Im not the best at writing regex, but this could be represented as
$filename = ereg_replace ("[^a-zA-Z0-9.-_]", "_", $filename);
Someone correct me if I am wrong (this is what im using to rename
uploaded files, seems to work).
-- Stewart
--- Erik Price <[EMAIL PROTECTED]> wrote:
>
> On Tuesday, February 26, 2002, at 01:34 PM, Chris Hewitt wrote:
>
> >> I am wondering if there is anywhere a list of characters which are
> not
> >> allowed in a unix file name.
> >>
> >> I gues somethin like ' or \ is not allowed, but what else?
> > My old "Teach Yourself Unix" book makes it:
> > !@#$%^&()[]'"?\|;<>`+- space tab backspace
> > though it says technically some could be used but might cause
> problems.
>
> As a general rule, filenames should only ever be composed of the
> following characters:
>
> letters (A-Z and a-z)
> numbers (0-9)
> underscorese (_)
> hyphens (-)
> dots (.)
>
> Surely there will be some disagreement with this, but it's our policy
>
> where I work to make certain that filenames can only be composed of
> these characters. I even have the CMS I'm designing set so that
> nonconformant filenames are not allowed, with a message explaining
> why.
> The characters to be especially careful to avoid are:
>
> forward-slashes (/)
> backslashes (\)
> quotes (')
> doublequotes (")
> colons (:)
> spaces ( )
>
> The slashes are usually filesystem hierarchic delimiters on Windows
> and
> Unix, as is the colon on pre-OS 9 Mac filesystems. Quotes and
> doublequotes are usually used to escape command line strings, so they
>
> can cause confusion (note that this includes singlequotes used as
> apostrophes, like "John'spicture.jpg"). It's not that you can't use
> quotes, but it forces the person manipulating them to be very careful
>
> about how they refer to the filename. Likewise, spaces need to be
> escaped, so they're a bad idea.
>
> This is just my opinion, but I'm sure others will agree.
>
> Erik
>
>
>
> ----
>
> Erik Price
> Web Developer Temp
> Media Lab, H.H. Brown
> [EMAIL PROTECTED]
>
>
> --
> PHP General Mailing List (http://www.php.net/)
> To unsubscribe, visit: http://www.php.net/unsub.php
>
__________________________________________________
Do You Yahoo!?
Yahoo! Greetings - Send FREE e-cards for every occasion!
http://greetings.yahoo.com
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
