Papan mesej pembangunan PHP papan mesej tutorial menerbitkan halaman PHP

<?php session_start(); header("content-type:text/html;charset=utf-8"); $name=$_POST['name']; $email=$_POST['email']; $content=$_POST['content']; $vcode=$_POST['vcode']; //if($name==''){ // echo "<script>alert('请输入你的姓名');location='" . $_SERVER['HTTP_REFERER'] . "'</script>"; // exit; //} //if($content==''){ // // echo "<script>alert('留言内容不能为空');location='" . $_SERVER['HTTP_REFERER'] . "'</script>"; // exit; // //} //if($vcode!=$_SESSION['VCODE']){ // // echo"<script>alert('你的验证码不正确，请重新输入');location='".$_SERVER['HTTP_REFERER']. "'</script>"; // exit; //} $conn=mysqli_connect('localhost','root','root','ressage'); mysqli_set_charset($conn,'utf8'); //设定字符集 if($conn){ $sql=mysqli_prepare($conn,"insert into ressage_user(name,email,content,ressage_time) VALUES (?,?,?,now())"); $param=mysqli_stmt_bind_param($sql,'sss',$name,$email,$content); $result=mysqli_stmt_execute($sql); if($result){ echo "<script>alert('留言成功');location.href='ressage.php';</script>"; }else{ echo"<script>alert('你的留言失败，请稍后重试');location.href='ressage.php';</script>"; exit; } }else{ die("数据库连接失败". mysqli_connect_error()); } ?>