How to get form values in Symfony2 controller

Question

I am using a login form on Symfony2 with the following controller code  public function loginAction Request  request         user   new SiteUser         form    this- gt createForm new LoginType     user         if   request- gt getMethod       POST              form- gt bindRequest  request            data    form- gt getValues               Need to do something with the data here            return  this- gt render  GDSiteBundle  header html twig   array  form    gt   form- gt createView          But I am getting the following warning      Warning  array replace recursive    function array-replace-recursive   Argument  1 is not an array in  vendor symfony src Symfony Component Form Form php line 593   500 Internal Server Error - ErrorException   Can someone help me understand whats incorrect  and how I can fix it  Thanks   Update  The twig file is something like this    lt div class  form  gt         form errors form          lt form action     path  site user login       method  POST     form enctype form     gt           lt div class  level1  gt                 form row form username                  lt a href  javascript void 0   id  inscription  gt    trans   Registration   endtrans    lt  a gt           lt  div gt           lt div class  level2  gt                 form row form pwd hash                  lt div class  forget pass  gt  lt a href     id  frgt  gt    trans   Forgot Password     endtrans    lt  a gt  lt  div gt           lt  div gt           lt input type  submit  class  submit  name  login  value  gt           lt div class  clr  gt  lt  div gt       lt  form gt   lt  div gt    Here is the function in the Form s Type  public function buildForm FormBuilder  builder  array  options         builder- gt add  username    text   array  label    gt   Username             builder- gt add  pwd hash   password   array  label    gt   Password            Here is the route   site user login      pattern     locale  login     defaults    controller  GDSiteBundle SiteUser login

User · Answer

I think that in order to get the request data  bound and validated by the form object  you must use this command     form- gt getViewData     form- gt getClientData       Deprecated since version 2 1  to be removed in 2 3

User · Answer

To get the data of a specific field    form- gt get  fieldName  - gt getData      Or for all the form data   form- gt getData      Link to docs  https   symfony com doc 2 7 forms html

User · Answer

If you have extra fields in the form that not defined in Entity    form- gt getData   doesn t work   one way could be this     request- gt get  form    foo      Or     form- gt get  foo  - gt getData

User · Answer

In Symfony    2 3  you can get the value of single fields with    var    form- gt get  yourformfieldname  - gt getData      On the other hand  you can use    data    form- gt getData      BUT this would get you two different things    the entity with values populated by the form  if your form have the data-class option enabled  so it s binded to an entity   this will exclude any field with the  mapping    gt  false option otherwise  an array with all the form s fields

User · Answer

In Symfony forms  there are two different types of transformers and three different types of underlying data   In any form  the three different types of data are   Model data This is the data in the format used in your application  e g  an Issue object   If you call Form  getData   or Form  setData    you re dealing with the  quot model quot  data   Norm Data This is a normalized version of your data and is commonly the same as your  quot model quot  data  though not in our example   It s not commonly used directly   View Data This is the format that s used to fill in the form fields themselves  It s also the format in which the user will submit the data  When you call Form  submit  data   the  data is in the  quot view quot  data format    The two different types of transformers help convert to and from each of these types of data   Model transformers  transform     quot model data quot    gt   quot norm data quot  reverseTransform     quot norm data quot    gt   quot model data quot   View transformers  transform     quot norm data quot    gt   quot view data quot  reverseTransform     quot view data quot    gt   quot norm data quot    Which transformer you need depends on your situation  To use the view transformer  call addViewTransformer     If you want to get all form data   form- gt getData     If you are after a specific form field  for example first name    form- gt get  first name  - gt getData

User · Answer

None of the above worked for me  This works for me    username    form  username  - gt getData     password    form  password  - gt getData      I hope it helps

User · Answer

If you re using Symfony 2 security management  you don t need to get posted values  you only need to manage form template  see documentation    If you aren t using Symfony 2 security management  I advise you strongly to use it  If you don t want to or if you can t  can you give us the LoginType s sources

User · Answer

private function getFormDataArray  form         data           foreach    form as  key   gt   value             data  key     value- gt getData              return  data

User · Answer

I got it working by this   if   request- gt getMethod       POST          username    request- gt request- gt get  username         password    request- gt request- gt get  password            Do something with the post data     You need to have the Request  request as a parameter in the function too  Hope this helps

User · Answer

Simply     data    form- gt getData

User · Answer

For not mapped form fields I use  form- get  inputName  - getViewData

User · Answer

In Symfony 2   to be more specific  the 2 3 version   you can get a data of an field by   var    form- gt get  yourformfieldname  - gt getData      or you can get all data sent   data    form- gt getData      where   data  is an array containing your form fields  values

User · Answer

If Symfony 4 or 5  juste use this code  Where name is the name of your field     request- gt request- gt get  name

[forms] How to get form values in Symfony2 controller

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