我不确定如何解决PHP中的以下错误。
<?php
include_once 'dbConnection.php';
$ref=@$_GET['q'];
$email = $_POST['uname'];
$password = $_POST['password'];
$email = stripslashes($email);
$email = addslashes($email);
$password = stripslashes($password);
$password = addslashes($password);
$result = mysqli_query($con,"SELECT email FROM admin WHERE email = '$email' and password = '$password'") or die('Error');
$count=mysqli_num_rows($result);
if($count==1){
session_start();
if(isset($_SESSION['email'])){
session_unset();}
$_SESSION["name"] = 'Admin';
$_SESSION["key"] ='123456';
$_SESSION["email"] = $email;
header("location:dash.php?q=0");
}
else header("location:$ref?w=Warning : Access denied");
?>
警告：session_start（）：无法发送会话cookie-/ storage / ssd2 / 422/5398422 / public_html中已由发送的标头（输出始于/storage/ssd2/422/5398422/public_html/dbConnection.php:6） /admin.php，第14行
警告：session_start（）：无法发送会话缓存限制器-已在/ storage / ssd2 / 422/5398422 / public_html中发送的标头（输出始于/storage/ssd2/422/5398422/public_html/dbConnection.php:6） /admin.php，第14行
警告：无法修改标头信息-已在/storage/ssd2/422/5398422/public_html/admin.php中发送的标头（输出始于/storage/ssd2/422/5398422/public_html/dbConnection.php:6）在第20行