Web applications have made huge leaps and bounds in improving user experience thanks to a lot of recently developed Ajax technology. When you combine some neat functionality courtesy of PHP with the cleverness of javascript you can produce some pretty cool results. In an effort to help you take it up a notch, we’d like to share some methods for helping your site anticipate a user’s next move.

The list below is made up of the best 20 FREE PHP Components and Tutorials that you will likely need in many of your projects, they are all of the highest quality and more or less easy to configure. Give them a try.

pChart is a PHP class oriented framework designed to create aliased charts. Most of todays chart libraries have a cost, our project is intended to be free. Data can be retrieved from SQL queries, CSV files, or manually provided. This project is still under development and new features or fix are made every week. Focus has been put on rendering quality introducing an aliasing algorithm to draw eye candy graphics. Rendering speed has been dramatically enhanced since the first version, we’ll still continue optimising the code!

PHP component ready to use to implement a search form with an autosuggest feature using PHP and MySQL.

If you are a huge fan of WordPress’ method of individual article deletion where you click the delete link, the menu item animates red, and the item disappears. Here’s how to achieve that functionality with MooTools javascript.

if(isset($_GET['delete'])) { $query = 'DELETE FROM my_table WHERE item_id = '.(int)$_GET['delete']; $result = mysql_query($result,$link); }

Data validation is an integral part of working with forms. Not only can invalid submitted data lead to security problems, but it can also break your webpage. In this tutorial we’ll take a look at how to remove illegal characters and validate data by using the “filter_var” function.

In this tutorial you will learn how to build a login system with PHP and MYSQL. Many, many features will be covered; including MySqli, Prepared Statements, jQuery, Classes, Sessions, Cookies, etc.

In this tutorial you will learn how to create a simple PHP class that will:

Create a database

Connect to a database

Display a form with two fields

Save the form data in the database

Display the saved data from the database

If you are a regular at Reddit, you must have noticed the way people vote there. You can either vote up or vote down. Pretty interesting, huh? This tutorial will show you how to create such a voting system with jQuery, PHP and MySQL.

Check out the demo here

This is a PHP Page class that handles the database queries, generating ajax page navigation and even creates the Javascript for you.

Check out the demo here

Looking for a solution to cache heavy pages and just serve a static html version for a little while now, and here is a solution in output buffering.

Check out the demo here

A simple way to keep track of many files is to use a directory tree. A directory tree lists out files and directories so that it’s easy to find what you’re looking for. In this tutorial, we will create a directory tree using PHP and jQuery.

Check out the demo here

Learn how you can use jQuery, PHP and a little ajax to connect up to the Twitter API and return results. When you load your HTML it will call the javascript function getSearch() to return Twitter Search API results every 30 seconds.

Backing up data is extremely important. Most of the time the database is the most important piece of the puzzle. Imagine losing all of the data in your database — it would be tragic. Here’s a PHP snippet that outputs your database as XML. Here is how the output will look like.

<database name="my_database"> <table name="noupe_comments"> <columns> <column name="comment_ID" blob="0" maxlength="" multiple_key="0" not_null="1" numeric="1" primary_key="1" table="noupe_comments" type="int" default="" unique_key="0" unsigned="1" zerofill="0" /> <column name="comment_post_ID" blob="0" maxlength="" multiple_key="1" not_null="1" numeric="1" primary_key="0" table="noupe_comments" type="int" default="" unique_key="0" unsigned="0" zerofill="0" />

Check out the demo here

Learn how to integrate a custom google search results on your site, and style it to your liking.

A simple straightforward function that sends HTML e-mails with a plain text counterpart for those over 80 and still using AOL 2.5.

In this tutorial we are going to learn how to validate your forms using PHP and jQuery in both sides: client side (using javascript with jQuery) and server side (using PHP). It will be interesting to see how to use regular expressions to validate different kind of e-mails, passwords and more.

Check out the demo here

how to create a dynamic ajax based shoutbox with jQuery from scratch. It will be very interesting to know how to use the ajax function of jQuery and how it can be used to insert and recover data from a MySQL database via PHP in a way asynchronous.

Check out the demo here

When you’re using a sophisticated design, CSS files can quickly become very long, and takes time to load. Here are 3 interresting ways of compressing CSS files by using PHP.

The major advantage of this script is that it allows you to resize and crop any image on my website without touching the actual image or writing any code.

19. PHP Contact Form Script

This contact form will return a validation message if the message was sent successfully. It will also display an error message if you try to send an empty message or if the e-mail is invalid.

Expert Opinion Looking for an easier alternative to PHP forms? Use our free PHP Form Generator to build custom contact forms and embed them in your website — without writing a single line of code.

This PHP script will allow you to upload a JPG image, resize it if required then crop it to given height and width.