         return $this->_items[0];
     }
 
+    #[\ReturnTypeWillChange]
     public function key()
     {
         return null;
@@ -79,6 +81,7 @@ public function key()
     /**
      * advances to the next item in the collection when iterating with foreach
      */
+    #[\ReturnTypeWillChange]
     public function next()
     {
         ++$this->_index;
@@ -87,6 +90,7 @@ public function next()
     /**
      * rewinds the testIterateOverResults collection to the first item when iterating with foreach
      */
+    #[\ReturnTypeWillChange]
     public function rewind()
     {
         $this->_index = 0;
@@ -95,6 +99,7 @@ public function rewind()
     /**
      * returns whether the current item is valid when iterating with foreach
      */
+    #[\ReturnTypeWillChange]
     public function valid()
     {
         if ($this->_index >= count($this->_items)) {