Resize image on the fly with GD

 
Description: This is a nifty function to resize an image of unknown height and width to a pre-determined size. This is very useful if you have user submitted images, like the ones here on php builder.
Added on: 02-Aug-2005 Hits: 431
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Regular Expressions in PHP

 
Description: Regular expressions are a powerful tool for examining and modifying text. Regular expressions themselves, with a general pattern notation almost like a mini programming language, allow you to describe and parse text. They enable you to search for patterns within a string, extracting matches flexibly and precisely. However, you should note that because regular expressions are more powerful, they are also slower than the more basic string functions. You should only use regular expressions if you have a particular need. This tutorial gives a brief overview of basic regular expression syntax and then considers the functions that PHP provides for working with regular expressions.
Added on: 29-Oct-2007 Hits: 193
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Reducing Exploits

 
Description: When dealing with PHP, especially dynamics, it's important to always consider security. Here are some simple tips that will help you deal with the most common of those problems and exploits.
Added on: 26-Jun-2005 Hits: 227
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Redirecting Users

 
Description: PHP has the capability of doing thousands of different useful things. On of those useful things, is the ability to redirect users using HTTP headers alone. This is different from using plain HTML Meta tags to redirect, as using this method the user won't even see the redirect occur. This can be very useful in creating a page that redirects to different pages, depending on the input to the script.
Added on: 13-Feb-2005 Hits: 264
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Reading and Writing Files

 
Description: I'm sure many of you use databases, such as the ever popular MySQL, to hold all your website content, articles, possibly even images. What many of you may not know is that before databases, everyone used to use flat files. Actually, databases are simply flat files with some special data arrangements and indexing. So what are flat files? Simply put, they are ordinary files that you and I manipulate every day, such as txt files, images and word documents.
Added on: 13-Feb-2005 Hits: 229
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Rasmus ajax tutorial

 
Description: A simple ajax tutorial.
Added on: 27-Jan-2007 Hits: 344
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Random links and images with php and mysql

 
Description: This script allows any number of images to be referenced and have an associated hyperlink attached, which makes it great for 88x31 buttons which are commonplace throughout the web. The script requires a web server with PHP and a MySQL database to store the data.
Added on: 27-Apr-2005 Hits: 345
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Print Date

 
Description: Learn how to use the date formats in php. This tutorial is very simple.
Added on: 16-Oct-2005 Hits: 224
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Prevent SQL Injections in PHP

 
Description: One of the things that most scared me when creating database driven applications with PHP was the thought of someone messing with my database by using SQL injection attacks. I had heard about this from various times before thanks to other sites, but didn’t really know what it meant or what harm it could cause. In this article, I hope to enlighten you.
Added on: 05-Feb-2007 Hits: 282
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Prevent Hot Linking

 
Description: If you are tired of people linking to your precious images then this tutorial will help.
Added on: 24-Jan-2007 Hits: 276
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