CODEWITHSUNDEEP
symfonytwig
user2143356
user2143356

Reputation: 5597

Twig (Symfony2) - replace function - replacing from variables - is it possible? (part completed code)

I'm close but nothing seems to work:

{% set a %}abc{% endset %}

{% set b %}123{% endset %}

{{ "test_abc123_xyz"|replace({ '{{ a }}{{ b }}': '' }) }}

It should be obvious what I'm trying to do as I think the only part above that is wrong is this bit:

'{{ a }}{{ b }}'

...but I can't get it right (I want to use the value of a and b together and replace it).

The result of above if working would be:

test__xyz

Upvotes: 2

Views: 2051

Answers (1)

AdrienBrault
AdrienBrault

Reputation: 7745

When you use '{{ a }}{{ b }}', it is nothing but a simple string to twig:

{{ '{{ a }}{{ b }}' }}

would just output:

{{ a }}{{ b }}

Then, if you want to use expression as keys in twig, you need to put them in parentheses:

{% set name = 'Adrien' %}
{% set hash = {(name): 'hello', name: 'hi'} %}

{% for key, value in hash %}
    {{ key }} => {{ value }}
{% endfor %}

would output:

Adrien => hello
name => hi

So you fixed solution is:

{% set a %}abc{% endset %}
{% set b %}123{% endset %}

{{ "test_abc123_xyz"|replace({ (a ~ b): '' }) }}

The ~ is the concatenation operator in twig.

Upvotes: 6

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