automatically add some tabs to the beginning of my text which is getting from the database

[eluser]杨帅[/eluser]
the text from form----->post to a controller----->insert into database----->query in another controller----->pass through the second parameter of loadview function----->in another view, i echo it out, but found it was add some tabs at the beginning of the text. i donno which step cause this, anyone can solve this problem? great thanks.
another question, how can i remove these tabs? i use ltrim() to remove it ,but failed, i just donno what is the second parameter, i tried '\t' and '\t.', both failed.