Bug #52412 [Com]: __autoload fails to throw exception when calling a static method on the class
Edit report at https://bugs.php.net/bug.php?id=52412&edit=1 ID: 52412 Comment by: denis at slik dot eu Reported by:madboyka at yahoo dot com Summary:__autoload fails to throw exception when calling a static method on the class Status: Not a bug Type: Bug Package:Scripting Engine problem Operating System: * PHP Version:5.3.3 Block user comment: N Private report: N New Comment: Can't reproduce this anymore on 5.4.3. Good riddance. Previous Comments: [2012-06-10 17:54:19] rahuijts at tiscali dot nl Please - explain (and let the documentation show) why it is not possible to throw an exception in the __autoload function if a static call is made on a non-existing class, when it is possible to do so if a non-existing class is instantiated, - or reopen this bug report to acknowledge that it should be possible in both cases but currently fails for static calls due to a bug in PHP. The documentation indeed supports the case for this bug report, but to defend der...@php.net as well: the first part of his response is probably a template text when marking a report as "Not a bug". The rest of his message does not mention static calling, which is essential for the problem to occur, so I think he closed the report because he missed that point. Please let us know, because the current status is very confusing. [2011-02-21 19:35:10] php dot net at phrozenbyte dot de I support this re-opening-request... Since 5.3 __autoload() is definitly *not* "the last line of defense for PHP to find a class definition". That's simply wrong. http://www.php.net/manual/en/language.oop5.autoload.php (Note #1 + Example #3) http://www.php.net/manual/en/language.oop5.changelog.php (#5) [2011-02-19 23:06:12] michael at squiloople dot com Here's a request to re-open the bug, for it is indeed a bug: exceptions can be thrown and caught if the method called is _not_ static, as documented, but cannot be thrown and caught if the method _is_ static (and where the class name is not a variable), which is both inconsistent and against the documentation. It is _unexpected_ behaviour. [2011-02-16 15:31:49] madboyka at yahoo dot com To: der...@php.net I don't think you've read the documentation on autoloading yourself: http://www.php.net/manual/en/language.oop5.autoload.php The first note states that since PHP 5.3, you may throw an exception from the autoload function (even if the class can be loaded) and catch that exception without a problem. Examples #3 and #4 in the documentation entry demonstrate this. This works when the autoload function gets invoked when instantiating a class, but doesn't when you make a static call on it. This behavior is not consistent. Also, take a look at michael@...'s workaround, which unexpectedly works great. And don't tell me that PHP behaves as "expected". I understand, that this is not a major bug, we all can live without a fix, but at least mark it as to be fixed in the far future. [2011-02-16 11:24:38] der...@php.net Thank you for taking the time to write to us, but this is not a bug. Please double-check the documentation available at http://www.php.net/manual/ and the instructions on how to report a bug at http://bugs.php.net/how-to-report.php FWIW, this is "expected". The __autoload() method is the last line of defense for PHP to find a class definition. If it can't find it, PHP bails out with a fatal error. If you throw an exception, you basically abort this final chance, and thus gives PHP you that fatal "can not find class" error. However, you can catch the exception in the __autoload() method, The remainder of the comments for this report are too long. To view the rest of the comments, please view the bug report online at https://bugs.php.net/bug.php?id=52412 -- Edit this bug report at https://bugs.php.net/bug.php?id=52412&edit=1
Bug #52412 [Com]: __autoload fails to throw exception when calling a static method on the class
Edit report at https://bugs.php.net/bug.php?id=52412&edit=1
ID: 52412
Comment by: rahuijts at tiscali dot nl
Reported by:madboyka at yahoo dot com
Summary:__autoload fails to throw exception when calling a
static method on the class
Status: Not a bug
Type: Bug
Package:Scripting Engine problem
Operating System: *
PHP Version:5.3.3
Block user comment: N
Private report: N
New Comment:
Please
- explain (and let the documentation show) why it is not possible to throw an
exception in the __autoload function if a static call is made on a non-existing
class, when it is possible to do so if a non-existing class is instantiated,
- or reopen this bug report to acknowledge that it should be possible in both
cases but currently fails for static calls due to a bug in PHP.
The documentation indeed supports the case for this bug report, but to defend
der...@php.net as well: the first part of his response is probably a template
text when marking a report as "Not a bug". The rest of his message does not
mention static calling, which is essential for the problem to occur, so I think
he closed the report because he missed that point. Please let us know, because
the current status is very confusing.
Previous Comments:
[2011-02-21 19:35:10] php dot net at phrozenbyte dot de
I support this re-opening-request... Since 5.3 __autoload() is definitly *not*
"the last line of defense for PHP to find a class definition". That's simply
wrong.
http://www.php.net/manual/en/language.oop5.autoload.php (Note #1 + Example #3)
http://www.php.net/manual/en/language.oop5.changelog.php (#5)
[2011-02-19 23:06:12] michael at squiloople dot com
Here's a request to re-open the bug, for it is indeed a bug: exceptions can be
thrown and caught if the method called is _not_ static, as documented, but
cannot
be thrown and caught if the method _is_ static (and where the class name is not
a
variable), which is both inconsistent and against the documentation. It is
_unexpected_ behaviour.
[2011-02-16 15:31:49] madboyka at yahoo dot com
To: der...@php.net
I don't think you've read the documentation on autoloading yourself:
http://www.php.net/manual/en/language.oop5.autoload.php
The first note states that since PHP 5.3, you may throw an exception from the
autoload function (even if the class can be loaded) and catch that exception
without a problem. Examples #3 and #4 in the documentation entry demonstrate
this. This works when the autoload function gets invoked when instantiating a
class, but doesn't when you make a static call on it. This behavior is not
consistent.
Also, take a look at michael@...'s workaround, which unexpectedly works great.
And don't tell me that PHP behaves as "expected".
I understand, that this is not a major bug, we all can live without a fix, but
at least mark it as to be fixed in the far future.
[2011-02-16 11:24:38] der...@php.net
Thank you for taking the time to write to us, but this is not
a bug. Please double-check the documentation available at
http://www.php.net/manual/ and the instructions on how to report
a bug at http://bugs.php.net/how-to-report.php
FWIW, this is "expected". The __autoload() method is the last line of defense
for PHP to find a class definition. If it can't find it, PHP bails out with a
fatal error. If you throw an exception, you basically abort this final chance,
and thus gives PHP you that fatal "can not find class" error. However, you can
catch the exception in the __autoload() method,
[2011-02-16 08:05:14] michael at squiloople dot com
There's a slight hack of a solution tested using PHP 5.3.5 and Windows Vista:
use a variable as the class name:
function __autoload($class)
{
if (!include $class . '.php')
{
throw new Exception('Cannot autoload ' . $class);
}
}
$class = 'Application';
try
{
$class::start();
}
catch (Exception $e)
{
echo $e->getMessage();
}
// Outputs the exception as expected.
The remainder of the comments for this report are too long. To view
the rest of the comments, please view the bug report online at
https://bugs.php.net/bug.php?id=52412
--
Edit this bug report at https://bugs.php.net/bug.php?id=52412&edit=1
Bug #52412 [Com]: __autoload fails to throw exception when calling a static method on the class
Edit report at http://bugs.php.net/bug.php?id=52412&edit=1
ID: 52412
Comment by: php dot net at phrozenbyte dot de
Reported by:madboyka at yahoo dot com
Summary:__autoload fails to throw exception when calling a
static method on the class
Status: Bogus
Type: Bug
Package:Scripting Engine problem
Operating System: *
PHP Version:5.3.3
Block user comment: N
Private report: N
New Comment:
I support this re-opening-request... Since 5.3 __autoload() is definitly
*not* "the last line of defense for PHP to find a class definition".
That's simply wrong.
http://www.php.net/manual/en/language.oop5.autoload.php (Note #1 +
Example #3)
http://www.php.net/manual/en/language.oop5.changelog.php (#5)
Previous Comments:
[2011-02-19 23:06:12] michael at squiloople dot com
Here's a request to re-open the bug, for it is indeed a bug: exceptions
can be
thrown and caught if the method called is _not_ static, as documented,
but cannot
be thrown and caught if the method _is_ static (and where the class name
is not a
variable), which is both inconsistent and against the documentation. It
is
_unexpected_ behaviour.
[2011-02-16 15:31:49] madboyka at yahoo dot com
To: der...@php.net
I don't think you've read the documentation on autoloading yourself:
http://www.php.net/manual/en/language.oop5.autoload.php
The first note states that since PHP 5.3, you may throw an exception
from the autoload function (even if the class can be loaded) and catch
that exception without a problem. Examples #3 and #4 in the
documentation entry demonstrate this. This works when the autoload
function gets invoked when instantiating a class, but doesn't when you
make a static call on it. This behavior is not consistent.
Also, take a look at michael@...'s workaround, which unexpectedly works
great. And don't tell me that PHP behaves as "expected".
I understand, that this is not a major bug, we all can live without a
fix, but at least mark it as to be fixed in the far future.
[2011-02-16 11:24:38] der...@php.net
Thank you for taking the time to write to us, but this is not
a bug. Please double-check the documentation available at
http://www.php.net/manual/ and the instructions on how to report
a bug at http://bugs.php.net/how-to-report.php
FWIW, this is "expected". The __autoload() method is the last line of
defense for PHP to find a class definition. If it can't find it, PHP
bails out with a fatal error. If you throw an exception, you basically
abort this final chance, and thus gives PHP you that fatal "can not find
class" error. However, you can catch the exception in the __autoload()
method,
[2011-02-16 08:05:14] michael at squiloople dot com
There's a slight hack of a solution tested using PHP 5.3.5 and Windows
Vista:
use a variable as the class name:
function __autoload($class)
{
if (!include $class . '.php')
{
throw new Exception('Cannot autoload ' . $class);
}
}
$class = 'Application';
try
{
$class::start();
}
catch (Exception $e)
{
echo $e->getMessage();
}
// Outputs the exception as expected.
[2010-09-25 23:39:25] alex dot offshore at gmail dot com
Temporary solution.
Caveats and notices:
- The class actually WILL BE DEFINED ANYWAY;
- 'eval' usage;
- __callStatic used to avoid "method not found" error.
getMessage(), "\n";
}
The remainder of the comments for this report are too long. To view
the rest of the comments, please view the bug report online at
http://bugs.php.net/bug.php?id=52412
--
Edit this bug report at http://bugs.php.net/bug.php?id=52412&edit=1
Bug #52412 [Com]: __autoload fails to throw exception when calling a static method on the class
Edit report at http://bugs.php.net/bug.php?id=52412&edit=1
ID: 52412
Comment by: michael at squiloople dot com
Reported by:madboyka at yahoo dot com
Summary:__autoload fails to throw exception when calling a
static method on the class
Status: Bogus
Type: Bug
Package:Scripting Engine problem
Operating System: *
PHP Version:5.3.3
Block user comment: N
Private report: N
New Comment:
Here's a request to re-open the bug, for it is indeed a bug: exceptions
can be
thrown and caught if the method called is _not_ static, as documented,
but cannot
be thrown and caught if the method _is_ static (and where the class name
is not a
variable), which is both inconsistent and against the documentation. It
is
_unexpected_ behaviour.
Previous Comments:
[2011-02-16 15:31:49] madboyka at yahoo dot com
To: der...@php.net
I don't think you've read the documentation on autoloading yourself:
http://www.php.net/manual/en/language.oop5.autoload.php
The first note states that since PHP 5.3, you may throw an exception
from the autoload function (even if the class can be loaded) and catch
that exception without a problem. Examples #3 and #4 in the
documentation entry demonstrate this. This works when the autoload
function gets invoked when instantiating a class, but doesn't when you
make a static call on it. This behavior is not consistent.
Also, take a look at michael@...'s workaround, which unexpectedly works
great. And don't tell me that PHP behaves as "expected".
I understand, that this is not a major bug, we all can live without a
fix, but at least mark it as to be fixed in the far future.
[2011-02-16 11:24:38] der...@php.net
Thank you for taking the time to write to us, but this is not
a bug. Please double-check the documentation available at
http://www.php.net/manual/ and the instructions on how to report
a bug at http://bugs.php.net/how-to-report.php
FWIW, this is "expected". The __autoload() method is the last line of
defense for PHP to find a class definition. If it can't find it, PHP
bails out with a fatal error. If you throw an exception, you basically
abort this final chance, and thus gives PHP you that fatal "can not find
class" error. However, you can catch the exception in the __autoload()
method,
[2011-02-16 08:05:14] michael at squiloople dot com
There's a slight hack of a solution tested using PHP 5.3.5 and Windows
Vista:
use a variable as the class name:
function __autoload($class)
{
if (!include $class . '.php')
{
throw new Exception('Cannot autoload ' . $class);
}
}
$class = 'Application';
try
{
$class::start();
}
catch (Exception $e)
{
echo $e->getMessage();
}
// Outputs the exception as expected.
[2010-09-25 23:39:25] alex dot offshore at gmail dot com
Temporary solution.
Caveats and notices:
- The class actually WILL BE DEFINED ANYWAY;
- 'eval' usage;
- __callStatic used to avoid "method not found" error.
getMessage(), "\n";
}
[2010-09-03 03:26:56] php dot net at phrozenbyte dot de
Same on Ubuntu 10.04 / Apache 2.2 and CLI mode
Test script:
---
Expected result:
Exception caught
Actual result:
--
Fatal error: Class 'Foo' not found in /home/daniel/www/other/php-bug.php
on line 0
The remainder of the comments for this report are too long. To view
the rest of the comments, please view the bug report online at
http://bugs.php.net/bug.php?id=52412
--
Edit this bug report at http://bugs.php.net/bug.php?id=52412&edit=1
Bug #52412 [Com]: __autoload fails to throw exception when calling a static method on the class
Edit report at http://bugs.php.net/bug.php?id=52412&edit=1
ID: 52412
Comment by: madboyka at yahoo dot com
Reported by:madboyka at yahoo dot com
Summary:__autoload fails to throw exception when calling a
static method on the class
Status: Bogus
Type: Bug
Package:Scripting Engine problem
Operating System: *
PHP Version:5.3.3
Block user comment: N
Private report: N
New Comment:
To: der...@php.net
I don't think you've read the documentation on autoloading yourself:
http://www.php.net/manual/en/language.oop5.autoload.php
The first note states that since PHP 5.3, you may throw an exception
from the autoload function (even if the class can be loaded) and catch
that exception without a problem. Examples #3 and #4 in the
documentation entry demonstrate this. This works when the autoload
function gets invoked when instantiating a class, but doesn't when you
make a static call on it. This behavior is not consistent.
Also, take a look at michael@...'s workaround, which unexpectedly works
great. And don't tell me that PHP behaves as "expected".
I understand, that this is not a major bug, we all can live without a
fix, but at least mark it as to be fixed in the far future.
Previous Comments:
[2011-02-16 11:24:38] der...@php.net
Thank you for taking the time to write to us, but this is not
a bug. Please double-check the documentation available at
http://www.php.net/manual/ and the instructions on how to report
a bug at http://bugs.php.net/how-to-report.php
FWIW, this is "expected". The __autoload() method is the last line of
defense for PHP to find a class definition. If it can't find it, PHP
bails out with a fatal error. If you throw an exception, you basically
abort this final chance, and thus gives PHP you that fatal "can not find
class" error. However, you can catch the exception in the __autoload()
method,
[2011-02-16 08:05:14] michael at squiloople dot com
There's a slight hack of a solution tested using PHP 5.3.5 and Windows
Vista:
use a variable as the class name:
function __autoload($class)
{
if (!include $class . '.php')
{
throw new Exception('Cannot autoload ' . $class);
}
}
$class = 'Application';
try
{
$class::start();
}
catch (Exception $e)
{
echo $e->getMessage();
}
// Outputs the exception as expected.
[2010-09-25 23:39:25] alex dot offshore at gmail dot com
Temporary solution.
Caveats and notices:
- The class actually WILL BE DEFINED ANYWAY;
- 'eval' usage;
- __callStatic used to avoid "method not found" error.
getMessage(), "\n";
}
[2010-09-03 03:26:56] php dot net at phrozenbyte dot de
Same on Ubuntu 10.04 / Apache 2.2 and CLI mode
Test script:
---
Expected result:
Exception caught
Actual result:
--
Fatal error: Class 'Foo' not found in /home/daniel/www/other/php-bug.php
on line 0
[2010-07-23 09:34:02] madboyka at yahoo dot com
Description:
I've tried to do the following:
1. Wrote and autoload method, that throws an exception.
3. Made a static call on a non-existing class within a try block.
Tried this on windows 7 / Apache 2.2 / PHP 5.3.3.
Test script:
---
http://bugs.php.net/bug.php?id=52412&edit=1
Bug #52412 [Com]: __autoload fails to throw exception when calling a static method on the class
Edit report at http://bugs.php.net/bug.php?id=52412&edit=1
ID: 52412
Comment by: michael at squiloople dot com
Reported by:madboyka at yahoo dot com
Summary:__autoload fails to throw exception when calling a
static method on the class
Status: Open
Type: Bug
Package:Scripting Engine problem
Operating System: Windows
PHP Version:5.3.3
Block user comment: N
Private report: N
New Comment:
There's a slight hack of a solution tested using PHP 5.3.5 and Windows
Vista:
use a variable as the class name:
function __autoload($class)
{
if (!include $class . '.php')
{
throw new Exception('Cannot autoload ' . $class);
}
}
$class = 'Application';
try
{
$class::start();
}
catch (Exception $e)
{
echo $e->getMessage();
}
// Outputs the exception as expected.
Previous Comments:
[2010-09-25 23:39:25] alex dot offshore at gmail dot com
Temporary solution.
Caveats and notices:
- The class actually WILL BE DEFINED ANYWAY;
- 'eval' usage;
- __callStatic used to avoid "method not found" error.
getMessage(), "\n";
}
[2010-09-03 03:26:56] php dot net at phrozenbyte dot de
Same on Ubuntu 10.04 / Apache 2.2 and CLI mode
Test script:
---
Expected result:
Exception caught
Actual result:
--
Fatal error: Class 'Foo' not found in /home/daniel/www/other/php-bug.php
on line 0
[2010-07-23 09:34:02] madboyka at yahoo dot com
Description:
I've tried to do the following:
1. Wrote and autoload method, that throws an exception.
3. Made a static call on a non-existing class within a try block.
Tried this on windows 7 / Apache 2.2 / PHP 5.3.3.
Test script:
---
http://bugs.php.net/bug.php?id=52412&edit=1
Bug #52412 [Com]: __autoload fails to throw exception when calling a static method on the class
Edit report at http://bugs.php.net/bug.php?id=52412&edit=1 ID: 52412 Comment by: alex dot offshore at gmail dot com Reported by:madboyka at yahoo dot com Summary:__autoload fails to throw exception when calling a static method on the class Status: Open Type: Bug Package:Scripting Engine problem Operating System: Windows PHP Version:5.3.3 Block user comment: N New Comment: Temporary solution. Caveats and notices: - The class actually WILL BE DEFINED ANYWAY; - 'eval' usage; - __callStatic used to avoid "method not found" error. getMessage(), "\n"; } Previous Comments: [2010-09-03 03:26:56] php dot net at phrozenbyte dot de Same on Ubuntu 10.04 / Apache 2.2 and CLI mode Test script: --- Expected result: Exception caught Actual result: -- Fatal error: Class 'Foo' not found in /home/daniel/www/other/php-bug.php on line 0 [2010-07-23 09:34:02] madboyka at yahoo dot com Description: I've tried to do the following: 1. Wrote and autoload method, that throws an exception. 3. Made a static call on a non-existing class within a try block. Tried this on windows 7 / Apache 2.2 / PHP 5.3.3. Test script: --- http://bugs.php.net/bug.php?id=52412&edit=1
Bug #52412 [Com]: __autoload fails to throw exception when calling a static method on the class
Edit report at http://bugs.php.net/bug.php?id=52412&edit=1 ID: 52412 Comment by: php dot net at phrozenbyte dot de Reported by:madboyka at yahoo dot com Summary:__autoload fails to throw exception when calling a static method on the class Status: Open Type: Bug Package:Scripting Engine problem Operating System: Windows PHP Version:5.3.3 Block user comment: N New Comment: Same on Ubuntu 10.04 / Apache 2.2 and CLI mode Test script: --- Expected result: Exception caught Actual result: -- Fatal error: Class 'Foo' not found in /home/daniel/www/other/php-bug.php on line 0 Previous Comments: [2010-07-23 09:34:02] madboyka at yahoo dot com Description: I've tried to do the following: 1. Wrote and autoload method, that throws an exception. 3. Made a static call on a non-existing class within a try block. Tried this on windows 7 / Apache 2.2 / PHP 5.3.3. Test script: --- http://bugs.php.net/bug.php?id=52412&edit=1
