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

There is no destructor in PHP 4.

Larry

PS The manual has two sets of P documentation: one for PHP 4 &
another for PHP 5. Make sure you're viewing the right set.

Sun, January 28, 2007 6:56 am, Peter Lauri wrote:
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 :-)

Read the ChangeLog, but as I recall, they were introducted in PHP 5
and simply had no corresponding functionality in PHP 4

Though you might be able to hack something with __sleep and __wakeup
in some way to detect death and construction.

Actually, construction should not be terribly difficult, as the parent
constructor is always called, so you can do whatever you want in that
instead of in __construct.

Peter Lauri wrote:
Hi,

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 :-)

Hi Peter,

As you probably already know, PHP 4 constructors are functions named
after the class

<?php
class Foo
{
function Foo()
{
echo "in constructor";
}
}
$a = new Foo;
?>

Although destructor emulation is implemented in the PEAR class
(destructor would be function _Foo), I don't recommend using a
destructor in PHP 4. Instead, manually destruct your objects. PEAR
does it with a shutdown function, so if performance is not a question,
by all means, use PEAR's implementation. It has been battle-tested for
years and years.

However, I wouldn't bother with writing new code in PHP 4. It will be
cheaper for you to switch hosting providers to one that allows you to
use PHP 5. Why? You will waste tons of time working around reference
issues that are non-existent in PHP 5 due to object handles.

Greg