ID: 32171
Updated by: [EMAIL PROTECTED]
Reported By: jr at terragate dot net
Status: Open
Bug Type: SPL related
Operating System: x86 linux
-PHP Version: 5.0.3
+PHP Version: 5CVS-2005-03-05
New Comment:
Please don't open more reports about same issue. (and when you report
bugs, put the LATEST version in the 'Version' field' so we don't have
to waste time asking if you tested the latest version..)
Previous Comments:
------------------------------------------------------------------------
[2005-03-04 18:48:59] jr at terragate dot net
I already tested the bug against yesterdays snapshot of
5.0.x.
Using the 5.1.0 snap does not resolve the exception
issue.
I will test the instanceof segfault on monday against
the 5.1 branch.
Maybe I should create a seperate bug for it.
voyager:~/Downloads/php5-200503041530/result/bin jr$
uname -a
Darwin voyager.starbase12.sfn 7.8.0 Darwin Kernel
Version 7.8.0: Wed Dec 22 14:26:17 PST 2004; root:xnu/
xnu-517.11.1.obj~1/RELEASE_PPC Power Macintosh powerpc
voyager:~/Downloads/php5-200503041530/result/bin jr$ ./
php -v
PHP 5.1.0-dev (cgi) (built: Mar 4 2005 18:33:26)
(DEBUG)
Copyright (c) 1997-2004 The PHP Group
Zend Engine v2.1.0-dev, Copyright (c) 1998-2004 Zend
Technologies
voyager:~/Downloads/php5-200503041530/result/bin jr$ ./
php test.php
Content-type: text/html
X-Powered-By: PHP/5.1.0-dev
<br />
<b>Fatal error</b>: Uncaught exception 'Exception' with
message 'is_a(): Deprecated. Please use the instanceof
operator' in /Volumes/Data/Users/jr/Downloads/php5
-200503041530/result/bin/test.php:6
Stack trace:
#0 /Volumes/Data/Users/jr/Downloads/php5-200503041530/
result/bin/test.php(12): StreamWrapper-
>dir_opendir(NULL, 'AKnownOrUnknown...')
#1 /Volumes/Data/Users/jr/Downloads/php5-200503041530/
result/bin/test.php(12): DirectoryIterator-
>__construct('test://path/', 4)
#2 {main}
thrown in <b>/Volumes/Data/Users/jr/Downloads/php5
-200503041530/result/bin/test.php</b> on line <b>6</
b><br />
/Volumes/Data/Users/jr/Downloads/php5-200503041530/
result/bin/test.php(6) : Fatal error - Uncaught
exception 'Exception' with message 'is_a(): Deprecated.
Please use the instanceof operator' in /Volumes/Data/
Users/jr/Downloads/php5-200503041530/result/bin/
test.php:6
Stack trace:
#0 /Volumes/Data/Users/jr/Downloads/php5-200503041530/
result/bin/test.php(12): StreamWrapper-
>dir_opendir(NULL, 'AKnownOrUnknown...')
#1 /Volumes/Data/Users/jr/Downloads/php5-200503041530/
result/bin/test.php(12): DirectoryIterator-
>__construct('test://path/', 4)
#2 {main}
thrown
------------------------------------------------------------------------
[2005-03-04 16:34:34] [EMAIL PROTECTED]
Please try using this CVS snapshot:
http://snaps.php.net/php5-latest.tar.gz
For Windows:
http://snaps.php.net/win32/php5-win32-latest.zip
------------------------------------------------------------------------
[2005-03-03 17:13:03] jr at terragate dot net
After digging a while in the PHP source I found the reason for the
thrown exception.
The SPL sets the php error handling mode to EH_THROW.
But currently php_error_cb throws everything as exception, even notices
(E_NOTICE), warnings (E_WARNING) and strict warnings caused by
E_STRICT.
IMHO those shouldn't be thrown as exception.
I've made a path that fixes this. E_NOTICE, E_WARNING and E_STRICT will
be handled the same way as in EH_NORMAL.
Probably E_USER_NOTICE and E_USER_WARNING should be added.
http://www.terragate.net/~jr/no_notices_and_warnings_as_exception.diff
------------------------------------------------------------------------
[2005-03-03 15:05:51] jr at terragate dot net
I was able to create a smaller example for the exception:
<?php
class StreamWrapper
{
public function dir_opendir($path, $options) {
return is_a(null, 'AKnownOrUnknownClass');
}
}
stream_wrapper_register('test', 'StreamWrapper');
$it = new DirectoryIterator('test://path/');
?>
This will raise the following exception:
Fatal error: Uncaught exception 'Exception' with message 'is_a():
Deprecated. Please use the instanceof operator' in
/var/www/localhost/htdocs/splexception.php:6
Stack trace:
#0 /var/www/localhost/htdocs/splexception.php(6): is_a(NULL,
'AKnownOrUnknown...')
#1 /var/www/localhost/htdocs/splexception.php(13):
StreamWrapper->dir_opendir('test://path/', 4)
#2 /var/www/localhost/htdocs/splexception.php(13):
DirectoryIterator->__construct('test://path/')
#3 {main}
thrown in /var/www/localhost/htdocs/splexception.php on line 6
This problem does not occur when using opendir so this seems to be SPL
related.
Category changed accordingly
I wasn't able to reproduce the instanceof crash with this small
snippet.
------------------------------------------------------------------------
[2005-03-03 12:37:04] jr at terragate dot net
Description:
------------
PEAR's HTTP_WebDAV_Client causes PHP 5 to trow a deprecated warning as
Exception:
Fatal error: Uncaught exception 'Exception' with message 'is_a():
Deprecated. Please use the instanceof operator' in
/usr/lib/php/PEAR.php:248
Stack trace:
#0 /usr/lib/php/PEAR.php(248): is_a(true, 'PEAR_Error')
#1 /usr/lib/php/HTTP/Request.php(591): HTTP_Request->isError(true)
#2 /usr/lib/php/HTTP/WebDAV/Client/Stream.php(796):
HTTP_Request->sendRequest()
#3 /usr/lib/php/HTTP/WebDAV/Client/Stream.php(446):
HTTP_WebDAV_Client_Stream->_check_options()
#4 /var/www/localhost/htdocs/crash.php(5):
HTTP_WebDAV_Client_Stream->dir_opendir('webdav://test:t...', 4)
#5 /var/www/localhost/htdocs/crash.php(5):
DirectoryIterator->__construct('webdav://test:t...')
#6 {main}
thrown in /usr/lib/php/PEAR.php on line 248
Is this a bug or a feature (deprecation messages thrown as
Exceptions)?
Changing the is_a in PEAR.php to instanceof causes a segfault.
Reproduce code:
---------------
<?php
require_once('HTTP/WebDAV/Client.php');
$it = new DirectoryIterator('webdav://test:[EMAIL PROTECTED]/');
echo 'Done';
?>
for the 'deprecation exception' and a additional change for the
segfault:
PEAR.php ~line 248:
if ($data instanceof PEAR_Error) {
instead of:
if (is_a($data, 'PEAR_Error')) {
This requires a valid webdav URL (I can provide one if necessary).
Expected result:
----------------
Clean shutdown
Actual result:
--------------
[Thread debugging using libthread_db enabled]
[New Thread 16384 (LWP 22648)]
Done
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 16384 (LWP 22648)]
0x00000019 in ?? ()
#0 0x00000019 in ?? ()
#1 0x0829ca06 in _php_stream_free (stream=0x8652714, close_options=3)
at
/var/tmp/portage/php-5.0.3/work/php-5.0.3/main/streams/streams.c:351
#2 0x081b0d74 in spl_ce_dir_object_free_storage (object=0x85e067c)
at
/var/tmp/portage/php-5.0.3/work/php-5.0.3/ext/spl/spl_directory.c:66
#3 0x082e939d in zend_objects_store_del_ref (zobject=0x85f4430)
at
/var/tmp/portage/php-5.0.3/work/php-5.0.3/Zend/zend_objects_API.c:159
#4 0x082cc90f in _zval_dtor (zvalue=0x85da6ac,
__zend_filename=0x84a0800
"/var/tmp/portage/php-5.0.3/work/php-5.0.3/Zend/zend_execute_API.c",
__zend_lineno=392)
at
/var/tmp/portage/php-5.0.3/work/php-5.0.3/Zend/zend_variables.c:61
#5 0x082c19cb in _zval_ptr_dtor (zval_ptr=0x85ddda8,
__zend_filename=0x85f4430 "xA_\b\uffff\001^\b",
__zend_lineno=140461104)
at
/var/tmp/portage/php-5.0.3/work/php-5.0.3/Zend/zend_execute_API.c:392
#6 0x082ccce2 in _zval_ptr_dtor_wrapper (zval_ptr=0x85f4430)
at
/var/tmp/portage/php-5.0.3/work/php-5.0.3/Zend/zend_variables.c:193
#7 0x082d976f in zend_hash_apply_deleter (ht=0x85131b0, p=0x85ddd9c)
at /var/tmp/portage/php-5.0.3/work/php-5.0.3/Zend/zend_hash.c:574
#8 0x082d707c in zend_hash_graceful_reverse_destroy (ht=0x85131b0)
at /var/tmp/portage/php-5.0.3/work/php-5.0.3/Zend/zend_hash.c:640
#9 0x082c123a in shutdown_executor ()
at
/var/tmp/portage/php-5.0.3/work/php-5.0.3/Zend/zend_execute_API.c:208
#10 0x082cddde in zend_deactivate ()
at /var/tmp/portage/php-5.0.3/work/php-5.0.3/Zend/zend.c:818
#11 0x08288352 in php_request_shutdown (dummy=0x0)
at /var/tmp/portage/php-5.0.3/work/php-5.0.3/main/main.c:1212
#12 0x083111b7 in main (argc=2, argv=0xbffff844)
at
/var/tmp/portage/php-5.0.3/work/php-5.0.3/sapi/cli/php_cli.c:1046
------------------------------------------------------------------------
--
Edit this bug report at http://bugs.php.net/?id=32171&edit=1
