An RegExp will work but is not as fast as native functions, but you could use something like:
$len1 = strlen ( $input ); $len2 = strspn ( $input , "1234567890,." ); if ( $len1 == $len2 ) { echo 'yuuhooo'; } else { echo 'd\'oh'; } [...] > > From: "William Lovaton" <[EMAIL PROTECTED]> > > > > > Instead of doing a lot of casting, you can use is_numeric() to see if a > > > variable is a number or a numeric string. > > > > Yeah, but the OP wanted to be able to tell an integer from a real number > > from a string. is_numeric() is going to validate 5, 5.5, and 5.05E6, for > > example. > > well, an integer is a float too, the real problem is when you type 5.5 > in a variable that is expected to be integer. In this case is_numeric() > won't do the trick. > > May be using regexps ([0-9]) will be enough to check integer values but > I think it is a bit slower. It is always better to use native functions > instead of regexps where possible. [...] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php