RE: [PHP-DEV] try..catch and finally From: Zeev Suraski (zeev <email protected>)
Date: 08/31/00

At 19:26 31-08-00, Wez Furlong wrote:
>$db->locktable("ATable");
>try {
> ... modify contents ...
>}
>finally {
> /* always executed */
> $db->unlocktable("ATable");
>}
>
>is nicer (and more maintainable) than
>
>$db->locktable("ATable");
>try {
> ... modify contents ...
> $db->unlocktable("ATable");
> ... loads of cleanup code here ...
>}
>catch($exception) {
> $db->unlocktable("ATable");
> ... loads of cleanup code the same as above here ...
>}

How about simply:

try {
         ... modify contents ...
} catch {
         ... any error recovery code here ...
}
... cleanup code ...

We're mostly gearing try..catch to allow users to handle errors, not
perform cleanups.

>I understand if you don't implement a "finally" mechanism right away, but I
>urge you to keep it in mind while writing the try..catch code; maybe someday
>there will be hundreds of people asking for "finally" :-)

We're not even implementing try..catch right away, let alone try..finally :)

Zeev 

--
Zeev Suraski   <zeev <email protected>>
http://www.zend.com/

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