Re: control structure question

So refering back, i re-wrote the original example using the switch syntax... switch (true) { case doStep1(): case doStep2(): case doStep3(): error(); break; default: valid(); } Each case expressions is evaluated, until one of them evaluates to a value equal (==) to the switch expression (in this case a boolean error flag). The error() code will only be called if one of the doStep() evaluates to false. And the valid() code will only be evaluated if the switch reached the default, which means that none of the above check returned false I think for this example the switch syntax is more elegant than using a series of if() statements. Thanks, Javier

For steps and sequences, I always use switches. Most commonly associated with the "action" variable, it would look like this: switch($action) { default:

      // what to show if no variable exists, or is set to a value
      // that is not acceptable below

break; case "add_file":

      // what to do in the even that a file needs to be added
      // to the database.

break; case "remove_file":

      // what to do in the even that a file need sto be removed
      // from the database.

break; } Basically, whatever the value of $action, that is what section of code will execute. Hope that helps! Martin Clifford Homepage: http://www.completesource.net Developer's Forums: http://www.completesource.net/forums/

"Javier Montserat" <codareef@hotmail.com> 07/23/02 10:03AM >>>

is there a more programmatically elegant way of saying... $isError = ""; function main() {

    doStep1();

    if (!$isError) {
        doStep2();
    }

    if (!$isError) {
        doStep3();
    }
    // etc. etc.

} function doStep1() {

    if ($something) {
        $isError = 1;
    }

} function doStep2() {

    if ($something) {
        $isError = 1;
    }

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