XF 1.5 How do I determine the size of an array in a template?

[Stuart Wright]

I have a review with no Pros or Cons
https://www.avforums.com/review/datawind-ubisurfer-review.153#sectionAnchor24933
and the template is supposed to only display the Pros and Cons if there are any.

<xen:if is="{$content.pros} AND {$content.cons}">

yet the Pros and Cons are displayed resulting in the display of the headers and nothing else.
Should I change the conditional to test for the number of elements in the arrays?

 

[Paul B]

You can dump it to see what it contains.

{xen:helper dump, $content.pros}

You may need to use an exclusive condition or value rather than just checking for the presence of the param.

 

[Stuart Wright]

Thanks Paul, I'm getting

array(1) {
[0] => string(0) ""
}

I guess I need to test for that also.

 

[Paul B]

Yes, as it's not NULL, it's meeting the terms of the condition.

You can likely just edit the condition to add > 0 for both, although that would require both to be > 0 in order for that to evaluate.

 

[Chris D]

Ideally the back end code would be handling that specifically. The easiest way to do that is just run the array through array_filter (with no function argument) before it is saved and it will automatically strip out entries from the array which are "falsey".

 

[Stuart Wright]

Thanks, both.

 

[Stuart Wright]

This works

<xen:if is="{$content.pros.0}">

and I have to assume that the first item of the array contains something.