From ad370ff72bd28ebbcb1087138c926ef93eab394b Mon Sep 17 00:00:00 2001
From: Michael Wallner <mike@php.net>
Date: Tue, 5 Sep 2017 12:27:38 +0200
Subject: [PATCH] context: avoid duplicate registration of enum constants

---
 src/context.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/context.c b/src/context.c
index ea36917..bc3fb45 100644
--- a/src/context.c
+++ b/src/context.c
@@ -340,6 +340,11 @@ zend_function_entry *psi_context_compile(struct psi_context *C)
 					name = strpprintf(0, "psi\\%s\\%s", e->name, item->name);
 				}
 
+				if (zend_get_constant(name)) {
+					zend_string_release(name);
+					continue;
+				}
+
 				zc.name = zend_string_dup(name, 1);
 				ZVAL_LONG(&zc.value, psi_long_num_exp(item->num, NULL, NULL));
 				zend_register_constant(&zc);
-- 
2.30.2