oh!
Well, for future keep in mind taht you shud always, do the same while storing it in tables.
Can you see the entire data when you are selecting in the database itself ie using a mysql client or telnet?
is it visisble in the tables in database?
if, yes then try and find till what 'point'you are getting it in php and then find a way to get the rest, you will have to use some tricks i guess..
other than that ,i cant say anything till i see what is causing the problem!
namaste