Question

我的db表中有3行但是当我用ajax询问我的数据时，我有6行。这怎么可能？

在前3个ajax调用中我有完整的db信息。在接下来的3个ajax调用中我有正确的信息，我在php for loop中要求

$db = new PDO('mysql:host=localhost;dbname=projectmobilewebappstest;charset=utf8', 'eclipse', 'eclipse');
$db->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);

$query = $db->prepare('SELECT * FROM poll');
$query->execute();

$result = $query -> fetchAll();

foreach( $result as $row ) {

     $result[] = array('poll' => $row['poll']
                    ,'Yes' => $row['Yes']);
}

echo json_encode($result);


var form =  $.ajax({
    url: "server.php/lijst",
    type: "post",

    dataType: "json",
    encode: true
})

form.done(function (response) {

   console.log(response[3].Yes)
   $("#mydata").html("");

   for(var i = 0; i < response.length;i++)
   {
        console.log(response[i])
        $("#mydata").append(response[4].poll);
        $("#mydata").append("</br>");
   }

Answer 1

我认为你在这里做了一些令人困惑的事情：

 foreach( $result as $row ) {

  $result[] = array('poll' => $row['poll']
                    ,'Yes' => $row['Yes']);

 }

Answer 2

这里有一个例子可能会帮助你

$id_user=$_POST['id_user'];
    $bdd = new PDO('mysql:host=localhost;dbname=ailyan', 'root', '');
     $req = $bdd->prepare('select  *  from event where id_user = ?');
    $req->execute(array($id_user));
    //$_SESSION['id']

       $response["events"] = array();

      while(  $donnees = $req->fetch()){
        $endroits = array();
        $endroits ['titre']=$donnees['titre'];
        $endroits ['date']=$donnees['date'];


        array_push($response["events"], $endroits);
       }

     print  json_encode($response);

其余的：

 $.ajax({
      type:"POST",
      url:"traitement/event/recuperer_livraison.php",
      data:{id_user:id_user},
      success:function(data){

       var obj = jQuery.parseJSON(data);

       jQuery.each(obj["events"], function(index, value) {

           console.log(value.titre);
           console.log(value.date);

  })

  }
});

PHP json对象给出了错误的答案

2 个答案: