Another similar way, using an array (very simple to
add tasks):
$tasks = array('ShowVersion','GetData','CreateImage');
if (@in_array($_REQUEST['Task'], $tasks)) {
// add some error checking here (function_exists())
$$Task();
} else {
// maybe run a default task here
print "unknown task";
}
Am using @ in case 'Task' doesn't exist at all, so no
error will be seen (undefined variables create E_NOTICE
level errors). Although you may want to check this before
Task even reaches in_array(), with empty(). See also:
http://www.php.net/error_reporting
$$Task() is a variable function:
http://uk.php.net/manual/functions.variable-functions.php
And $_REQUEST is a PHP predefined/reserved variable that
contains a mix of Get, Post and Cookie data. This may or
may not be appropriate here:
http://au.phpz.net/manual/language.variables.predefined.php
On a sidenote (picky), consider making variables all
lowercase. Also when printing a single var, no need to
surround it with quotes. print $foo.
Regards,
Philip Olson
On Fri, 31 May 2002, Christopher J. Crane wrote:
> I like this piece of code. In fact, I convert all my scripts that use the
> older If/Else code. What would happen if the "break; " wasn't used. Would
> it just continue through the rest of the function to find another match???
>
> "Miguel Cruz" <[EMAIL PROTECTED]> wrote in message
> [EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> > On Thu, 30 May 2002, Crane, Christopher wrote:
> > > if ($Task == "ShowVersion") { function ShowVersion(); }
> > > elseif ($Task == "GetData") { function GetData(); print "$DataOutput"; }
> > > elseif ($Task == "CreateImage") { function CreateImage(); }
> > > else { print "Incorrect Variable or no Variable Supplies<br>"; }
> >
> > if (isset($Task))
> > {
> > switch($Task)
> > {
> > case 'ShowVersion':
> > ShowVersion();
> > break;
> > case 'GetData':
> > GetData;
> > print $DataOutput;
> > break;
> > case 'CreateImage':
> > CreateImage();
> > break;
> > default:
> > print 'Unknown function';
> > }
> > } else {
> > print 'No function supplied';
> > }
> >
> >
>
>
>
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