i added a (hopefully helpfull) addition to the
online notes regarding magic-functions:
http://www.php.net/manual/en/language.oop.magic-functions.php
Here's what i posted, if anyone's interested:
Here is a sample class and some test statements to
demonstrate how __sleep() is used.
If you do not return anything from __sleep(), your
object will *not* be serialized. You must return
something from __sleep() to tell serialize what
to serialize.
<?
// to test the class
$x = new Scott();
print_r($x);
$y = serialize($x);
$z = unserialize($y);
print_r($z);
// Simple class to test __sleep()
class Scott {
// class variables
var $error;
var $svar = array();
// constructor
function Scott() {
$this->svar['Hello'] = "World";
}
function __sleep() {
$this->svar['Hello'] = "Yawn";
// return list of instance-variables to be serialized
return array('error', 'svar');
}
function __wakeup() {
$this->svar['test'] = "I'm here!";
}
}// end class
?>
> -----Original Message-----
> From: Richard Lynch [mailto:[EMAIL PROTECTED]]
> Sent: Wednesday, August 01, 2001 3:52 AM
> To: [EMAIL PROTECTED]
> Subject: [PHP] Re: issues with __sleep() and __wakeup()
>
>
> > class Scott {
> > var $svar = array(); // free-form hash for whatever data
> > function Scott( )
> > {
> > return $this;
>
> Like, I don't think you're supposed to return $this from your constructor...
>
> > }
> > function __sleep()
> > {
>
> According to the manual, this is supposed to return an array of the variable
> names you want serialized.
>
> return(array('svar'));
>
> in this case, I think, would be what you want...
>
> > }
> > function __wakeup()
> > {
> > $this->svar['sleep'] = "I am waking up";
> > }
> > }// end class
>
> Once you get it working, post your sample to the User Contributed notes
> please :-)
>
>
>
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