Symfony2: how to read parameters array in config.yml

Question

my parameters.yml file has:

parameters:
     title:
          subtitle: value

i want to pass the value to a service in config.yml

my_service:
        class: the_class
        arguments: [ %title.subtitle%] //didn't work
        arguments: [ %title['subtitle']%] //didn't work

how can i do this?

Have you tried to define title as an hashmap like title: {value:'someValue', subtitle:'another value'} ? By the way, parameter references have to be quoted. arguments: ['%title%'] see documentation — Stphane
– Stphane, Commented Apr 26, 2016 at 12:27
Possible duplicate of Symfony2: Reference string or an array in config yaml — Stphane
– Stphane, Commented Apr 26, 2016 at 12:31

Andrew Moore · Accepted Answer · 2013-11-12 04:28:07Z

16

Symfony2 doesn't support reading individual elements on a parameter array using the % notation. What you are doing is not possible out of the box.

The only way to do that would be to create your own Symfony\Component\DependencyInjection\ParameterBag\ParameterBag which would support fetching an array item.

answered Nov 12, 2013 at 4:28

Andrew Moore

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user725408 · Accepted Answer · 2015-09-06 09:07:23Z

15

The % notation doesn't work but it can be accomplished the following way:

my_service:
    class: the_class
    arguments: ["@=container.getParameter('title')['subtitle']"]

It works at least for symfony 2.7.3

More info about the expression language can be found in the cookbook: http://symfony.com/doc/current/book/service_container.html#using-the-expression-language

answered Sep 6, 2015 at 9:07

user725408

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2 Comments

nbro Over a year ago

Where did you find this syntax "@=container.getParameter('title')['subtitle']"?

user725408 Over a year ago

check the doc symfony.com/doc/2.7/service_container/expression_language.html

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