From: Ilia Alshanetsky <iliaa@php.net>
Date: Fri, 16 Jul 2004 02:03:25 +0000 (+0000)
Subject: MFB: Fixed bug #28800 (strings beginning with "inf" improperly converted).
X-Git-Tag: PRE_ZEND_VM_DISPATCH_PATCH~494
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=6dd2613d7ba7d2a8e34a99e6bfeda44ddb540323;p=php

MFB: Fixed bug #28800 (strings beginning with "inf" improperly converted).
---

diff --git a/Zend/zend_operators.h b/Zend/zend_operators.h
index c6182ff6b6..b6b845ae76 100644
--- a/Zend/zend_operators.h
+++ b/Zend/zend_operators.h
@@ -87,6 +87,8 @@ static inline zend_bool is_numeric_string(char *str, int length, long *lval, dou
 				*lval = local_lval;
 			}
 			return IS_LONG;
+		} else if (end_ptr_long == str && *end_ptr_long != '\0') { /* ignore partial string matches */
+			return 0;
 		}
 	} else {
 		end_ptr_long=NULL;
diff --git a/tests/lang/bug28800.phpt b/tests/lang/bug28800.phpt
new file mode 100644
index 0000000000..f81ad7fec9
--- /dev/null
+++ b/tests/lang/bug28800.phpt
@@ -0,0 +1,17 @@
+--TEST--
+Bug #28800 (Incorrect string to number conversion for strings starting with 'inf')
+--FILE--
+<?php
+	$strings = array('into', 'info', 'inf', 'infinity', 'infin', 'inflammable');
+	foreach ($strings as $v) {
+		echo ($v+0)."\n";
+	}
+?>
+--EXPECT--
+0
+0
+0
+0
+0
+0
+