(PHP 4 >= 4.2.0, PHP 5)

is_nan -- Finds whether a value is not a number


bool is_nan ( float val)

Returns TRUE if val is 'not a number', like the result of acos(1.01).

See also is_finite() and is_infinite().

Sites of interest: Web Hosting : Reseller Hosting : Website Hosting : HTML Editor : Web Design Templates : Free Web Hosting : ASP code examples : PHP & MySQL Code Examples
  Copyright 2004 Evrsoft Developer Network. Privacy policy - Link to Us

Contact Evrsoft