Use utf8mb4 encoding for DB connection
This will bring emoji support for the chat.
Change-Id: I8a76828cebeef03b120a95ed34ebe77753d02f5e
diff --git a/php/db.php b/php/db.php
index 1291b10..5da1ede 100644
--- a/php/db.php
+++ b/php/db.php
@@ -6,4 +6,4 @@
$conn = new mysqli($credentials->servername(), $credentials->username(), $credentials->password(), $credentials->dbname());
if ($conn->connect_error) die("Connection failed: " . $conn->connect_error);
-$conn->set_charset("utf8");
+$conn->set_charset("utf8mb4");