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Refulz.com:
The __toString() Method - Objects as Strings
February 09, 2012 @ 09:27:19

On the Refulz.com blog there's a recent post introducing the __toString() magic method in PHP. This handy method allows you to define how to return an object when it's referenced as a string.

We started the study of PHP magic methods by learning about __get() magic method. [...] PHP is loosely typed language and same variable can be used or referred as string, number or object. The __toString() method is called when the code attempts to treat an object like a string. This function does not accept any arguments and should return a string.

Some quick code is included showing how it works - returning a combined string made from two private class properties when the object ($obj) is echoed out. They also show multiple ways of using the method in both pre- and post-PHP 5.2.

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