[RESOLVED] Resetting an Object

[voidstate]

I want to write a method which resets an abject to its initial state by unsetting all properties except those set in the constructor.

How do I get all the properties in an object so I can loop through them?

Thanks

voidstate

[laserlight]

It might be possible with the reflection features introduced in PHP5, but a more normal approach would simply be to define the method and manually unset the required properties.

[voidstate]

The reset method will reside in the parent, though, so won't know what properties to unset...

[laserlight]

The reset method will reside in the parent, though, so won't know what properties to unset...

The child classes can override the parent's reset() method.

[voidstate]

Found it: get object vars()

Thanks for helping laserlight.

[laserlight]

Found it: get object vars()

Interesting. However, that will not work within a method of the class. You would have to call it from outside the class. If you call it on $this, you risk getting an incomplete set of member variables.

[voidstate]

It appears to work fine. Here's my method, in case anyone's interested.

function reset()
{
	$current_properties = get_object_vars( $this );
	$default_properties = get_class_vars( get_class( $this ) );
	if( empty( $default_properties ) )
		$default_properties = array();

foreach( $current_properties as $property => $value )
{
	if( !key_exists( $property, $default_properties ) ) // unset
	{
		unset( $this->{ $property } );
	}
	elseif( $property != 'DbAccess' && $property != 'UriManager' ) // reset
	{
		$this->{ $property }  =  $default_properties[ $property ];
	}
}
}

voidstate