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Re: [PHP] Why does PHP have __toString() and not just toString()

Posted by M. Sokolewicz on 04/12/05 15:26

Rory Browne wrote:
> I was wondering that as well. While I was at it, I wondered why not
> use __to_str(), as per the PHP coding guidelines.

because that's *against* php coding guidelines :)
You should have a look at the guidelines for METHOD-naming, which is
part of the OOP part. It states that for method names, the camelcaps
convention is used (aka "studly caps")

- tul
>
> While I'm at it, why is grass green, and milk white?
>
> On Apr 12, 2005 10:27 AM, Richard Davey <rich@launchcode.co.uk> wrote:
>
>>Hello Tim,
>>
>>Tuesday, April 12, 2005, 10:07:44 AM, you wrote:
>>
>>TB> I'm wondering, why does the toString() of classes have two underscored
>>TB> preceding it [e.g. __toString()], as opposed to Java's normal toString()?
>>
>>TB> What's the purpose of the two underscores in PHP's classes?
>>
>>The short answer: Because PHP isn't Java.
>>
>>The long answer: Two underscores denote what PHP refers to as a "magic
>>method". You shouldn't have your own functions with the same names
>>(unless you require that magical functionality). Have a look in the
>>PHP manual under the "Magic Methods" section for more info / examples.
>>
>>Best regards,
>>
>>Richard Davey
>>--
>>http://www.launchcode.co.uk - PHP Development Services
>>"I do not fear computers. I fear the lack of them." - Isaac Asimov
>>
>>--
>>PHP General Mailing List (http://www.php.net/)
>>To unsubscribe, visit: http://www.php.net/unsub.php
>>
>>

 

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