problem with server loop push php

Pedro Alves · February 2, 2017

I'm not getting by code to work The result should be 125
150
175
And this always gives this 125 125 125 125

how i solve the problem
Follow the code

server.php

<?php

require_once ('configurations/config.php');

// arquivo cujo conteúdo será enviado ao cliente

//$dataFileName = 'data.txt';


$timestart=time();
$PDO = new PDO('mysql:host=localhost;dbname=game', 'root','');

if(isset($_POST ['timestamp'])){

    $timestamp=$_POST [ 'timestamp' ];

}
else {
    $tempo=$PDO->prepare("SELECT NOW() as now");
    $tempo->execute();
    $row=$tempo->fetchObject();
    $timestamp=$row->now;
}
$sql = $PDO->prepare("SELECT cidade.ouro,cidade.madeira,cidade.metal,cidade.pedra,cidade.energia, cidade.comida,cidade.petrolio FROM users INNER JOIN cidade ON users.cod_user=cidade.cod_user WHERE cidade.timestamp>'$timestamp'AND users.username='admin';");

 $newdata = false;
 $notificacoes=array();
 while (!$newdata &&(time()-$timestart)<20) {
     $sql->execute();
 while ($row=$sql->fetchAll(PDO::FETCH_ASSOC)) {

     $notificacoes=$row;
        $newdata=true;
 }  
 usleep(500000);  
 } 
 $tempo=$PDO->prepare("SELECT NOW() as now");
    $tempo->execute();
    $row=$tempo->fetchObject();
    $timestamp=$row->now;
    $data= array('notificacoes'=>$notificacoes,'timestamp'=>$timestamp);
    echo json_encode($data);
    exit();
?>

client.js

$(function(){
notificacoes();
});
function notificacoes(timestamp){
    var data={};
    var resultado=0;
            var soma=2;
            var valor=25;
    if(typeof timestamp!='undefined')
    data.timestamp=timestamp;
    $.post('server.php',data,function(res){
        for(i in res.notificacoes ){

            resultado=+res.notificacoes[i].ouro+valor;

            $('#response').append(resultado);
        }

        notificacoes(res.timestamp);
    },'json');

}

ola.php

<html>

	<head>

		<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>

		<script type="text/javascript" src="dist/js/client.js"></script>

	</head>

	<body>

		<h3>Conteúdo</h3>

		<div id="response" name="response"></div>

	
	</body>

</html>

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problem with server loop push php

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