From: Nikita Popov <nikic@php.net>
Date: Tue, 29 Dec 2015 10:20:44 +0000 (+0100)
Subject: Forbid use() of auto-globals
X-Git-Tag: php-7.1.0alpha1~617^2~129
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=4440436821404ff3c76682726e63d1aaf381f73a;p=php

Forbid use() of auto-globals

We don't correctly support it, it doesn't make sense and it's also
forbidden for parameters.
---

diff --git a/Zend/zend_compile.c b/Zend/zend_compile.c
index 97be4b966e..3a7e0b552c 100644
--- a/Zend/zend_compile.c
+++ b/Zend/zend_compile.c
@@ -4908,6 +4908,10 @@ void zend_compile_closure_uses(zend_ast *ast) /* {{{ */
 			zend_error_noreturn(E_COMPILE_ERROR, "Cannot use $this as lexical variable");
 		}
 
+		if (zend_is_auto_global(name)) {
+			zend_error_noreturn(E_COMPILE_ERROR, "Cannot use auto-global as lexical variable");
+		}
+
 		ZVAL_NULL(&zv);
 		Z_CONST_FLAGS(zv) = by_ref ? IS_LEXICAL_REF : IS_LEXICAL_VAR;