How to register, query and display data in the same request?

Question

I have a form where the user enters his data (name, experience, height and weight), the information is registered in the database, compared and is returned to the user the ideal board model according to his information, within a modal. All this is already done and working.

The problem is that, obviously, as the SELECT is already inside the code, as soon as the page is loaded the REQUEST in the bank is already done! And I have as return the last user who registered his information in the bank.

The user has to enter his data in the form, its data is registered in the database, the comparison is made and the return with the result is displayed in the SAME request.

So far, what have I done:

Here is done the SELECT. Comparison of data in the BD:

function BuscaAlgo($conexao){
$query = "SELECT  USU.usuario,
                 USU.nome,
                 USU.exp,
                 USU.altura,
                 USU.peso,
                 PRAN.exp_ref,
                 PRAN.altura_ref,
                 PRAN.peso_ref,
                 PRAN.tipo_prancha,
                 PRAN.tamanho_prancha, 
                 PRAN.meio_prancha, 
                 PRAN.litragem_prancha       
                  FROM DADOS_USUARIO AS USU 
                       INNER JOIN PRANCHA AS PRAN
                           on USU.exp = PRAN.exp_ref
                            WHERE USU.altura = PRAN.altura_ref
                              AND USU.peso = PRAN.peso_ref
                                ORDER BY USU.usuario DESC LIMIT 1"; 

  $resultado = mysqli_query($conexao,$query);

  $retorno = array();

  while($experiencia = mysqli_fetch_assoc($resultado)){
    $retorno[] = $experiencia;
  }
 return $resultado;
} 

Here displays the result of SELECT bank-made:

include "banco.php";    

$resultado = array();
$resultado = BuscaAlgo($conexao);

foreach($resultado as $valor){
  echo $valor['usuario']; print('.  .'); 
  echo $valor['nome']; print('.  .'); 
  echo $valor['exp']; print('.  .'); 
  echo $valor['altura']; print('.  .'); 
  echo $valor['peso']; print('.  .'); 
  print('///////');
  echo $valor['tipo_prancha']; print('.  .'); 
  echo $valor['tamanho_prancha']; print('.  .'); 
  echo $valor['meio_prancha']; print('.  .'); 
  echo $valor['litragem_prancha'];  
}

(Ignore the visual part. At this point, the goal is only to bring the same result)

How can I do that within the same request? What is the best way to do and how?