From:             [EMAIL PROTECTED]
Operating system: irrelevant
PHP version:      4CVS-2003-07-23 (stable)
PHP Bug Type:     Scripting Engine problem
Bug description:  Applying isset() to a dereferenced string causes leak

Description:
------------
Applying isset() to a dereference element of the string causes a very
small leak.

Reproduce code:
---------------
<?php
$a = "string";
var_dump(isset($a{0}));
?>


Expected result:
----------------
bool(true)

Actual result:
--------------
/home/koizumi/src/php-src-4/Zend/zend_execute.c(2399) : Freeing 0x0837545C
(2 bytes), script=/tmp/test.php

 2397:     zval *str = T->EA.data.str_offset.str;
 2398:     char c = str->value.str.val[T->EA.data.str_offset.offset];
 2399:     T->tmp_var.value.str.val = estrndup(&c, 1);
 2400:     T->tmp_var.value.str.len = 1;
 2401:     isset = 1;
 2402: }


-- 
Edit bug report at http://bugs.php.net/?id=24772&edit=1
-- 
Try a CVS snapshot (php4):  http://bugs.php.net/fix.php?id=24772&r=trysnapshot4
Try a CVS snapshot (php5):  http://bugs.php.net/fix.php?id=24772&r=trysnapshot5
Fixed in CVS:               http://bugs.php.net/fix.php?id=24772&r=fixedcvs
Fixed in release:           http://bugs.php.net/fix.php?id=24772&r=alreadyfixed
Need backtrace:             http://bugs.php.net/fix.php?id=24772&r=needtrace
Try newer version:          http://bugs.php.net/fix.php?id=24772&r=oldversion
Not developer issue:        http://bugs.php.net/fix.php?id=24772&r=support
Expected behavior:          http://bugs.php.net/fix.php?id=24772&r=notwrong
Not enough info:            http://bugs.php.net/fix.php?id=24772&r=notenoughinfo
Submitted twice:            http://bugs.php.net/fix.php?id=24772&r=submittedtwice
register_globals:           http://bugs.php.net/fix.php?id=24772&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=24772&r=php3
Daylight Savings:           http://bugs.php.net/fix.php?id=24772&r=dst
IIS Stability:              http://bugs.php.net/fix.php?id=24772&r=isapi
Install GNU Sed:            http://bugs.php.net/fix.php?id=24772&r=gnused

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