Twig - Trying to split an array element

Question

Im looping over an array of objects, and then trying to split one of the elements, in this case I want to split the postcode on the space. Ie. 'AB1 1AB' should just be 'AB1' .

{% for result in resultset %}
            {{ result.postcode|split(' ') }}
    {% endfor %}

Throws me an 'array to string error'

Trying just:

{{ result.postcode[0] }}

Throws me a 'impossible to access key [0] on a string varaible' error.

and just doing:

{{ result.postcode }}

gives me no error, with the postcode displayed as 'AB1 1AB'

Why does Twig think the string is an array when I try to split it?

Dani Sancas · Accepted Answer · 2014-02-26 11:00:46Z

4

From the official doc:

The split filter splits a string by the given delimiter and returns a list of strings:

{{ "one,two,three"|split(',') }}
{# returns ['one', 'two', 'three'] #}

So, taking your code, you could do something like:

{% for result in resultset %}
    {{ set myArray = result.postcode|split(' ') }}
    {{ myArray[0] }} {# Will output "AB1" #}
{% endfor %}

Source: TWIG Split filter

answered Feb 26, 2014 at 11:00

Dani Sancas

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3 Comments

Kiksy Over a year ago

I just figured this out myself (14 seconds after you posted this) Always the way. :) While this works, I don't really understand why. How is result.postcode considered an array, when it can be outputted as a string?

Dani Sancas Over a year ago

result.postcode is a string. But if you split it, the returned object is a list of string. So, if you take that into a variable (like myArray) you'll be able to display all the array values (the result of the split), which are myArray[0] => "AB1" and myArray[1] => "1AB". I hope I've helped you :)

Kiksy Over a year ago

Thanks for your help. From the Twig docs: Internally, Twig uses the PHP explode which - from the PHP docs - Returns an array of strings , not a list of strings. Confusing! There we go though.

Vlad Schnakovszki · Accepted Answer · 2014-08-26 09:07:40Z

1

It's an old question but the real problem is that you asked Twig to display the result of your split using a {{...}} block. You should use the {%...%} block and set tag, as explained in the documentation.

If you only want to display some part, you can use either split with [first][2] filter or slice.

edited Aug 26, 2014 at 9:07

Vlad Schnakovszki

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answered Aug 26, 2014 at 8:30

Particule42

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