ubuntu php eclipse noob question

Hi I am new to php eclipse and I have a question about my eclipse interface..

According to the pictures I saw on the internet, the keyword for php will be colored (mysql_connect, echo...etc). However, every words in my php file are plain black. There are no colored keywor开发者_开发问答d. I am sure my file is saved as .php. How would i solve this problem. Thanks for the help....

Upadte:

I installed my eclipse from my software center. I guess that's not the php version. I removed it and tried to download the all-in-one php package. When I unzip and clicked the eclipse file, it said need jdk installation. After I installed my jdk and fired up the eclipse, I can see the php eclipse title in my eclipse, but the keywords are still black....any ideas how to solve this? Thanks

You have to install PDT plugin for eclipse

You might want to install Aptana (Which is Eclipse based) with the PHP Plugin