From:
Operating system: Windows XP SP3
PHP version: 5.3.6
Package: Reproducible crash
Bug Type: Bug
Bug description:array_walk_recursive corruption
Description:
------------
I'm getting the crash in 5.3.6 and 5.3.7-dev from SVN.
The initial code was part of an exception handler and its purpose was to
generate a nicely formatted plain-text message to be emailed to me when
there
was an exception.
I've reduced the code to the following example. No extensions required.
Tested with 5.3.0 - 5.3.5 - all working fine.
Tested with 5.3.6 and my own build 5.3.7-dev - crash.
The specifics of this code is to take an array (a stripped down stack
trace),
and pad the elements so that they can be written out in a "table" format,
all
nicely
vertically aligned.
The crash comes during shutdown, not whilst running my code.
Depending upon the amount of additional code, I can either get corrupted
output
or a crash.
The "Expected result" below is for PHP 5.3.5 and the "Actual result" below
is
for PHP 5.3.6. Both are the official builds with no php.ini loaded.
The current example just outputs corrupted data.
Adding more code often results in an access violation.
Test script:
---------------
<?php
function arrayPad(array &$data, array $alignments, array &$widths = Null)
{
$widths = array('name' => 7, 'age' => 2);
echo 'Widths within ', __FUNCTION__, ' before array_walk_recursive ',
var_export($widths, True), PHP_EOL;
$b_Result = array_walk_recursive($data, function(&$value, $key)
use($widths, $alignments) {
$value = str_pad($value, $widths[$key], ' ',
isset($alignments[$key]) ?
$alignments[$key] : STR_PAD_RIGHT);
});
echo 'Widths within ', __FUNCTION__, ' after array_walk_recursive ',
var_export($widths, True), PHP_EOL;
return $b_Result;
}
$alignments = array('age' => STR_PAD_LEFT); // Force the age to be right
aligned.
$data = array( // A list of names and ages.
array('name' => 'Richard', 'age' => 43,),
array('name' => 'Oscar', 'age' => 2,),
);
arrayPad($data, $alignments, $widths);
echo 'The data ', var_export($data, True), PHP_EOL, 'The alignments ',
var_export($alignments, True), PHP_EOL, 'The widths returned by arrayPad ',
var_export($widths, True);
Expected result:
----------------
php-5.3.5\php -n -f err_001.php
Widths within arrayPad before array_walk_recursive array (
'name' => 7,
'age' => 2,
)
Widths within arrayPad after array_walk_recursive array (
'name' => 7,
'age' => 2,
)
The data array (
0 =>
array (
'name' => 'Richard',
'age' => '43',
),
1 =>
array (
'name' => 'Oscar ',
'age' => ' 2',
),
)
The alignments array (
'age' => 0,
)
The widths returned by arrayPad array (
'name' => 7,
'age' => 2,
)
Actual result:
--------------
php-5.3.6\php -n -f err_001.php
Widths within arrayPad before array_walk_recursive array (
'name' => 7,
'age' => 2,
)
Widths within arrayPad after array_walk_recursive ! 1 ââ¨â²âºâº
â¥
â ! Rich
The data array (
0 =>
array (
'name' => 'Richard',
'age' => '43',
),
1 =>
array (
'name' => 'Oscar ',
'age' => ' 2',
),
)
The alignments array (
'age' => 0,
)
The widths returned by arrayPad array (
)
--
Edit bug report at http://bugs.php.net/bug.php?id=54470&edit=1
--
Try a snapshot (PHP 5.2):
http://bugs.php.net/fix.php?id=54470&r=trysnapshot52
Try a snapshot (PHP 5.3):
http://bugs.php.net/fix.php?id=54470&r=trysnapshot53
Try a snapshot (trunk):
http://bugs.php.net/fix.php?id=54470&r=trysnapshottrunk
Fixed in SVN:
http://bugs.php.net/fix.php?id=54470&r=fixed
Fixed in SVN and need be documented:
http://bugs.php.net/fix.php?id=54470&r=needdocs
Fixed in release:
http://bugs.php.net/fix.php?id=54470&r=alreadyfixed
Need backtrace:
http://bugs.php.net/fix.php?id=54470&r=needtrace
Need Reproduce Script:
http://bugs.php.net/fix.php?id=54470&r=needscript
Try newer version:
http://bugs.php.net/fix.php?id=54470&r=oldversion
Not developer issue:
http://bugs.php.net/fix.php?id=54470&r=support
Expected behavior:
http://bugs.php.net/fix.php?id=54470&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=54470&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=54470&r=submittedtwice
register_globals:
http://bugs.php.net/fix.php?id=54470&r=globals
PHP 4 support discontinued: http://bugs.php.net/fix.php?id=54470&r=php4
Daylight Savings: http://bugs.php.net/fix.php?id=54470&r=dst
IIS Stability:
http://bugs.php.net/fix.php?id=54470&r=isapi
Install GNU Sed:
http://bugs.php.net/fix.php?id=54470&r=gnused
Floating point limitations:
http://bugs.php.net/fix.php?id=54470&r=float
No Zend Extensions:
http://bugs.php.net/fix.php?id=54470&r=nozend
MySQL Configuration Error:
http://bugs.php.net/fix.php?id=54470&r=mysqlcfg
