Planning Your Facebook Application

This is part one of a series – the technical how-to of creating the application will be discussed in a separate article. This article is intended to help you plan out your application to best prepare for coding and best leverage the new aspects of Facebook for exposure and social interaction.

Creating a Multi-Level Listbox in PHP/mySQL

This lets you create a nested multi-level category menu through PHP and mySQL. Using a recursive function, we can display an unlimited number of nested categories, for a drop down box that might look like this: Fruit — Apples —->Red Delicious —->Granny Smith

Checkboxes/Multiple Select Boxes in PHP

For the PHP newbie, checkboxes and/or multiple select listboxes can be baffling in the beginning. It’s actually not very hard at all, and is often one of the PHP newbie’s first experience with arrays.

More About register_globals

If you’ve been directed to this page, that means that you’re complaining about how your variables in a POST or GET aren’t being carried over to the next page. You’ve been sent here because its an *extremely* common pitfall, and yet one that is exceptionally easy to work around if you know what to do…

Cropped Thumbnails using PHP and the GD Library

This code will allow you to create a thumbnail from a segment of the image. In some situations, you want to thumbnail an entire image – but other times, you may want only a piece – for example if you wish to generate square thumbnail images regardless of whether or not the original image is…

Dynamic Watermarks/Text Overlay on Images in PHP

This code can be useful for a number of things, such as making dynamic banners or for adding a copyright type of watermark to photographs or artwork (as we do in snipe gallery). As usual, this will not work for gifs unless you have a version of gd that lets you do that (cuz the…

Dynamic thumbnailing with PHP and the GD library

Although there are loads of ways you can do this, for this example, we’re assuming that the fullsize image is located in a directory called “images”, and the thumbnails will have the same name as the fullsize, but will be copied into a directory called “thumbs”. <?php // find out the current size info $photo_filename…

Dynamic thumbnailing with PHP and Imagemagick

This code formatting is a little off, since the WYSIWG editor seems to have eaten part of it. Sorry. <?php /* ———————————————- */ /* ———— BEGIN PHP SNIPPET —————-*/ /* ———————————————- */ // specify your file details $current_file = “image.jpg”; $max_width = “150”; // get the current info on the file $current_size = getimagesize($current_file); $current_img_width…

Sending HTML/Plain Text Mail Simultaneously using PHP

Although I expect this article to cause a few ruffled feathers amongst the programming community (since most of them are against HTML email), there are times when the client will ask for it anyway, so you have to know how to do it. We had run into difficulty finding a straight answer on this topic,…