From b93aefc1a78c65ffdad5ff772f1116aaa0434837 Mon Sep 17 00:00:00 2001
From: Nikita Popov <nikita.ppv@gmail.com>
Date: Sun, 27 Jan 2019 20:50:08 +0100
Subject: [PATCH] Fix assign to self detection

---
 Zend/zend_compile.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Zend/zend_compile.c b/Zend/zend_compile.c
index 8bdc14d4e20..6985e1bcaa2 100644
--- a/Zend/zend_compile.c
+++ b/Zend/zend_compile.c
@@ -2611,7 +2611,7 @@ zend_bool zend_is_assign_to_self(zend_ast *var_ast, zend_ast *expr_ast) /* {{{ *
 		return 0;
 	}
 
-	while (zend_is_variable_or_call(var_ast)) {
+	while (zend_is_variable(var_ast) && var_ast->kind != ZEND_AST_VAR) {
 		var_ast = var_ast->child[0];
 	}