IF a == true OR b == true statement

Question

I can't find a way to have TWIG interpret the following conditional statement:

{% if a == true or b == true %}
do stuff
{% endif %}

Am I missing something or it's not possible?

And operator: ` {% if a and b %} ... {% endif %} – Muhammad Shahzad Jun 15 '17 at 16:52 — Muhammad Shahzad, Jun 15 '17 at 16:52

score 168 · Accepted Answer · answered Nov 30 '11 at 14:45

168

You can do it that simple:

{% if (a or b) %}
    ...
{% endif %}

answered Nov 30 '11 at 14:45

Andreu Ramos

38

The "or" also needs to be lowercase - it seems twig is case sensitive. – Shane Jun 14 '13 at 13:43
3

To negate this for multiples: {% if not (a or b or c) %} ... {% endif %} – JimB814 Jan 09 '17 at 17:34
No need for parentheses. – Fabien Snauwaert Aug 09 '19 at 10:03

Tim · Answer 2 · 2017-10-16T06:29:20.527

36

Comparison expressions should each be in their own brackets:

{% if (a == 'foo') or (b == 'bar') %}
    ...
{% endif %}

Alternative if you are inspecting a single variable and a number of possible values:

{% if a in ['foo', 'bar', 'qux'] %}
    ...
{% endif %}

edited Oct 16 '17 at 06:29

answered Sep 04 '16 at 17:29

Tim

not necessarily, according to Twig's official documentation https://twig.symfony.com/doc/2.x/tags/if.html – Luciano Sep 01 '17 at 13:21
1

[Correct](https://twigfiddle.com/vwy6vu). I had problems in Drupal 8 and had to wrapping the expressions in brackets solved it. – Tim Sep 01 '17 at 16:31
@Tim is there a way to abbreviate the following? `{% if (kind == '01') or (kind == '02') or (kind == '03') or (kind == '04') or (kind == '05') %}` – neoDev Oct 14 '17 at 00:38
2

Use an `in` statement: `{% if kind in ['01', '02'] %} ...`. [Twigfiddle](https://twigfiddle.com/gwktx5). – Tim Oct 16 '17 at 06:27

2 Answers2