Re: return

At 6:02 PM -0300 12/11/00, Martin A. Marques wrote:

On Monday 11 December 2000 17:51, Louis Aslett wrote: When you execute a return(), the function exits and returns to the point at which the function was called in your code. Sorry if the question was rather stupid, but I found code in www.zend.com with functions with returns and after that a break.

Do you mean something like this? function foo($bar) { if ($bar == 'zappa') { return 'frank'; } elseif ($bar == 'sinatra') { return 'Frank'; } elseif ($bar == 'valli') { return 'frankie'; } else { return; } } You can have as many return statements as you want; once the function hits a return statement, of course, any code after that in the function is not executed. You can even have NO return statement in a function definition; in that case, there is an implicit return just before the closing '}' in the function definition. Just as a matter of coding style, I like to only have one return statement in a function. It makes it easier for me to follow program flow while debugging --- and it's just the way I've always done it (with exceptions here & there). I would do the above like: function foo($bar) { if ($bar == 'zappa') { $rval = 'frank'; } elseif ($bar == 'sinatra') { $rval = 'Frank'; } elseif ($bar == 'valli') { $rval = 'frankie'; } return $rval; } -steve +--- "They've got a cherry pie there, that'll kill ya" ------------------+

| Steve Edberg                           University of California, Davis |
| sbedberg@ucdavis.edu                               Computer Consultant |
| http://aesric.ucdavis.edu/                  http://pgfsun.ucdavis.edu/ |

+-------------------------------------- FBI Special Agent Dale Cooper ---+