Bill Management System

Finally, I've completed my first commercial software. It takes around four months to complete (off course I didn’t worked every day). I used PHP, jQuery, jQueryUI, and MySQL. The software includes all the basic functionality of a CRUD system

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Displaying PHP Errors on LAMP

By default the LAMP server doesn't display any error if there are errors in your php file. It just shows a blank page. That means you cannot see in which line the error is occurred. Hopefully, you can enable the error display option easily...

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Left Recursion Elimination

In the formal language theory of computer science, left recursion is a special case of recursion where a string is recognized as part of a language by the fact that it decomposes into a string from that same language (on the left) and a suffix (on the right). For instance, 1+2+3 can be recognized as a sum because it can be broken into 1+2, also a sum, and +3, a suitable suffix

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Lexical Analyzer

I'm doing compiler course in my current semester (Fall' 10). The programs I'm doing for the lab classes were not fully optimized and in fact not very efficient too. For example, I've created a Lexical Analyzer in C++, where no error detection...

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