Do something after submit the form at hook_form_alter [closed]

Question

I want to do something after I submit the node. How can I do that?

I use hook_form_form_id_alter(),but I dont know how to use callback function called after the user submit the form

function mymodule_form_node_form_alter(&$form,&$form_state,$form_id)
{
     if($form['#node']->type=="my_content_type")
     {
          $form['actions']['submit']['#submit'][]=my_callback_function;
     }
}

function my_callback_function($form,$form_state)
{
     //my code here!!
     //execute after the user submit the node form
     //and then redirect user to another place,after executing the code above

}

it doesn't work! and I don't know why? Please tell me how can I do that?

Answer 1

Sorry about that! My problem is fixed.

the code belowed is the anwser

function mymodule_form_node_form_alter(&$form,&$form_state,$form_id)
{
     if($form['#node']->type=="my_content_type")
     {
          $form['actions']['submit']['#submit'][]='my_callback_function';
     }
}

function my_callback_function($form, &$form_state)
{
     //my code here!!
     //execute after the user submit the node form
     //and then redirect user to another place,after executing the code above

}

[Edit] For me, the callback would not fire unless form_state was declared as &$form_state (pass by reference)

Answer 2

For other that are struggling with a similar issue. You could use rules if you need to redirect after form submission. Rules can react on form events, and you can easily attach the actions you want to it.