please help me tool for codeigniter

[eluser]Unknown[/eluser]
I don't know tools to write code igniter. I 'm still used to zend framework to write code igniter but it's not untilities for every times to write a command. It's not show to me sometime I typer a word .....for examese I typed a word "do", it's not show for me "document" or doxyz... that word ?. do you know me ?. I must be remember comment sometimes I don't know check it at where because Words I typed wrong...

you can show me tool to write code igniter ?

thanks verry much/.