Errors of fgetcsv()

[Anon]

I manually tried to @!#$ up a CSV file by removing some , commas.

This code:

while ( $data = fgetcsv($csv,1000) )

Doesn't raise an error.
It says in the PHP manual that
"fgetcsv() returns false on error, including end of file"

What kind of errors??

I try this:

while ( $data = fgetcsv($csv,1000) )
if (!$data)
print "@!#$!"

But it never happens!
What does fgetcsv() consider an error??