Define class variable in PHP that is not stored along with the object instance

Question

I have a simple class:

class obj__image extends obj__file {

    public $dimensions;
    public $storedDPI;
    public $colorProfile;

}

When i store an instance of this to my session (for example), the object gets serialized and stored away. That's fine.

But is there any way to define a class variable, such as the above $colorProfile so that it will not be stored when storing/serializing the object?

Mark Baker · Accepted Answer · 2013-10-19 18:07:51Z

2

You can control exactly which properties are included in a serialized object by defining a magic __sleep() method for the class. The __sleep() method should return an array of property names: those property names listed in the array will be included in the serialized object, any other unlisted properties will be discarded

answered Oct 19, 2013 at 18:07

Mark Baker

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