How do I read configuration settings from Symfony2 config yml

Question

I have added a setting to my config yml file as such   app config      contact email  somebody gmail com           For the life of me  I can t figure out how to read it into a variable  I tried something like this in one of my controllers    recipient    this- gt container- gt getParameter  contact email      But I get an error saying      The parameter  contact email  must be   defined    I ve cleared my cache  I also looked everywhere on the Symfony2 reloaded site documentation  but I can t find out how to do this   Probably just too tired to figure this out now  Can anyone help with this

User · Answer

I have to add to the answer of douglas  you can access the global config  but symfony translates some parameters  for example     config yml      framework      session          domain   localhost        are   this- gt container- gt parameters  session storage options    domain      You can use var dump to search an specified key or value

User · Answer

While the solution of moving the contact email to parameters yml is easy  as proposed in other answers  that can easily clutter your parameters file if you deal with many bundles or if you deal with nested blocks of configuration    First  I ll answer strictly the question  Later  I ll give an approach for getting those configs from services without ever passing via a common space as parameters    FIRST APPROACH  Separated config block  getting it as a parameter  With an extension  more on extensions here  you can keep this easily  separated  into different blocks in the config yml and then inject that as a parameter gettable from the controller   Inside your Extension class inside the DependencyInjection directory write this   class MyNiceProjectExtension extends Extension       public function load  array  configs  ContainerBuilder  container                    The next 2 lines are pretty common to all Extension templates           configuration   new Configuration             processedConfig    this- gt processConfiguration   configuration   configs                This is the KEY TO YOUR ANSWER          container- gt setParameter   my nice project contact email    processedConfig   contact email                   Other stuff like loading services yml         Then in your config yml  config dev yml and so you can set  my nice project      contact email  someone example com   To be able to process that config yml inside your MyNiceBundleExtension you ll also need a Configuration class in the same namespace   class Configuration implements ConfigurationInterface       public function getConfigTreeBuilder                  treeBuilder   new TreeBuilder             rootNode    treeBuilder- gt root   my nice project               rootNode- gt children  - gt scalarNode   contact email   - gt end             return  treeBuilder            Then you can get the config from your controller  as you desired in your original question  but keeping the parameters yml clean  and setting it in the config yml in separated sections    recipient    this- gt container- gt getParameter   my nice project contact email       SECOND APPROACH  Separated config block  injecting the config into a service  For readers looking for something similar but for getting the config from a service  there is even a nicer way that never clutters the  paramaters  common space and does even not need the container to be passed to the service  passing the whole container is practice to avoid    This trick above still  injects  into the parameters space your config   Nevertheless  after loading your definition of the service  you could add a method-call like for example setConfig   that injects that block only to the service   For example  in the Extension class   class MyNiceProjectExtension extends Extension       public function load  array  configs  ContainerBuilder  container                  configuration   new Configuration             processedConfig    this- gt processConfiguration   configuration   configs                Do not add a paramater now  just continue reading the services           loader   new YamlFileLoader   container  new FileLocator    DIR          Resources config                loader- gt load   services yml                 Once the services definition are read  get your service and add a method call to setConfig            sillyServiceDefintion    container- gt getDefinition   my niceproject sillymanager              sillyServiceDefintion- gt addMethodCall   setConfig   array   processedConfig   contact email                   Then in your services yml you define your service as usual  without any absolute change   services      my niceproject sillymanager          class  My NiceProjectBundle Model SillyManager         arguments       And then in your SillyManager class  just add the method   class SillyManager       private  contact email       public function setConfig   newConfigContactEmail                  this- gt contact email    newConfigContactEmail            Note that this also works for arrays instead of scalar values  Imagine that you configure a rabbit queue and need host  user and password   my nice project      amqp          host  192 168 33 55         user  guest         password  guest   Of course you need to change your Tree  but then you can do    sillyServiceDefintion- gt addMethodCall   setConfig   array   processedConfig   amqp           and then in the service do   class SillyManager       private  host      private  user      private  password       public function setConfig   config                  this- gt host    config   host              this- gt user    config   user              this- gt password    config   password               Hope this helps

User · Answer

I learnt a easy way from code example of http   tutorial symblog co uk   1  notice the ZendeskBlueFormBundle and file location    myproject app config config yml  imports      -   resource  parameters yml       -   resource  security yml       -   resource   ZendeskBlueFormBundle Resources config config yml    framework    2  notice Zendesk BlueForm emails contact email and file location    myproject src Zendesk BlueFormBundle Resources config config yml  parameters        Zendesk contact email address     Zendesk BlueForm emails contact email  dunnleaddress gmail com   3  notice how i get it in  client and file location of controller    myproject src Zendesk BlueFormBundle Controller PageController php      public function blueFormAction  name   arg1   arg2   arg3  Request  request             client   new ZendeskAPI  this- gt container- gt getParameter  Zendesk BlueForm emails contact email

User · Answer

Rather than defining contact email within app config  define it in a parameters entry   parameters      contact email  somebody gmail com   You should find the call you are making within your controller now works

User · Answer

Like it was saying previously - you can access any parameters by using injection container and use its parameter property     Symfony - Working with Container Service Definitions  is a good article about it

User · Answer

In order to be able to expose some configuration parameters for your bundle you should consult the documentation for doing so  It s fairly easy to do     Here s the link  How to expose a Semantic Configuration for a Bundle

[symfony] How do I read configuration settings from Symfony2 config.yml?

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