Use loop index number in a Twig variable

Question

Let's say I have 5 Craft fields named "item1" thru "item5."

Instead of writing out each variable...

{{ entry.item1 }}
{{ entry.item2 }}
{{ entry.item3 }}
{{ entry.item4 }}
{{ entry.item5 }}

How can I create a loop to do this for me?

I've tried this...

{% for i is 1..5 %}

    {{ entry.item ~ loop.index }}

{% endfor %}

But it returns the error:

Craft\EntryModel and its behaviors do not have a method or closure named "item".

Answer 1

I found the answer in the Twig documentation: http://twig.sensiolabs.org/doc/templates.html#variables

You can use a dot (.) to access attributes of a variable (methods or properties of a PHP object, or items of a PHP array), or the so-called "subscript" syntax ([]):

{{ foo.bar }}
{{ foo['bar'] }}

When using the subscript syntax, you can concatenate the loop.index like so:

{% for i is 1..5 %}

    {{ entry['item' ~ loop.index] }}

{% endfor %}

Or even simpler, use the i variable from the for loop.

{% for i is 1..5 %}

    {{ entry['item' ~ i] }}

{% endfor %}