RE: Variables within functions, out?

> -----Original Message----- > From: James, Yz [mailto:liljim@btconnect.com] > Sent: 01 February 2001 22:22 > To: php-general@lists.php.net > Subject: Variables within functions, out? > > > Hey guys. Can I firstly say, thanks to all of you who helped > me out with my > last question about importing MS Access databases into > MySQL... It helped > tons! > > However, I have another question. > > Firstly, I've strayed away from writing many of my own > functions, because > they give me the fear. But the code on the pages I am > creating has forced > me to wake up... I really sould think about cutting back on code. > > SO, anyway, to cut to the chase, my question is this: If I write a > function, which performs checks and assigns variable based on > these checks, > how do I get the assigned variables from within the function? > For example > (this is more than likely VERY wrong), something like this: > > global.inc: > > <? > > function CheckBirthday() { > global $year,$month,$day; > > if (($day) && ($month) && ($year)) { > if (checkdate($day,$month,$year) { > $birthday = "$year/$month/$day"; > } else { > $birthday = "Invalid"; > } > } > } > > ?> > the correct use of a function would be ... function CheckBirthday($year,$month,$day) { if (($day) && ($month) && ($year)) { if (checkdate($day,$month,$year) { $birthday = "$year/$month/$day"; } else { $birthday = "Invalid"; }; }; return $birthday; } this function can now be used by a calling program without the callong program needing to know anything about it's internal working. > File that would update / insert information to a MySQL database: > > <? > > // Connection details here > > require("global.inc"); > > CheckBirthday(); > > $sql = "UPDATE MyTable > SET > birthday = \"$birthday\" > WHERE id = \"$id\" > "; > > // etc > > ?> > > Even when I KNOW that I have included correct values, the > $birthday variable > never shows up outside the function. It's probably something > simple I'm > missing, as in most cases ;) > > Thanks for your patience, > > James. > > > Tim Ward Senior Systems Engineer Please refer to the following disclaimer in respect of this message: http://www.stivesdirect.com/e-mail-disclaimer.html