From: todd at amiestreet dot com
Operating system: linux x86 (32 bit)
PHP version: 5.3.0alpha2
PHP Bug Type: JSON related
Bug description: json_encode mutates its parameter and has some class-specific
state
Description:
------------
The second time json_encode is called on objects of a given class, the
private variables of the first *instance* serialize as null.
Also, print_r produces different output after json_encode is called on an
object.
Reproduce code:
---------------
<?php
class Blah {
protected $a = array();
}
$a = new Blah; $b = new Blah;
header('Content-type: text/plain');
print ($s1 = serialize($a)) . "\n";
print "--------------------------------------------------\n";
// Comment out either of the following lines and all is well
$print_a1 = print_r($a, true);
$junk = json_encode($a);
$print_a2 = print_r($a, true);
$junk = json_encode($b); // <-- unrelated variable!!!
print ($s2 = serialize($a)) . "\n\n";
print "\n\n" . $print_a1 . "\n" . $print_a2;
?>
Expected result:
----------------
serialize() called before and after the second json_encode should return
the exact same result, given they're called on the same unmodified
variable. ($s1 and $s2 should be equal but aren't)
$print_a and $print_b should also be equal, but calling json_encode causes
print_r to mistakenly detect recursion.
Actual result:
--------------
O:4:"Blah":1:{s:4:"�*�a";a:0:{}}
--------------------------------------------------
O:4:"Blah":1:{s:4:"�*�a";N;}
Blah Object
(
[a:protected] => Array
(
)
)
Blah Object
(
[a:protected] => Array
*RECURSION*
)
--
Edit bug report at http://bugs.php.net/?id=46215&edit=1
--
Try a CVS snapshot (PHP 5.2):
http://bugs.php.net/fix.php?id=46215&r=trysnapshot52
Try a CVS snapshot (PHP 5.3):
http://bugs.php.net/fix.php?id=46215&r=trysnapshot53
Try a CVS snapshot (PHP 6.0):
http://bugs.php.net/fix.php?id=46215&r=trysnapshot60
Fixed in CVS: http://bugs.php.net/fix.php?id=46215&r=fixedcvs
Fixed in release:
http://bugs.php.net/fix.php?id=46215&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=46215&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=46215&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=46215&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=46215&r=support
Expected behavior: http://bugs.php.net/fix.php?id=46215&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=46215&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=46215&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=46215&r=globals
PHP 4 support discontinued: http://bugs.php.net/fix.php?id=46215&r=php4
Daylight Savings: http://bugs.php.net/fix.php?id=46215&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=46215&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=46215&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=46215&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=46215&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=46215&r=mysqlcfg
