Not A n00b » code

jQueryui drop down menu

pyr0t3chnician — Wed, 15 Jul 2009 01:26:22 +0000

I was going to title this post: “jQuery, your friend and enemy” because I spent close to 2 hours today hating it and thinking of coding my own functions rather than trying to work with it. Eventually I figured out what I was doing and made it work beautifully with the custom ui template I made at their website. Because I learned it, I figured I would share it.

The menu is very simple, and very customizable. Because I am using a jQuery theme/template, you may have to tweak yours a little to take out the icons. First the jQuery code in the header:

<script type="text/javascript">
$(document).ready(function(){
	$('ul#icons li').hover(
		function() { $(this).addClass('ui-state-hover'); }, 
		function() { $(this).removeClass('ui-state-hover'); }
	);
	$('#menu').hover(
		function() { $('ul#icons').show('fast'); }, 
		function() { $('ul#icons').hide('fast'); }
	);
});
script>

For jQuery n00bs, there are 2 things done here when the page loads. The first is it adds a hover class to my links (which I chose to do as a list). With a little editing, you could make it add a cover class to anything you want. Secondly, I add another hover function to the tag with the id “menu”. This one will show the list with the id=”icons” when I hover over it, and take it away when I move my mouse away. Not to mention, it is animated slightly, so it drops down, which is something that would take a hell of a lot more lines than just 3-4 to do.

Now for a little css to make our menu fantabulous and have it stuck at the top of the page:

	



Menu

Home
View Orders
View Tickets

Thats it! Good luck. I will post more jQuery tutorials as I figure stuff out.

PHP/Perl If trick using ? and :

pyr0t3chnician — Mon, 13 Jul 2009 20:14:38 +0000

Most experienced programmers already know this, but this is a quick trick that will save you a few lines of code if you have a really simple if-statement to display one thing or another. This works with both PHP and Perl and will help you cut down some coding time. For this post we will show PHP. Lets begin:


$id=$_GET['id'];
if($id==1)
   echo "Welcome Guest, please register to use this page.";
else
   echo "Welcome back!";
?>

This is fairly simple to understand, and most people have statements like this through out any webpage. There is a trick that makes the coding much shorter. I have no idea what it is called, so we will call it an inline-if-statement. It utilizes the question mark (?) and colon (:) to execute simple if statements. Lets rewrite the above code:


$id=$_GET['id'];
echo "Welcome ".($id==1?"Guest, please register to use this page.":"back!");
?>

We summed up those 4 lines into one line of code. I typically encase the statement in parenthesis, but you don’t need to. The first part is the if-statement. If($id==1) becomes $id==1?. Then if $id was equal to 1, it would append "Guest, please register to use this page." to "Welcome ". else is now just a colon : and separates the two values.

Why is this useful? Well its quicker code. 4 lines of code is now compressed to a single line.

Why would you not use it? Well if you need to do other things within the if-statement. This is strictly for displaying data. If you need to change variable values, or call a function, then you would definitely not use this. You would also not use this if you have “else if” statements. This is strictly, if-else.

Hope this helps!

PHP IRC Bot Class

pyr0t3chnician — Mon, 06 Jul 2009 02:12:39 +0000

I just added an updated version of my PHP IRC Bot Class to the code bin. Basically it is a class that anyone can use to create a PHP bot that connects to any IRC network in just a few lines of code. Full documentation is provided.

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jQueryui drop down menu

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PHP/Perl If trick using ? and :

PHP IRC Bot Class