Replace utf8_bin collation with utf8mb4_bin in example

bocharsky-bw · web-flow · commit 0392c6002cf1 · 2019-08-07T18:50:45.000+03:00
diff --git a/doctrine/pdo_session_storage.rst b/doctrine/pdo_session_storage.rst
@@ -255,7 +255,7 @@ MySQL
         `sess_data` BLOB NOT NULL,
         `sess_time` INTEGER UNSIGNED NOT NULL,
         `sess_lifetime` MEDIUMINT NOT NULL
-    ) COLLATE utf8_bin, ENGINE = InnoDB;
+    ) COLLATE utf8mb4_bin, ENGINE = InnoDB;
 
 .. note::
 
