How to Prevent Delete of Master Record If Child Record Exist in PHP

Submitted by mohammed shafraz on
Hi everyone, In this tutorial will see how to prevent delete from a parent/master record if data exist on another or related table. For this example, I have used programme and course table to prevent deletion of data in programme table, if programme name is available on course table. In this case, I have map the one-to-many relationship between programme table and course table. Here is the DEMO

MLM - Multilevel Marketing System in PHP

Submitted by Torrahclef on
About MLM - Multilevel Marketing System - top Our "MLM" software is for multi-levels Business, it's perfect for all MLM businesses that want to administrate their users and give the opportunity to each user to have a virtual wallet. You can also have a referral & 1:1 Pair Binary Matching system and each user can earn commissions. Every multi-level business needs to have more control over each user

Expression Parser and Evaluator

Submitted by nostradamus1566 on
Jonathan Wood Of BlackBelt Coder wrote an expression parser / evaluator in C#. It is available on his website to download for free. http://www.blackbeltcoder.com/ I found the expression parser / evaluator interesting, because it is a very good example of advanced programming, so I decided to convert the source code to Visual Basic.Net, in order to learn more about programming in that language.