return type adjustments, fixes #2290

Closes #2290

Merge request studip/studip!1514

1 files changed, 19 insertions, 0 deletions

diff --git a/lib/classes/sidebar/LinkElement.php b/lib/classes/sidebar/LinkElement.php
index 8b20dbe..8e3e270 100644
--- a/lib/classes/sidebar/LinkElement.php
+++ b/lib/classes/sidebar/LinkElement.php
@@ -247,21 +247,40 @@ class LinkElement extends WidgetElement implements ArrayAccess
 
     // Array access for attributes
 
+    /**
+     * @todo Add bool return type when Stud.IP requires PHP8 minimal
+     */
+    #[ReturnTypeWillChange]
     public function offsetExists($offset)
     {
         return isset($this->attributes[$offset]);
     }
 
+    /**
+     * @param $offset
+     * @return mixed
+     *
+     * @todo Add mixed return type when Stud.IP requires PHP8 minimal
+     */
+    #[ReturnTypeWillChange]
     public function offsetGet($offset)
     {
         return $this->attributes[$offset];
     }
 
+    /**
+     * @todo Add void return type when Stud.IP requires PHP8 minimal
+     */
+    #[ReturnTypeWillChange]
     public function offsetSet($offset, $value)
     {
         $this->attributes[$offset] = $value;
     }
 
+    /**
+     * @todo Add void return type when Stud.IP requires PHP8 minimal
+     */
+    #[ReturnTypeWillChange]
     public function offsetUnset($offset)
     {
         unset($this->attributes[$offset]);