ctype_alnum

(PHP 4 >= 4.0.4)

ctype_alnum -- Check for alphanumeric character(s)

Description

bool ctype_alnum (string c)

Warning

This function is EXPERIMENTAL. That means, that the behaviour of this function, this function name, in concreto ANYTHING documented here can change in a future release of PHP WITHOUT NOTICE. Be warned, and use this function at your own risk.

See also setlocale().