1 files changed, 15 insertions, 0 deletions
diff --git a/matrix-specification/Enums/UserIdentifierType.php b/matrix-specification/Enums/UserIdentifierType.php
new file mode 100644
index 0000000..d4be36e
--- /dev/null
+++ b/matrix-specification/Enums/UserIdentifierType.php
@@ -0,0 +1,15 @@
+<?php
+
+namespace Matrix\Enums;
+
+enum UserIdentifierType: string implements \JsonSerializable
+{
+  case USER = "m.id.user";
+  case THIRDPARTY = "m.id.thirdparty";
+  case PHONE = "m.id.phone";
+
+  public function jsonSerialize(): string
+  {
+    return $this->value;
+  }
+}