On Thursday 18 April 2002 23:25, Erik Price wrote: > I am writing a function that performs some actions. I would like to > return true if the actions succeed, or return an error message if the > actions fail. How should I go about it? The following code doesn't do > it, because the returned error message is interpreted as a boolean > "true" (I think that's what's happening): > > if (custom_function() == true) { > print "Custom Function succeeded!"; > } else { > print custom_function(); > } > > I would actually rather just have the error message generated by the > script that calls the function, but the function performs some logic > that determines what kind of error message to give. I was thinking of > having the function return "1" if succeeds, "2" if error code A, or "3" > if error code B, and then a switch statement could decide what to do in > the calling script -- but does this sound sloppy?
What I tend to do is define functions like so: function doo($dah, $dib, &$error) { ... ... if success { return TRUE; } else { $error = "You've committed a grave sin!"; return FALSE; } } Then call as: if (doo(...)) { echo "OK"; } else { echo "Error: $error"; } -- Jason Wong -> Gremlins Associates -> www.gremlins.com.hk Open Source Software Systems Integrators * Web Design & Hosting * Internet & Intranet Applications Development * /* Now I lay me down to sleep, I pray the Lord my soul to keep, If I should die before I wake, I'll cry in anguish, "Mistake!! Mistake!!" */ -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php