Problem with $_GET-Snippet and Empty-Value

6 Posts

vivapolonium Reply #1, 13 years, 1 month ago

Hey Folks,

I have following problem:

In one of my resources I want to check if a specified GET-Parameter exists and if so, modify the output. The Snippet I created to get the GET-Parameter is

$return = 'empty';

if(isset($_GET[$field])){ $return = $_GET[$field];}

return $return;

The resource call is

[[[[!GET? &field=`year`]]:is=`empty`then=`foo`:else=`bar`]]

If I set the GET-Parameter, it prints "bar", but if not, it prints nothing.
Does anybody got an idea why not?

I appreciate every clue

Regards

24,544 Posts

BobRay Reply #2, 13 years, 1 month ago

Try this one-line version:

return isset($_GET[$field]) && (!empty($_GET[$field]))? $_GET[$field] : 'empty';

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6 Posts

vivapolonium Reply #3, 13 years, 1 month ago

Hey Bob,

thanks for your reply! Unfortunatly that didn't work for me.
Any other suggestions?

Regards

788 Posts

breezer Reply #4, 13 years, 1 month ago

Is there a missing : before then=`` in your resource call?

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6 Posts

vivapolonium Reply #5, 13 years, 1 month ago

Hey breezer,

actually it was, but somehow it didn't changed anything. I'll paste my current code again:

GET-Snippet:

$return = '';
 
if(isset($_GET[$field]) && !empty($_GET[$field])){ $return = $_GET[$field];}
 
return $return;

Resource-Call:

[[+[[!GET? &field=`year`]]:is=``:then=`'foo'`:else=`'bar'`]]

but now i have a really strange behavior:

if i HAVE a GET-Parameter, it shows 'foo', when it actually shouldn't. when i dont have any get-parameter, it stays empty. See in action here: http://s400814763.online.de/index.php?id=24.

click at the top on the years (2011, 2012, 2013) etc, to set a get-prameter.

regards

6 Posts

vivapolonium Reply #6, 13 years, 1 month ago

Got it. Solution is to call the modifiers BEFORE passing the values, like this:

[[!GET:is=`empty`:then=`'foo'`:else=`'bar'`? &field=`year`]]

Thanks for your help!