How can I pass more than one point to google maps in this while?

I wanted to mark all points where the approximate distance is less than 25 km, but it does not even show the first point that is the closest (4km), it shows the last point (18km). Here's what comes from my bank:

Array ( [0] => -22.356472 [latitude] => -22.356472 [1] => -47.361216 [longitude] => -47.361216 ) 0    
Array ( [0] => -23.479701 [latitude] => -23.479701 [1] => -47.447751 [longitude] => -47.447751 ) 125    
Array ( [0] => -23.479701 [latitude] => -23.479701 [1] => -47.447751 [longitude] => -47.447751 ) 125    
Array ( [0] => -23.479701 [latitude] => -23.479701 [1] => -47.447751 [longitude] => -47.447751 ) Distância 125    
Array ( [0] => -22.384003 [latitude] => -22.384003 [1] => -47.378910 [longitude] => -47.378910 ) Distância 4    
Array ( [0] => -22.906058 [latitude] => -22.906058 [1] => -47.063822 [longitude] => -47.063822 ) Distância 68    
Array ( [0] => -22.483987 [latitude] => -22.483987 [1] => -47.449943 [longitude] => -47.449943 ) Distância 17    
Array ( [0] => -22.368794 [latitude] => -22.368794 [1] => -47.533523 [longitude] => -47.533523 ) Distância 18

.php:

<?php
    include('dcclinicas/include/conexao.php');
    $idUsuario = '7';

    $lat = $link->query("SELECT latitude FROM usuarios WHERE id ='$idUsuario'")->fetch_assoc();
    $long = $link->query("SELECT longitude FROM usuarios WHERE id = '$idUsuario'")->fetch_assoc();          

    $dados = $link->query("SELECT latitude, longitude FROM usuarios");

    while($cont = mysqli_fetch_array($dados)){
        $distancia = distanciaPontos($lat['latitude'],$long['longitude'], $cont['latitude'], $cont['longitude']);
        echo "<br>";

        if($distancia <= '25'){
              $latDestino = $cont['latitude'];
              $longDestino = $cont['longitude'];    

              echo '<script type = "text/javascript">  
                      function loadMap() {
                        if (GBrowserIsCompatible()) {
                          var map = new GMap2(document.getElementById("map"));
                          map.setCenter(new GLatLng('.$lat['latitude'].', '.$long['longitude'].'), 6);
                          var markerAtual = new GMarker(new GLatLng('.$lat['latitude'].','.$long['longitude'].'));
                          var marker = new GMarker(new GLatLng('.$latDestino.', '.$longDestino.'));

                          map.addOverlay(markerAtual);
                          map.addOverlay(marker);
                        }
                      }
                    </script>';
        }
        $cont++;
        print_r($cont);
        print_r(" ".$distancia);

    }