Daniel0

It isn't random. It's pseudorandom. Given the same seed, you'll always get the same number. PRNGs generate numbers that are difficult to predict without the seed so they look random.

1+i

This one for vim: https://github.com/tomasr/molokai

I'm not sure it's worth adding one more example in a new language. Any Turing-complete language will be able to express the Y combinator (though some prettier than others). LOL. I know what kind of face I'd be getting if I said that to my colleagues because I named all my functions y($x) x($y). Well, if you know what the Y combinator is, then you'll understand the naming convention of $f and $g. If you don't, giving them other names wouldn't help you at all

It's the Y combinator, so it's called "Y" on purpose. It computes the fixpoint in (untyped) λ-calculus. $f and $g are just functions, so they're properly named as well by standard mathematical conventions. Given to Y is a function that given a "partial" Fibonacci function returns a new function that can compute one more recursive step of the Fibonacci function, so to speak (that is, if it can compute f(n), then the new function can compute f(n+1)). The fixpoint of this function is the "full" Fibonacci function. The Y combinator allows you to express any recursive computation without using recursion.

Nah... a perfect script should stick as close to λ-calculus and functional programming as possible. For instance, clearly this is the most elegant way to print the first 10 Fibonacci numbers: <?php function Y($f) { $ff = function($f) { return $f($f); }; // PHP doesn't allow function call chaining return $ff( function ($g) use ($f) { return $f(function() use ($g) { return call_user_func_array($g($g), func_get_args()); }); } ); } $fib = Y(function($fib) { return function($n) use ($fib) { return $n === 0 ? 0 : ($n === 1 ? 1 : $fib($n-1) + $fib($n-2)); }; }); function tabulate($n, $f) { $g = Y(function($a) use ($n, $f) { return function($l, $m) use ($n, $a, $f) { return $n === $m ? $l : $a(array_merge([$f($m)], $l), $m + 1); }; }); return $g([], 0); } $disp = function($f, $n) { printf("f(%d) = %d\n", $n, $f($n)); }; tabulate(10, function($n) use ($fib, $disp) { $disp($fib, $n); }); Output: f(0) = 0 f(1) = 1 f(2) = 1 f(3) = 2 f(4) = 3 f(5) = 5 f(6) = 8 f(7) = 13 f( = 21 f(9) = 34

Sticky topics in PHP Help are obviously not supposed to be asking for help. That would be pointless. Seeing as no staff member has got around to stickying this yet, I'll just do it.

Deprecating the working volenteered staff structure further. Guru and PFR have never been considered staff. Read the stickies... For the record, I still have the same permissions on the forums that I had before. You can consider that a warning. Stop trolling the forums.

Has anyone ever read those? Just because you have a habit of not reading rules, stickies and other important information doesn't mean nobody else do...

You can integrate that with PHP Unix man pages as well to get the full documentation. pear channel-discover doc.php.net pear install doc.php.net/pman Now you should be able to access PHP documentation like pman strpos. Then it's just a matter of setting keywordprg to pman for PHP files in vim.

I don't think you got my point. Take phpfreaks.com for instance. With all the custom installations and configurations, there is no way shared hosting would work for us even if they provided us with enough resources (disk space, bandwidth, memory, CPU time, etc.). There is just not enough flexibility for our needs. This is completely regardless of resource usage and others might very well have the need for this kind of flexibility without having high resource needs. Setting up an SVN repo was just an example.

Man... I've always wanted to know what the last digit of pi is. Can you post it here? Besides, I wouldn't call calculating a lot of pi's digits or generating reverse lookup and rainbow tables for "normal usage". What makes you say that? What if you want to run custom services like your own SVN repository? What if you just don't want other people on your system for security/stability reasons? What if you just want to manage your own software or don't want to have to go through the hoops of various control panels to do something you can do efficiently from the shell? The minimal required RAM for a desktopless Debian install is 64 MB RAM. The recommended minimum is 256 MB. If you don't install some bloated cPanel or whatever (or even worse, a desktop environment), you'll do just fine starting out with 256 MB. To be honest, I don't see the point in paying for more when you can upgrade at any time you want.

You must be every salesman's dream. Easy to oversell. I bet you would do just fine with 256 MB. The benefit of a VPS is that you can change how much memory you're allowed to allocate while it's running, so it's just a matter of contacting the sales department asking for an upgrade. Why would you pay for something you don't need? Especially seeing as you've got a £20/mo max. Reaching that will be much easier if you scale down your requirements to something realistic. There is no way you'll need 1 GB (or even 2 GB) memory if you don't even have any traffic yet. Also, "unmetered bandwidth"? That's not going to happen. At least not within your price range.

Are you sure you need 1 GB memory? This server uses about 1 GB of memory right now. It has a semi-large database, an active forum, an IRC server and corresponding IRC services as well as a daemon for a live chat client. What kind of traffic do you have?

The Java Runtime VM doesn't compile the code when you execute .class files. At that point it has already been compiled.

Maybe your computer is just slow?

Added.

Have a look at this: http://vim.wikia.com/

There is a GUI version for it. It's called GVim.

There is also a vim plugin for Eclipse.

Mine would be Zend Studio, NetBeans and vim (in no particular order).

This is a continuation of this topic: http://www.phpfreaks.com/forums/index.php/topic,54859.0.html

If you want advanced stuff, you have to move away from PHP book and buy books that deal with general programming stuff. Programming is not just "programming" though. There are many different things you might want to focus on. You could read about algorithms and make your stuff run fast. You could read about things like semantics and lambda calculus to get a better idea of what exactly a programming language is. Maybe things like computability would be interesting, i.e. what is it possible to compute, and can it be done within reasonable time (has a lot to do with algorithms as well). Maybe you would find concurrency and making things run in parallel interesting. Or you might be interested in how to make well designed applications, or how to manage programming projects. There are so many things to programming that it's difficult suggesting an "advanced" book. I might suggest Introduction to Algorithms, but if algorithms aren't really your thing, you might find The Pragmatic Programmer more interesting. Both books can be said to be related to programming, but they are very different books.

We would encourage everybody to introduce themselves here so we might get to know you and "old" members are very welcome to introduce themselves as well.

I've got a VPS. A dedicated server would be overkill for my needs.