<?php
if(isset($_POST['register-button']))
{
include 'dbh.inc.php';
error_reporting(0);
$uname = $_POST['username'];
$name = $_POST['name'];
$email = $_POST['email'];
$pwd = $_POST['pass'];
$rpwd = $_POST['repass'];
$city = $_POST['city'];
$age = $_POST['age'];
$gender = $_POST['gender'];
$courses = implode(',',$_POST['lang']);
if(empty($uname) || empty($name) || empty($email) || empty($pwd) || empty($rpwd) || empty($city) || empty($age) || empty($gender) || empty($courses)){
header("Location: ../register.php?error=emptyfields&name=".$name."&email=".$email."&city=".$city."&age=".$age);
exit();
}
elseif(!filter_var($email, FILTER_VALIDATE_EMAIL) && !preg_match("/^[a-zA-Z0-9]*$/", $uname){
header("Location: ../register.php?error=invaliduname&email");
exit();
}
elseif(!filter_var($email, FILTER_VALIDATE_EMAIL)){
header("Location: ../register.php?error=invalidemail&username=".$uname."name=".$name."&city=".$city."&age=".$age);
exit();
}
elseif(!preg_match("/^[a-zA-Z0-9]*$/", $username)){
header("Location: ../register.php?error=invalidusername&name=".$name."email=".$email."&city=".$city."&age=".$age);
exit();
}
elseif($pwd!=$rpwd){
header("Location: ../register.php?error=passwordcheck&username=".$uname."name=".$name."&email=".$email."&city=".$city."&age=".$age);
exit();
}
else{
$sql1 = "select * from users where uname=?";
$sql2 = "select * from users where email=?";
$stmt1 = mysqli_stmt_init($conn);
$stmt2 = mysqli_stmt_init($conn);
if(!mysqli_stmt_prepare($stmt1,$sql1) && !mysqli_stmt_prepare($stmt2,$sql2)){
header("Location: ../register.php?error=sqlerror");
exit();
}
else{
mysqli_stmt_bind_param($stmt1,"s",$uname);
mysqli_stmt_bind_param($stmt2,"s",$email);
mysqli_stmt_execute($stmt1);
mysqli_stmt_execute($stmt2);
mysqli_stmt_store_result($stmt1);
mysqli_stmt_store_result($stmt2);
$resultcheck1=mysqli_stmt_num_rows($stmt1);
$resultcheck2=mysqli_stmt_num_rows($stmt2);
if($resultcheck2>0){
header("Location: ../register.php?error=registeredemail");
exit();
}
elseif($resultcheck1>0){
header("Location: ../register.php?error=usernametaken");
exit();
}
else{
$sql="insert into users values(?,?,?,?,?,?,?,?)";
$stmt=mysqli_stmt_init($conn);
if(!mysqli_stmt_prepare($stmt,$sql)){
header("Location: ../register.php?error=sqlerror");
exit();
}
else{
$hpass = password_hash($pwd, PASSWORD_DEFAULT);
mysqli_bind_param($stmt,"ssssssss",$uname,$name,$email,$hpass,$city,$age,$gender,$courses);
mysqli_stmt_execute($stmt);
session_start();
$_SESSION['uid']=$uname;
header("Location: ../index.php");
exit();
}
}
}
}
}
else
{
header("Location: ../index.php");
exit();
}
?>
警告：mysqli_stmt_bind_param（）：第50行上C：\ xampp \ htdocs \ php \ sensitive_website \ includes \ signup.inc.php中的无效对象或资源mysqli_stmt
警告：mysqli_stmt_execute（）：第53行的C：\ xampp \ htdocs \ php \ sensitive_website \ includes \ signup.inc.php中的无效对象或资源mysqli_stmt
警告：mysqli_stmt_store_result（）：第56行上C：\ xampp \ htdocs \ php \ sensitive_website \ includes \ signup.inc.php中的无效对象或资源mysqli_stmt
警告：mysqli_stmt_num_rows（）：第59行上C：\ xampp \ htdocs \ php \ sensitive_website \ includes \ signup.inc.php中的无效对象或资源mysqli_stmt
致命错误：未捕获错误：调用C：\ xampp \ htdocs \ php \ sensitive_website \ includes \ signup.inc.php：78中未定义的函数mysqli_bind_param（）堆栈跟踪：＃0 {main}抛出在C：\第78行上的xampp \ htdocs \ php \ response_website \ includes \ signup.inc.php
答案 0 :(得分：1)
您的问题是，只有在两者的准备工作（$stmt1和$stmt2中）失败时，您才退出；如果其中一个，您都应该退出他们失败了。更改此行：
if(!mysqli_stmt_prepare($stmt1,$sql1) && !mysqli_stmt_prepare($stmt2,$sql2)){
到
if(!mysqli_stmt_prepare($stmt1,$sql1) || !mysqli_stmt_prepare($stmt2,$sql2)){
您还应该使用mysqli_error()来找出为什么准备失败，也许将其添加到您重定向到的位置，例如
header("Location: ../register.php?error=sqlerror&msg=" . urlencode(mysqli_error($conn)));
另一个问题是您有错字，第78行的mysqli_bind_param应该是mysqli_stmt_bind_param。