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By gauravjassal
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Submitted: Nov 09 2009 / 15:02

Observer pattern in PHP using SPL
The Observer pattern defines a mechanism by which components can opt-in to receive messages when a target object changes its state. Its works similar to Listening to a Change event for a object or Trigger in a database, which runs a stored procedure when a table row is modified.
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jakyra replied ago:

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This leaves out how to remove observers from a subject.

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gauravjassal replied ago:

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I didn't write any code to remove the observer. But I think it will be as simple as adding them. You can remove remove observer in detach function.

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