interface PropertyChangedListener (View source)

Contract for classes that are potential listeners of a NotifyPropertyChanged implementor.

Methods

void
propertyChanged(object $sender, string $propertyName, mixed $oldValue, mixed $newValue)

Notifies the listener of a property change.

Details

void propertyChanged(object $sender, string $propertyName, mixed $oldValue, mixed $newValue)

Notifies the listener of a property change.

Parameters

object $sender The object on which the property changed.
string $propertyName The name of the property that changed.
mixed $oldValue The old value of the property that changed.
mixed $newValue The new value of the property that changed.

Return Value

void