From: Rui Hirokawa <hirokawa@php.net>
Date: Fri, 23 Dec 2005 11:15:16 +0000 (+0000)
Subject: MFH: fixed #28899 mb_substr() and substr() work differently when mbstring.func_overlo... 
X-Git-Tag: php-5.1.2RC2~102
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=cf90abfc247160877456bee56c97ad36bd9bef84;p=php

MFH: fixed #28899 mb_substr() and substr() work differently when mbstring.func_overload is enabled.
---

diff --git a/ext/mbstring/mbstring.c b/ext/mbstring/mbstring.c
index 7e665c37d4..c21c54a93a 100644
--- a/ext/mbstring/mbstring.c
+++ b/ext/mbstring/mbstring.c
@@ -1763,6 +1763,11 @@ PHP_FUNCTION(mb_substr)
 		}
 	}
 
+	if (((MBSTRG(func_overload) & MB_OVERLOAD_STRING) == MB_OVERLOAD_STRING)
+		&& (from >= mbfl_strlen(&string))) {
+		RETURN_FALSE;
+	}
+
 	ret = mbfl_substr(&string, &result, from, len);
 	if (ret != NULL) {
 		RETVAL_STRINGL((char *)ret->val, ret->len, 0);		/* the string is already strdup()'ed */