Posted by Al on 02/03/06 02:02

joe wrote:
> I have a system where include files puts generated HTML into a variable
> ( $output ).
>
> In one of the pages I have a function that executes SQL queries and
> return nice arrays.
>
> The command to abort an included script is 'return' - but not if you're
> within a function. Then 'return' simply aborts that function.
>
> If the query should fail for some reason, I'd like to overwrite $output
> with a nice err. msg. and then abort execution of the included script
> and return to the main script. But can that be done from within a
> function ?
>
> TIA
> ------
>
> Aceb.

In my tests this works as expected, but why not make sure by having the
included file contain a function? Well I know this is awful practise
and might not actually be viable with what you have but if it's just
changing one variable do something like this:

main file:

<?php

echo outputstuff();

function outputstuff() {
include ("include.php");
$output = includefile_function();

echo "still running!";
return $output;
}

?>


and in include.php:

<?php

function includefile_function() {
$error = false;
$HTML = "";

// do normal stuff
if ($error) return "Error!";

// do more stuff
if ($error) return "Error!";

// whatever

return $HTML;
}

?>


That should work, right?



My test was:

main file:

<?php

echo outputstuff();

function outputstuff() {
$output = "this'll be overwritten";
include ("include.php");

echo "still running!";
return $output;
}

?>

and in include.php:

<?php

$error = false;
$HTML = "";

$HTML = "1";
if ($error) { $output = "Error!"; return; }

$HTML = "2";
if ($error) { $output = "Error!"; return; }

// whatever
$output = $HTML;

?>

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