diff --git a/src/php/bin/interop_client.sh b/src/php/bin/interop_client.sh
new file mode 100755
index 00000000000..e934c8db978
--- /dev/null
+++ b/src/php/bin/interop_client.sh
@@ -0,0 +1,6 @@
+#!/bin/sh
+
+set +e
+cd $(dirname $0)
+php -d extension_dir=../ext/grpc/modules/ -d extension=grpc.so \
+  ../tests/interop/interop_client.php $@ 1>&2