From: Sara Golemon <pollita@php.net>
Date: Tue, 12 Dec 2006 23:25:23 +0000 (+0000)
Subject: MFH: Bugfix# 39435: 'foo' instanceof bar gives invalid opcode error
X-Git-Tag: php-5.2.1RC1~7
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=db87e11e6b1ecb4a50224788c251be2c17ef940a;p=php

MFH: Bugfix# 39435: 'foo' instanceof bar gives invalid opcode error
---

diff --git a/Zend/zend_compile.c b/Zend/zend_compile.c
index 612f523253..43623e200e 100644
--- a/Zend/zend_compile.c
+++ b/Zend/zend_compile.c
@@ -3627,6 +3627,10 @@ void zend_do_instanceof(znode *result, znode *expr, znode *class_znode, int type
 		}
 	}
 
+	if (expr->op_type == IS_CONST) {
+		zend_error(E_COMPILE_ERROR, "instanceof expects an object instance, constant given");
+	}
+
 	opline = get_next_op(CG(active_op_array) TSRMLS_CC);
 	opline->opcode = ZEND_INSTANCEOF;
 	opline->result.op_type = IS_TMP_VAR;