[英]Cannot find solution to the problem in prepared statement(procedural php)
<?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(): 无效的对象或资源 mysqli_stmt in C:\\xampp\\htdocs\\php\\responsive_website\\includes\\signup.inc.php 第 50 行
警告:mysqli_stmt_execute():第 53 行 C:\\xampp\\htdocs\\php\\responsive_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 C:\\xampp\\htdocs\\php\\responsive_website\\includes\\signup.inc.php 中的无效对象或资源 mysqli_stmt
警告:mysqli_stmt_num_rows():C:\\xampp\\htdocs\\php\\responsive_website\\includes\\signup.inc.php 中第 59 行的无效对象或资源 mysqli_stmt
致命错误:未捕获的错误:调用 C:\\xampp\\htdocs\\php\\responsive_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:\\xampp\\htdocs \\php\\responsive_website\\includes\\signup.inc.php 第 78 行
您的问题是,您仅在准备( $stmt1
和$stmt2
)都失败$stmt2
退出,如果其中任何一个失败,您应该退出。 改变这一行:
if(!mysqli_stmt_prepare($stmt1,$sql1) && !mysqli_stmt_prepare($stmt2,$sql2)){
到
if(!mysqli_stmt_prepare($stmt1,$sql1) || !mysqli_stmt_prepare($stmt2,$sql2)){
您还应该使用mysqli_error()
来找出为什么失败的准备,也许并称该位置,您重定向到如
header("Location: ../register.php?error=sqlerror&msg=" . urlencode(mysqli_error($conn)));
你的另一个问题是你有一个错字, mysqli_bind_param
应该是第 78 行的mysqli_stmt_bind_param
。
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