The following script is a single interface for pre-validating any HTML form. It lets you validate your form data the way you want, while handling the rudimentary tasks itself.

1) Change just one variable to make it work with $_GET or $_POST or $_REQUEST.

2) Name which elements are 'required' all at once in a hidden HTML text input.

3) Easily provide field descriptions in hidden HTML text inputs that you can use to print error statements.

4) Call a single function to print out error statements that you can easily style with CSS.

5) It automatically checks if fields marked 'required' have been filled out.

Most of the pre-validation code is from PHP 5: Unleashed by Sams Publishing. I found it extremely useful for a recent project. Sharing it here, I removed some unnecessary functions, and tried to simplify some points.

All the comments are my own; hopefully I provided more than enough explanation.

Simple. It's parse_url, from PHP, implemented in Javascript. Seen a lot of similar ones around the web, but they were all bulky code and none of them took advantage of the RegEx parser in JS.

Applied as a member of the String prototype, so just call as myURL.parseURL(); Will return a named object with naming identical to that of PHP's function.

Additional: if first argument is present, will break the querystring up into name/value pairs, unescaped, and return that instead of the raw querystriing.

Use this to print alternating values from an array.

It cycles through a series of values based on an iteration number.

For example, you could use this for alternating background colors.

If it's a .php page, you can simply include this file where you want a hit counter to appear.

One file - text output. Very simple, very easy. Based off the filename of the page (creates a pagename.counter file to hold the count).
(No use for it myself - made it for a friend).

Software Requirements:

Crypt_HMAC:
http://pear.php.net/package/Crypt_HMAC
HTTP_REQUEST:
http://pear.php.net/package/HTTP_Request
PEAR:
http://pear.php.net/

This is a simple credit card validation class that you can check for most issues before you process you form through paypal, authorize.net, or anywhere else. This also uses my Simple Error Class, the error class is required for this.

Well after searching the internet for something similar to this, I didn't come up with anything...so I made my own! This simple script will track your members' time spent on your website. Please feel free to give comments/suggestions/feedback.

A simple search array example.

Two very usefull functions to have around.

(note: dollarfy requires commify to work)

This small snippet will not allow _POST requests from a 'foreign' domain. It relies on the HTTP_REFERER variable.