>> How many characters can a variable holds?
>From the manual:
>
> <http://www.php.net/manual/en/language.types.string.php>
>
> "It is no problem for a string to become very large. There is no
> practical bound to the size of strings imposed by PHP, so there is no
> reason at all to worry about long strings."

Of course, there are some limits regarding the memory usage of the process,
but I guess that wasn't the question.

Anze