On Feb 19, 2009, at 10:55 AM, Jochem Maas wrote:
please keep replies on list.
Sorry!
Philip Thompson schreef:
On Feb 19, 2009, at 2:59 AM, Jochem Maas wrote:
Philip Thompson schreef:
Hi all.
....
What are your thoughts? Does this seem like a reasonable
implementation?
Useful? Pointless? Hit me up - I can handle *constructive*
criticism.
But for now, it's late and past my bedtime.
how do you set a property to null?
Oh sure, point that out! JK. I thought of that as well. For members
where 'null' is an option, you may just want to create a definitive
accessor or modify the __call() function. Use a string to represent
null
- I'll use 'nil' from objective-c. Something like this...
yes but then someone might want to set the value to 'nil' or '__nil'
or any other magic value you might want to use.
what about capturing a method name prefix:
$person->unsetFirst();
Yes, that is quite a viable option. I thought about the same thing,
except for setting the member. Modify the __call method to check for
'set' before the member name....
$person->setFirst('John');
$person->setFirst(null);
If you do it this way, there is no doubt that you are wanting to set
the value. And it even allows null.
~Philip
<?php
public function __call ($member, $args)
{
if (property_exists ('Person', $member)) {
if (empty ($args)) {
list ($value) = $this->$member;
return $value;
}
// Test to see if value is 'nil'. If so, set to null.
if (!is_array ($args[0]) && $args[0] == 'nil') {
$args[0] = null;
}
$this->$member = $args;
}
else {
die ("Fatal Error: Call to undefined member: $member.
Exiting...");
}
}
$person = new Person();
$person->first('Billy');
$person->first('nil');
?>
I suppose it's a possibility that someone will assign 'nil' to a
member
as an actual value, so put in some more checking or modify the null
keyword - maybe '__nil' or whatever? That a possibility?
Cheers,
~Phil
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