Web Development

How To Change The Color Scheme In Aptana Studio

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Aptana Studio is a great tool for web-development. It offers you a wide range of features. One of this features is syntax-highlighting of sourcecode, which means that different parts of the sourcecode will be displayed with different colors, which makes it easier to read the sourcecode. However, if you don’t like the default theme with … Read more

PHP: Get A Random Item From An Array

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In PHP it’s easy to work with arrays. Just declare someting like this:

<?php
$arrX = array("Kay", "Joe","Susan", "Frank");
?>

Now you can access the values with their index (which starts a 0 for the first item).

<?php
// output "Kay"
echo $arrX[0];
 
// output "Susan"
echo $arrX[2];
?>

PHP offers you several ways to get a random value of the array. One simple way is by using the array_rand() function. array_rand() expects the array as a parameter and returns a random index value as integer which then can be used to get the array value.

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How to insert special characters like &, < and > into a JSF component

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If you want to insert a character like & e.g. within a JSF (Java Server Faces) component’s value attribute, you might get an error. To avoid this you must insert a HTML-Entity for the character. Here is a short list for common characters which you might need to replace in your JSF component. Character Entity … Read more

How To Load A Default Image In HTML, If Image Is Not Found

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When creating HTML pages, it can always happen, that you include images into a page that can not be displayed. There are several reasons for this, for example when there is a typo in the source code or the image file has been moved or deleted. In this case, using the JavaScript event handler onerror … Read more

How To Alter Background Colours Of HTML Table Rows With jQuery

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If you have long lists of data displayed as tables, it may be a bit confusing to read a line across its columns. But there is an easy way to make your tables more readable. Just alter the background-colour of your list line-by-line. In this post I’ll show you how to do this by using … Read more