[dev] ctype functions

[Eric Rostetter]

Quoting Marko Djukic <marko at oblo.com>:

> according to the "editor's note" on
> http://www.php.net/manual/en/ref.ctype.php
> ctypes should be prefered to regex, and some is_* functions.

Yes, but only in HEAD as ctypes are not available in most php versions
until at least 4.2.

> so, anyone know if therefore ctype_digit() should be used instead of
> is_int()?

No idea.

> hwo about instead of preg_match('/^[0-9]+$/', $somevar) ?

It should be faster, though I've not tested.  I also think it is more
clear and easier to read and code.  So I would tend to use it here
just for clarity.

For other characters, ctype_* functions tend to be multibyte safe, so is
also nice compared to more traditional routines that are not multibyte
safe.  Another win.

But, as I said, for BC we need to be careful about these, and only use
them in HEAD or in modules that require a new PHP version.

> marko

-- 
Eric Rostetter
The Department of Physics
The University of Texas at Austin

Why get even? Get odd!