Edit report at http://bugs.php.net/bug.php?id=32100&edit=1
ID: 32100
Comment by: marcus at lastcraft dot com
Reported by: ceefour at gauldong dot net
Summary: Request 'finally' support for exceptions
Status: Closed
Type: Feature/Change Request
Package: Feature/Change Request
Operating System: *
PHP Version: 5.*
Block user comment: N
Private report: N
New Comment:
Hi...
The lack of finally causes us some crufty hard to debug code. The
comment about swallowing the source of the exception is not an academic
one - I've had grief over this.
As for exceptions being used for "control flow" - they are control flow,
that's the whole point. There is an antiquated argument from the C++ era
about this, mostly driven by outdated performance data. Exceptions are
not the same as errors, being more akin to a continuation when the usual
return path does not make sense.
Please, plase add finally to PHP as Java did to C++.
yours, Marcus
Previous Comments:
------------------------------------------------------------------------
[2010-12-10 12:02:15] joshuaswift at gmail dot com
Please add a finally block for exception handling
------------------------------------------------------------------------
[2010-10-03 07:58:34] matsubokkuri+php at gmail dot com
> c891652 at bofthew dot com
I'm disappointed about this request is closed without critical reasons.
The first comment author doesn't understand OOP correctly. The code
cannot raise
exception to upper class.
The code would be following without finally statement.
// create temporary file
try{
// write to temporary file
}catch(ConnectionException $e){
// delete temporary file
}
// delete temporary file
The "delete temporary file" sentence would be duplicate.
I can write with finally as following without duplicate "delete
temporary file".
// create temporary file
try{
// write to temporary file
}finally{
// delete temporary file
}
------------------------------------------------------------------------
[2010-09-21 09:47:37] c891652 at bofthew dot com
I feel nothing but disappointed that this bug got closed, without "any"
reason being written in the comments.
I also stand for including "finally". It's a well known Exception
Handling control block, and others in this bug have shown clearly why it
is needed.
------------------------------------------------------------------------
[2010-09-09 09:32:40] 128bitencrypted at gmail dot com
I noticed this bug because I have exactly the same problem atm and
finally could solve it. I found a great discussion about the "return"
problem and how it's solved in java. (IMHO I think that's the right
way)
stackoverflow dot com/questions/65035/in-java-does-return-trump-finally
In PHP it could be implemented like the following:
function example1()
{
try {
return "Return\n";
} finally {
echo "Finally\n";
}
}
echo example1();
Output:
Finally
Return
And it's important that finally has the right to overwrite return.
(Although I think that there only a few cases where that would be
useful)
function example2()
{
try {
return "Return wins\n";
} finally {
return "Finally wins\n";
}
}
echo example2();
Output:
Finally wins
I hope that helps a bit more why finally would be a very useful in php!
Thanks.
------------------------------------------------------------------------
[2010-09-09 02:39:42] phplasma at gmail dot com
A finally block would indeed be useful, please reconsider.
------------------------------------------------------------------------
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the rest of the comments, please view the bug report online at
http://bugs.php.net/bug.php?id=32100
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Edit this bug report at http://bugs.php.net/bug.php?id=32100&edit=1
