http://www.good-tutorials.com/user/walkere walkere's submitted tutorials on Good-Tutorials.com. en-us The GD library in PHP offers some great tools for resizing and editing images. However, these can increase load time and it would be beneficial to enable client side caching of these resources. You can do this by adding one simple line of code to your image output. walkere Mon, 03 Mar 2008 01:00:03 +0000 http://www.good-tutorials.com/tutorial/26398/enable-client-side-caching-for-resized-images http://www.good-tutorials.com/tutorial/26398/enable-client-side-caching-for-resized-images Want to randomize and rotate your AdSense ads? Maybe you want to test a new ad format against an old one? You can do that with this simple bit of Javascript. It's easier than you think. walkere Sun, 02 Mar 2008 10:00:02 +0000 http://www.good-tutorials.com/tutorial/26378/how-to-randomly-rotate-adsense-ads-with-javascript http://www.good-tutorials.com/tutorial/26378/how-to-randomly-rotate-adsense-ads-with-javascript Javascript's built in randomizer returns a probability - a random value between 0 and 1. You need to do a little extra work to get a random number that's use-able for picking a random item from a list or working into a game design. This tutorial will show you the standard formula for creating a useful random number from that original randm value. walkere Mon, 25 Feb 2008 22:00:03 +0000 http://www.good-tutorials.com/tutorial/26296/how-to-create-a-useful-random-number-in-javascript http://www.good-tutorials.com/tutorial/26296/how-to-create-a-useful-random-number-in-javascript String replacement is simple enough in PHP - use the str_replace function. Is there an equivalent function we can use in Javascript? walkere Sun, 24 Feb 2008 12:00:04 +0000 http://www.good-tutorials.com/tutorial/26269/how-to-do-string-replacement-in-javascript http://www.good-tutorials.com/tutorial/26269/how-to-do-string-replacement-in-javascript Javascript and DOM make a powerful combination. In this tutorial, you'll learn how some you can use Javascript to build an interactive game board for Tic Tac Toe. walkere Thu, 21 Feb 2008 00:00:01 +0000 http://www.good-tutorials.com/tutorial/26201/javascript-gaming-making-a-game-board http://www.good-tutorials.com/tutorial/26201/javascript-gaming-making-a-game-board This tutorial walks you through using the Digg API to fetch one random story from Digg and display it on your site. Good introduction to using the Digg API for content syndication. Uses PHP and XML. walkere Mon, 18 Feb 2008 17:30:02 +0000 http://www.good-tutorials.com/tutorial/26145/digg-api-how-to-get-a-random-story-from-digg http://www.good-tutorials.com/tutorial/26145/digg-api-how-to-get-a-random-story-from-digg An RSS feed is a great way to serve up your content to users. However, if you're not using a standard CMS or blogging platform you may not have an RSS feed generated for you automatically. This tutorial will show you how to create an RSS feed in a few simple steps. If you can query your database to get information about your articles, you can complete this tutorial and build a custom feed. walkere Sat, 16 Feb 2008 18:30:02 +0000 http://www.good-tutorials.com/tutorial/26130/how-to-create-a-custom-rss-feed-with-php http://www.good-tutorials.com/tutorial/26130/how-to-create-a-custom-rss-feed-with-php This quick tutorial shows you how to use Simple XML to read and manipulate an RSS feed. The end result is a few lines of code that you can use to syndicate a site's feed on your own page - adding links to relevant content for your users. walkere Mon, 11 Feb 2008 01:00:04 +0000 http://www.good-tutorials.com/tutorial/25974/how-to-syndicate-an-rss-feed-on-your-site http://www.good-tutorials.com/tutorial/25974/how-to-syndicate-an-rss-feed-on-your-site This tutorial walks you through how to use a few simple functions - strotime(), date(), and rand() - to find a random date in PHP. The end result is a simple one-line command, which you can place in a function and re-use in your own scripts. walkere Sun, 10 Feb 2008 08:00:02 +0000 http://www.good-tutorials.com/tutorial/25942/how-to-find-a-random-date-in-php http://www.good-tutorials.com/tutorial/25942/how-to-find-a-random-date-in-php This tutorial shows you how to create an 8-character random password to send to implement into your user-management system. walkere Sun, 03 Feb 2008 03:00:01 +0000 http://www.good-tutorials.com/tutorial/25811/how-to-create-a-random-password-for-users http://www.good-tutorials.com/tutorial/25811/how-to-create-a-random-password-for-users Sometimes you want to display an image - but it's not stored in the right size. If you allow the browser to resize the image, it will get distorted and waste bandwidth. Instead, you can use the PHP GD library to resize the image on the fly. This tutorial will show you how to use the GD library to read an image, resize it, and output it as part of an HTML page. walkere Fri, 01 Feb 2008 02:00:01 +0000 http://www.good-tutorials.com/tutorial/25772/how-to-use-php-to-dynamically-resize-an-image http://www.good-tutorials.com/tutorial/25772/how-to-use-php-to-dynamically-resize-an-image Some forms need to be broken up into multiple pieces - but you need to find a way to keep passing information along to the final processing script. With PHP, you can write a very simple function to do all the hard work for you. walkere Tue, 29 Jan 2008 02:30:01 +0000 http://www.good-tutorials.com/tutorial/25717/how-to-make-a-multi-page-form-using-php http://www.good-tutorials.com/tutorial/25717/how-to-make-a-multi-page-form-using-php This tutorial walks you through how to use the crypt() function in php. You'll encrypt a password so that it can be stored in the database, compare a new word to the encrypted password, and use an md5 hash to make sure you encrypt the entire passphrase. walkere Thu, 24 Jan 2008 03:00:02 +0000 http://www.good-tutorials.com/tutorial/25585/how-to-use-the-crypt-function-to-encrypt-and-check-passwords http://www.good-tutorials.com/tutorial/25585/how-to-use-the-crypt-function-to-encrypt-and-check-passwords This tutorial walks you through how to create a custom tooltip using just html and css. No javascript required, and the result is 100% valid and can be easily styled. walkere Sat, 19 Jan 2008 22:25:16 +0000 http://www.good-tutorials.com/tutorial/25478/how-to-create-a-style-able-tooltip-with-html-and-css http://www.good-tutorials.com/tutorial/25478/how-to-create-a-style-able-tooltip-with-html-and-css This tutorial walks you through creating a php script to send a trackback HTTP request to a blog, read the response, and let the user know whether or not the trackback was successful. walkere Thu, 17 Jan 2008 23:30:01 +0000 http://www.good-tutorials.com/tutorial/25390/how-to-write-a-script-to-send-a-trackback http://www.good-tutorials.com/tutorial/25390/how-to-write-a-script-to-send-a-trackback