diff --git a/third_party/phpcommon b/third_party/phpcommon
new file mode 160000
index 0000000..5fb5d7f
--- /dev/null
+++ b/third_party/phpcommon
@@ -0,0 +1 @@
+Subproject commit 5fb5d7f6fcd174b9c4ad4e30e189e90e2b8c846e