post - PHP: using $_POST within a loop -

On a page I have a dynamically created form in which it has the element (note that for clarity I Left some stuff, examples: table and form element):

  $ getallusers = "select * Ft_users`"; $ Usersstmt = $ modx- & gt; Query ($ getallusers); While ($ line = $ userstat-> fetch (PDF :: FETCH_ASSOC)) {resonant "  ";}   
 On the Form Processing page, I am trying to retrieve values:  
  $ getallusers =" SELECT * $ Usersstmt = $ modx- & gt; Query ($ getallusers); while ($ line = $ userstat-> fetch (PDO :: FETCH_ASSOC)) {$ userpoints = trim ($ _ POST [ "User_ids"] [$ row [[user id]]];}   
 If I do  print_r ($ _ POST);  I have been sent to the form The array of data is available, so I get the forms that work properly. Part of the variable is converting data into:  
  $ userpoints = trim ($ _ POST ["user_ids"] [$ row [[user id]]]);  < / Pre> 
 Does anyone know the better way to do this?   
 
 
 In the first code block Change: -  
  While ($ rowuser = $ usersstmt-> Fetch (PDO: FETCH_ASSOC))   
 to  < Pre>  while ($ line = $ usersstmt-> Get (PDO :: FETCH_ASSOC))