Re: help with duplicate flag in string functions

Hi, you want to duplicate if you don't want the called procedure to touch the original variable, or if you declare it as a local in your procedure and don't pass it as a pointer. Fab. ----- Original Message ----- From: "Tony Leake" <tony@webwise-data.co.uk> To: <php-dev@lists.php.net> Sent: Thursday, July 25, 2002 2:05 PM Subject: [PHP-DEV] help with duplicate flag in string functions > Hi, > > I'm just starting out writing modules by reading api docs on zend.com > and reading source code of existing modules. > > Several functions (example:) > add_next_index_string(zval *array, char *str, int duplicate) > > have the int duplicate flag, the docs say, The flag duplicate specifies > whether the string contents have to be copied to Zend internal memory. > > but how do I know if the string should be copied to memory, in the > simple functions I'm writing it seams to make no difference whether I > set this to 1 or 0 but it must do something? > > Thanks for your time > Tony > > > -- > PHP Development Mailing List <http://www.php.net/> > To unsubscribe, visit: http://www.php.net/unsub.php > >