These days a customers website has generated a large amount of traffic because a client site has offered some “bigger” file downloads to their visitors. Normally there is nothing wrong with this kind of downloads on most of the websites, but in this case there are lot of visitors using a file download manager. With the most of these download clients it’s possible to enter a number of maximum connections for each target server. Just imagine if the visitor is using a value of “99″ for a file of only 10MB! This way one file download for one visitor will open 99 connections and the used bandwidth will be almost one gigabyte.

There is a apache module name mod_limitipconn which can handle this task, but what if the website is on some shared web hosting? In the last situation we need to write some extra function: In this small tutorial we are using some some mod_rewrite rule and a download script while the downloads are logged in a database. (more…)

Marino from TechSymptom is great web-designer and started a series of Fireworks tutorials on web 2.0 styled navigation bars. The last one inspired me to create this small CSS tutorial.

After we finished the tutorial we need to create 2 simple images to style our CSS navigation bar: A background image (the light blue bar) and a transparent button that indicate the active state, all other elements are created with CSS.

Like in most CSS horizontal navigation bars an unordered list is used to hold the menu items: (more…)

Since Alexa stopped offering their free thumbnail service last year a lot of thumbnail services are available now. Some of them offering limited free services and others only a paid premium version. On of the bigger and better services is Girafa, a thumbnail service with a free service and also premium services for users with more then 2000 image requests a month.

Joining the service for free is fast and easy, within an hour my account was up and well. (more…)

For the most of the PHP developer which are using preg_match or preg_replace frequently is the function preg_match_all a smaller advantage, but for all others it’s maybe hard to understand. The biggest difference between preg_match_all and the regular preg_match is that all matched values are stored inside a multi-dimensional array to store an unlimited number of matches. With the following example I will try to make clear how its possible to store the image paths inside a web page: (more…)