Re: __construct __destruct in PHP 4

Peter Lauri wrote: > Hi, > > Yes I have been reading both sections and is aware of the different sections > for PHP 4 and 5. I was just hoping there was something missing in the manual > for PHP 4 as I'd love to have a __destruct method to work with. There are > other solutions around this. Basically I just want to make sure that the > objects that have a save() method are saved correctly before they are > destroyed. With PHP 4 I just need to do this "manually". I could probably > just write a cleanup function that will be executed in the end of each > scripts that checks if objects have a save() method and then executes that > one. Or better: Check if there is a method __destruct() existing and use > that when cleaning up. Then it would be forward compatible with PHP 5 as > well :) alternative: have each object register itself with a 'stack' and register a shutdown function which automatically calls the save() method of each object in said stack... be careful to always using the 'reference' operator. I wouldn't bother to try and make it php4/php5 compatible - the reference operator of itself will make sure that you have to change the code for php5, besides that __destruct() is not 'meant' to be called by userland code - and as far as I can tell it's a bit lame (there is no garanteed order of destruction so you can't rely on other object still being around and IIRC [somebody correct me if I'm wrong please] things like DB connections are also gone by the time __destruct() is called - the same goes for access to STDIN, STDOUT, etc. > > Best regards, > Peter Lauri > > www.dwsasia.com - company web site > www.lauri.se - personal web site > www.carbonfree.org.uk - become Carbon Free > > > -----Original Message----- > From: Larry E. Ullman [mailto:LarryUllman@DMCInsights.Com] > Sent: Sunday, January 28, 2007 4:09 PM > To: Peter Lauri > Cc: php-general@lists.php.net > Subject: Re: [PHP] __construct __destruct in PHP 4 > >> I have been trying going thru the PHP manual to find if there are any >> equivalent to the __contruct and __destruct in PHP 4, but I cannot >> find any >> solution for this part. I know it was introduced in PHP 5, but as >> __sleep >> and __wakeup exist in PHP 4 already I was hoping there is something >> like >> __init and __die in PHP 4 :-) > > In PHP 4 the constructor has the same name as the class (like C++). See > http://us3.php.net/manual/en/language.oop.constructor.php > > There is no destructor in PHP 4. > > Larry > > PS The manual has two sets of OOP documentation: one for PHP 4 & > another for PHP 5. Make sure you're viewing the right set. >