die issues

Anon

I'm writing a page with a php-scripts surrounded by html.

The problem is, I need to stop processing one of the php scripts in the code without stopping parsing the entire file. When using die, the parsing stops after showing my die output. Ex:

<p>hello</p>
<?
if (!isset ($test)) {
die('error message');
}
code that should NOT be processed.
?>
<p>code that should be processed if dying</p>

Of course, it's a lot more complicated, but you get the idea.

Is there an easy way of accomplishing this? Grateful for all help...

[deleted]

Just use an IF statement like you did in the example.
Put the code that should be conditionally executed in an IF statement.

<?
if (isset($test))
{

do stuff

}
else
{

give warning (die message)

};
?>

Anon

I've thought about this... My problem is, with many conditions needed to be fulfilled for normal execution (several of the statements I showed), the code will in this way get extremely messy.

Do you know of any other way of solving this? Or is the if- statements the only solution?

lucidfx

This maybe a useful tid bit, you can use break;
to break out of loops. Maybe that could stop your data processing? I dont really understand the post, but this may prove useful.

[deleted]

What's messy about it?
You have to use an IF statement to be able to check for the conditions in the first place.

You just have to think in reverse:
You don't stop when a condition is not met, you don't start unless a condition is met.

Anon

Point taken... What I meant was that there is so much code which should be executed when the condition is met. But I get what you're saying - I'm rewriting the code now...

Thanx!

simon_belak

What about return?
if you use functons you can stop execution by returning. Since it is an error condition the best thing to return is false or 0 or perhaps eaven a special error class.

evenv

Interesting thought.. You mean that the command return will stop a function? And return a value/string?

[deleted]

I'll probably get flamed for posting this, but this is the perfect time for you to grab the manual and read up on functions and flow-operators.