JSON或jQuery适用于localhost但不适用于实时服务器

Question

此登录用户代码适用于localhost，但不适用于实时服务器。 index.html会通过ajax将变量发布到checklogin.php，response可以是0或1。现在我也没有。密码错误或密码正确0或1未被退回。

的index.html

<script type="text/javascript">

 function check() {
      var    one = $('#username').val();
      var    two = $('#password').val();

    if(one == '' || two == ''){
        $('#stage').show().html("Please enter your username and password!");
           $('#stage').delay(2000).fadeOut();
    }

    else 

 $.post("checklogin.php", { 
    username    : one,
    password    : two
},function(data){

    if (data.response==1) 
    { 
        window.location = '/client/client_dashboard.php';  
    }
    else if (data.response==0) {
    $('#stage').show().html("Your username or password is incorrect!");
   }

   $('#stage').delay(2000).fadeOut();


},"json");


        } 

</script>

checklogin.php

<?php
include("connect.php");

$myusername = isset($_POST['username']) ? $_POST['username'] : false;
$mypassword = isset($_POST['password']) ? $_POST['password'] : false;

// username and password sent from form

// To protect MySQL injection (more detail about MySQL injection)
$myusername = stripslashes($myusername);
$mypassword = stripslashes($mypassword);
$myusername = mysql_real_escape_string($myusername);
$mypassword = mysql_real_escape_string($mypassword);


$sql="SELECT * FROM `client` WHERE username='$myusername' AND password='$mypassword'";
$result=mysqli_query($conn, $sql);

// Mysql_num_row is counting table row
$num=mysqli_num_rows($result);

// If result matched $myusername and $mypassword, table row must be 1 row



if($num==1){
session_start();
$_SESSION["myusername"] = $myusername;

    $response = 1;

}
else {
    $response = 0;

}

$display = array('response' => $response);
echo json_encode($display);


?>

我做了一些调试来测试mysql连接并选择带有固定数据的用户名和密码：

<?php
include("connect.php");
/* check connection */
if (mysqli_connect_errno()) {
    printf("Connect failed: %s\n", mysqli_connect_error());
    exit();
}

/* check if server is alive */
if (mysqli_ping($conn)) {
    printf ("Our connection is ok!\n");


    $sql="SELECT * FROM `client` WHERE username='sami' AND password='123'";
$result=mysqli_query($conn, $sql);

// Mysql_num_row is counting table row
$num=mysqli_num_rows($result);

// If result matched $myusername and $mypassword, table row must be 1 row



if($num==1){

// Register $myusername, $mypassword and redirect to file "login_success.php"
session_start();
$_SESSION["myusername"] = $myusername;

    echo "got data";

}
else {
    echo "no data";

}


} else {
    printf ("Error: %s\n", mysqli_error($link));
}

/* close connection */
mysqli_close($link);
?>

服务器给我这个输出：

Our connection is ok! got data

我尝试使用chrome进行调试：

更多细节：

所以我决定删除mysql用户名＆amp;密码选择看看发生了什么和奇怪我设法登录。我猜这些数据确实已发布。

$myusername = isset($_POST['username']) ? $_POST['username'] : false;
$mypassword = isset($_POST['password']) ? $_POST['password'] : false;

if($myusername != ''){

// Register $myusername, $mypassword and redirect to file "login_success.php"
session_start();
$_SESSION["myusername"] = $myusername;

    $response = 1;

}
else {
    $response = 0;

}

$display = array('response' => $response);
echo json_encode($display);

这可能是什么问题？