PHPLinks is yet another open source project that has been written with the help of the PHP scripting language and it is intended to be used with MySQL which in turn makes it ideally suitable for anyone wishing to run a very efficient Link Farm that has all the search capabilities that you want, and so it would not be wrong to call PHPLinks to be a simulated kind of search engine.
Being free, you don't need to pay even a dime to use it and the best part is that PHPLinks is full of features that include the entire searching capabilities that you would expect from more popular search engines, and it also has recursive multi-level site categorization as well as offers site reviews and even full referrer tracking feature, as too site ratings and category searching. In addition, PHPLinks also has search term tracking and link validations as well as related categories, which shows how much power and punch is packed into this free to use resource.
Most users who have tried out PHPLinks have come away feeling very satisfied and especially pleasing are the fact that you can easily customize PHPLinks and create a layout that appeals the most to you.
In order to use PHPLinks you may require having PHP4.x because PHPLinks uses some very cool features that are only available in PHP4. In addition, you will need a web server that can parse PHP scripting and also MySQL 3.22 or later. Other than that, if you are using PHPLinks version 2 or higher, you get some very great features such as related categories, site reviews and more.
With so many features and being free to use, there is certainly plenty of good reasons why you should try PHPLinks out, and in fact, there are many satisfied users who will testify as to its usefulness as well.