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In-Reply-To: <9db916bc0910101434x507e05b9r2651eaa67f833164@mail.gmail.com>
Date: Sun, 11 Oct 2009 14:24:32 +0400
Cc: internals@lists.php.net
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Message-ID: <0B02A3B0-ED1F-40CC-AC55-D6D191C86715@gmail.com>
References: <9db916bc0910101434x507e05b9r2651eaa67f833164@mail.gmail.com>
To: Rune Kaagaard <rumi.kg@gmail.com>
Subject: Re: [PHP-DEV] Re: Creating an experimental syntax
From: indeyets@gmail.com (Alexey Zakhlestin)


On 11.10.2009, at 1:34, Rune Kaagaard wrote:

> Dear Internals
>
> At the moment I'm very inspired by functional programming languages
> such as SML and especially scala. I would like to create and
> alternative PHP syntax, just for fun nothing serious, inspired by
> these languages. I've managed to compile PHP with debug stuff turned
> on and found some files called zend_language_scanner.l,
> zend_language_parser.y and did succed with creating an alias for
> "function" called "def". I now wanted to change the function
> definition into something more scala looking:
>
> def max($x, $y) = {
>  if ($x > $y) return $x else return $y
> }
>
> but got completely stuck.
>
> I realised all of a sudden that I really don't understand anything
> about what is going on in these files. Not even enough to ask good
> questions. What should I do/read/study/buy/etc... ????
>
> Thx in advance from a very confused dude that is in way over his head

Well, in case of php-5.3+ there is partial support for functional  
paradigm.

try this:


<?php

$max = function($x, $y) {
     if ($x > $y)
         return $x;
     else
         return $y;
};

echo $max(5, 1);
echo $max(4, 99);
?>

http://docs.php.net/manual/en/functions.anonymous.php