Php 准备好的语句：致命错误：对非对象调用成员函数bind_param（）

我使用mysqli准备的语句，我有这个错误

fatal error: Call to a member function bind_param() on a non-object

我的代码是

    <?php
function register_user(){

//Javascripts
?>
<script type='text/javascript'>
        function alldone() {
        $().toastmessage('showToast', {
            text     : 'You have been registered, please confirm your account',
            sticky   : true,
            position : 'middle-center',
            type     : 'error',
            closeText: '',
            close    : function () {
                console.log("toast is closed ...");
            }
        });

    }


        function regdoneconfail() {
       $().toastmessage('showToast', {
            text     : 'You have been registered, but could not be added to the database for confirmation. Please contact an admin',
            sticky   : true,
            position : 'middle-center',
            type     : 'error',
            closeText: '',
            close    : function () {
                console.log("toast is closed ...");
            }
        });

    }

                function confsendfail() {
        $().toastmessage('showToast', {
            text     : 'The confirmation mail could not be sent, please contact an admin to confirm your account',
            sticky   : true,
            position : 'middle-center',
            type     : 'error',
            closeText: '',
            close    : function () {
                console.log("toast is closed ...");
            }
        });

    }

                        function noreg() {
        $().toastmessage('showToast', {
            text     : 'Your account could not be registered. Please contact an admin',
            sticky   : true,
            position : 'middle-center',
            type     : 'error',
            closeText: '',
            close    : function () {
                console.log("toast is closed ...");
            }
        });

    }


</script>

<?php
//no scripts
$noreg = 'Your account could not be registered. Please contact an admin';
$confsendfail = 'The confirmation mail could not be sent, please contact an admin to confirm your account';
$regdoneconfail = 'You have been registered, but could not be added to the database for confirmation. Please contact an admin';
$alldone = 'You have been registered, please confirm your account';
//Including the mysqli connect file
include 'includes/mysqli_connect_new.php';
//Loading up the security library
set_include_path(get_include_path().PATH_SEPARATOR."includes/secure/src");
spl_autoload_register('spl_autoload');
//Fireup the blowfish algorithm
$gen = new org\codeangel\security\passwords\DefaultPasswordGenerator;

//Setting error array
$action = array();  
$action['result'] = null;  
$text = array();  

//Defining variables for ease of use
$name = mysqli_real_escape_string($friend_zone, $_POST['name']);
$username = mysqli_real_escape_string($friend_zone, $_POST['username']);
$password = mysqli_real_escape_string($friend_zone, $_POST['password']);
$repeatpassword = mysqli_real_escape_string($friend_zone,$_POST['repeatpassword']);
$email = mysqli_real_escape_string($friend_zone, $_POST['email']);
$security_question = 'wgat';
$security_answer = 'what';
$captcha = mysqli_real_escape_string($friend_zone, $_POST['captcha']);
$date = date("Y-m-d");
$user_level = 0;
$user_pattern = '/[^A-Za-z0-9]/';
$name_pattern = '/[^A-Za-z0-9 ]/';

//Check to see if empty
if(empty($name)){ $action['result'] = 'error'; array_push($text,'<div id="errors">Please type in your name</div><br>'); }
if(empty($username)){ $action['result'] = 'error'; array_push($text,'<div id="errors">Please tpye in a username of your choice</div><br>'); }
if(empty($email)){ $action['result'] = 'error'; array_push($text,'<div id="errors">you have to type in your email dude, its necessary!</div><br>'); }
if(empty($password)){ $action['result'] = 'error'; array_push($text,'<div id="errors">Please type in a password</div><br>'); }
if(empty($repeatpassword)){ $action['result'] = 'error'; array_push($text,'<div id="errors">Please repeat the password</div><br>'); }
if(empty($captcha)) { $action['result'] = 'error'; array_push($text,'<div id="errors">You need to type in the captcha answer</div><br>'); }


//Checking for invalid characters
if(!empty($username)){ if(preg_match($user_pattern, $username)){ $action['result'] = 'error'; array_push($text,'<div id="errors">>Username contains invalid letters</div><br>'); } }
if(!empty($name)){ if(preg_match($name_pattern, $name)){ $action['result'] = 'error'; array_push($text,'<div id="errors">>Name has invalid letters</div><br>'); } }

//Checking if the entered passwords are matching
if(!empty($password) && $repeatpassword){ if($password != $repeatpassword){ $action['result'] = 'error'; array_push($text,'<div id="errors">Passwords do not match</div><br>'); } }

//checks length
if(!empty($username)){ if(strlen($username) < 6){ $action['result'] = 'error'; array_push($text,'<div id="errors">Username has to be more than 6 letters</div><br>'); } }
if(!empty($name)){ if(strlen($name) < 5){ $action['result'] = 'error'; array_push($text,'<div id="errors">Name has more than 5 letters</div><br>'); } }
if(!empty($password) && $repeatpassword){ if(strlen($password) < 7){ $action['result'] = 'error'; array_push($text,'<div id="errors">Passwords needs to have more than 7 letters</div><br>'); } }


//Checks if email and username is taken or not!
//username
if(!empty($username)){
$username_check = $friend_zone->prepare("SELECT username FROM users WHERE username = ?");
$username_check->bind_param("s", $username);
$username_check->execute();
$username_check->store_result();
$username_rows = $username_check->num_rows;

if($username_rows > 0){ $action['result'] = 'error'; array_push($text,'<div id="errors">Sorry, the username is already taken.</div><br>'); } }

//email
if(!empty($email)){
$email_check = $friend_zone->prepare("SELECT email FROM users WHERE email = ?");
$email_check->bind_param("s", $email);
$email_check->execute();
$email_check->store_result();
$email_rows = $email_check->num_rows;

if($email_rows > 0){ $action['result'] = 'error'; array_push($text,'<div id="errors">The emain address is in use, Click <a href="forgot_password.php">here</a> if you forgot your password</div><br>'); } }

//Checking the captcha?
if(!empty($captcha)){
if($captcha != 'Marshall'){  $action['result'] = 'error'; array_push($text,'<div id="errors">The captcha answer you typed in is wrong!</div><br>'); } }



if($action['result'] != 'error'){

//encrypting using Cyth security library
$password = $gen->genPassword($password);


//$add = "INSERT INTO users (name, username, password, email, security_answer, date, user_level, security_question) VALUES ('$name', '$username', '$password', '$email', '', '$date', '$user_level', '')";
//$result = mysqli_query($link, $add);
$register = $friend_zone->prepare("INSERT INTO users (name, username, password, email, security_answer, date, user_level, security_question) VALUES(?, ?, ?, ?, ?, ?, ?, ?)");
$register->bind_param('sssssiis', $name, $username, $password, $email, $security_answer, $date, $user_level, $security_question);


if($register->execute()){

//Time to prepare a random key and add it to confirmation table ;P
$key = $username . $email . $date;
$key = sha1($key);

$user_info = $friend_zone->prepare("SELECT username, email FROM users WHERE username = ?");
$user_info->bind_param("s", $username);
$user_info->execute();
$user_info->bind_result($check_id, $check_email);


while($user_info->fetch()){

$user_id = $check_id;
$user_email = $check_email;

$confirm_add = $friend_zone->prepare("INSERT into CONFIRM(user_id, username, key) VALUES(?, ?, ?)");
$confirm_add->bind_param('iss', $user_id, $username, $key);

if($confirm_add->execute())
{
echo "Possibly awesome";
//Send the mail

$to      = $user_email;
// subject
$subject = 'FreeFX Account Confirmation';

// message
$message ="
<html>
<head>
 <title>Account confirmation</title>
</head>
<body>
<p>Hello $username, you need to confirm your account before you can start using the entire features of our website.<br>
<a href='www.likeageek.net/confirm.php?username=$username&key_code=$key'>CLICK HERE</a>to confirm your account</p>
<br>
<center>OR</center>
<a href='www.likeageek.net/confirm.php'>Click here</a> and enter the following details in<br>
<table>
Username : $username
<br>
Key : $key
<br>
</table>
</body>
</html>
";

// To send HTML mail, the Content-type header must be set
$headers  = 'MIME-Version: 1.0' . "\r\n";
$headers .= 'Content-type: text/html; charset=iso-8859-1' . "\r\n";

// Additional headers
$headers .= 'To: $user_email; <$user_email;>' . "\r\n";
$headers .= 'From: FreeFX Dudes <noreply@freefx.net>' . "\r\n";

if (mail($to, $subject, $message, $headers)) {
  echo "<script type='text/javascript'> alldone() </script> <noscript> $alldone </noscript>";
} else { echo "<script type='text/javascript'> confsendfail() </script> <noscript> $confsendfail </noscript>"; }

} else { echo "<script type='text/javascript'> regdoneconfail() </script> <noscript> $regdoneconfail </noscript>"; }

}

} else { echo "<script type='text/javascript'> noreg() </script> <noscript> $noreg </noscript>"; }
} else {


?>
 <script type='text/javascript'>
        function showstickyerror() {
        $().toastmessage('showToast', {
            text     : '<?php echo implode($text); ?>',
            sticky   : true,
            position : 'middle-center',
            type     : 'error',
            closeText: '',
            close    : function () {
                console.log("toast is closed ...");
            }
        });

    }

        showstickyerror();
</script>
<noscript>
<?php echo "<div class='wrapbg'>
<span class='corners-top'><span></span></span>
<div id='content'><br/>
Errors
<hr class='hr1'>
".implode($text)."
</div>
<span class='corners-bottom'><span></span></span>
</div>
";
?>
</noscript>
<?php
}

 }

函数alldone（）{
$（）.toastmessage（'showtoos'{
文本：“您已注册，请确认您的帐户”，
斯蒂奇：是的，
位置：'中间位置'，
键入：“错误”，
closeText:“”，
关闭：函数（）{
日志（“toast已关闭…”）；
}
});
}
函数regdoneconfail（）{
$（）.toastmessage（'showtoos'{
text:'您已注册，但无法添加到数据库进行确认。请与管理员联系'，
斯蒂奇：是的，
位置：'中间位置'，
键入：“错误”，
closeText:“”，
关闭：函数（）{
日志（“toast已关闭…”）；
}
});
}
函数confsendfail（）{
$（）.toastmessage（'showtoos'{
文本：“无法发送确认邮件，请联系管理员确认您的帐户”，
斯蒂奇：是的，
位置：'中间位置'，
键入：“错误”，
closeText:“”，
关闭：函数（）{
日志（“toast已关闭…”）；
}
});
}
函数noreg（）{
$（）.toastmessage（'showtoos'{
文本：“您的帐户无法注册。请与管理员联系”，
斯蒂奇：是的，
位置：'中间位置'，
键入：“错误”，
closeText:“”，
关闭：函数（）{
日志（“toast已关闭…”）；
}
});
}
首先，您应该将prepare语句包装在一些错误处理中，以便查看发生了什么以及MySQL显示了什么错误。MySQL错误通常提供相当多的信息，并告诉您查询失败的位置（这通常有助于发现问题）

在这种情况下，我相当肯定是“key”列导致了问题。“key”在MySQL中是一个字符串，意思是如果您将其用作列名，则需要将其用反勾号包装

INSERT into CONFIRM (user_id, username, `key`) VALUES(?, ?, ?)

但是，在这种情况下，您也应该考虑重命名该列。
表名是确认，在小写中，我在查询中纠正了它，但仍然抛出一个错误，最有可能的是您以前的<代码>准备< /COD>方法返回false。您确认了
$confirm\u add
确实是一个对象吗？它的bool（false）我不知道为什么，有什么想法吗？您的查询格式不正确。请用空格将表名
confirm
与括号分开，如
插入'confirm`（…
.MySQL可能将其视为一个函数并抛出一个错误。虽然您应该能够使用
$mysqli->error
输出上一个错误。我将key重命名为activation\u key仍然是相同的错误：\，即使我尝试回显错误，它也只会抛出一些通知，而不会error@MarshallMathews你试过手动运行吗正在针对您的架构的测试版本使用一些实际值对示例查询进行加密？好的，我得到了一个不同步的命令。我在用户信息查询中执行了st0re\U结果，但它仍然没有修复