Netbeans, another IDE for coder

Its tutorial to use different programming language can be found here.
http://www.netbeans.org/kb/trails/php.html
Download link is here

One of my unknown function known from Mahmud Hasan

I was reading mahmud hasan blog and found a unknown function called GROUP_CONCAT().

“GROUP_CONCAT() function is used to concatenate column values into a single string. It is very useful if you would otherwise perform a lookup of many row and then concatenate them on the client end.
For example if you query:

mysql> SELECT Language FROM CountryLanguage [...]