Issue #290 - Support PHP 8.1

.travis.yml

@@ -9,6 +9,7 @@ matrix:
   include:
     - php: '7.4'
     - php: '8.0'
+    - php: '8.1'
 
 before_script:
   - chmod 777 ./tests/travis/setup_arangodb.sh

lib/ArangoDBClient/ConnectionOptions.php

@@ -301,6 +301,7 @@ public function getAll()
      *
      * @return void
      */
+    #[\ReturnTypeWillChange]
     public function offsetSet($offset, $value)
     {
         $this->_values[$offset] = $value;
@@ -319,6 +320,7 @@ public function offsetSet($offset, $value)
      *
      * @return bool - true if option exists, false otherwise
      */
+    #[\ReturnTypeWillChange]
     public function offsetExists($offset)
     {
         return isset($this->_values[$offset]);
@@ -333,6 +335,7 @@ public function offsetExists($offset)
      *
      * @return void
      */
+    #[\ReturnTypeWillChange]
     public function offsetUnset($offset)
     {
         unset($this->_values[$offset]);
@@ -348,6 +351,7 @@ public function offsetUnset($offset)
      *
      * @return mixed - value of option, will throw if option is not set
      */
+    #[\ReturnTypeWillChange]
     public function offsetGet($offset)
     {
         if (!array_key_exists($offset, $this->_values)) {

lib/ArangoDBClient/Cursor.php

@@ -323,6 +323,7 @@ public function getAll()
      *
      * @return void
      */
+    #[\ReturnTypeWillChange]
     public function rewind()
     {
         $this->_position = 0;
@@ -334,6 +335,7 @@ public function rewind()
      *
      * @return array - the current result row as an assoc array
      */
+    #[\ReturnTypeWillChange]
     public function current()
     {
         return $this->_result[$this->_position];
@@ -345,6 +347,7 @@ public function current()
      *
      * @return int - the current result row index
      */
+    #[\ReturnTypeWillChange]
     public function key()
     {
         return $this->_position;
@@ -356,6 +359,7 @@ public function key()
      *
      * @return void
      */
+    #[\ReturnTypeWillChange]
     public function next()
     {
         ++$this->_position;
@@ -371,6 +375,7 @@ public function next()
      * @throws Exception
      * @return bool - true if the cursor can be advanced further, false if cursor is at end
      */
+    #[\ReturnTypeWillChange]
     public function valid()
     {
         if ($this->_position <= $this->_length - 1) {

lib/ArangoDBClient/Document.php

@@ -786,6 +786,7 @@ public function getRevision()
      *
      * @return array - array of all document attributes/values
      */
+    #[\ReturnTypeWillChange]
     public function jsonSerialize(array $options = [])
     {
         return $this->getAll($options);