PHP注册不工作-mysqli->；查询

调用成员函数query（）表示您试图使用一个名为query的函数，该函数不作为php或用户定义函数存在

变量$query周围不应该有（）。用于调用函数的

只需使用$query=“您的sql查询”

您不应该依赖用户输入。在使用$\u POST变量之前，您已经为它们创建了新的变量，这是很好的，但您应该为将它们发送到数据库做好准备

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请注意SQL注入。请发布您的

connect.php

。删除密码和个人数据。连接到数据库并创建

$mysqli

的构造函数因未知原因失败。请在访问stackoverflow.com之前完成一些基本教程

 <?php

include('connect.php');


    if (isset($_POST['username']) && isset($_POST['password'])){

        $username = $_POST['username'];

        $email = $_POST['email'];

        $password = $_POST['password'];

        global $mysqli;

        $query = ("INSERT INTO lr (username, password, email) VALUES ('$username', '$password', '$email')");

        $result = $mysqli->query($query, $connection) or die(mysql_erorr());

        if($result === true){

            $msg = "User Created Successfully.";

        }

    }


  ?>

<form id="RegisterUserForm" action="" method="post" enctype="multipart/form-data">
    <fieldset>
         <p>
            <label for="name">Name</label>
            <input id="name" name="name" type="text" class="text" value="" />
         </p>

         <p>
            <label for="tel">Email</label>
            <input id="email" name="email" type="email"  value="" />
         </p>
         <p>
            <label for="Username">Username</label>
            <input id="username" name="username" type="username"  value="" />
         </p>
         <p>
            <label for="email">Password</label>
            <input id="password" type="password" name="password"  class="text" value="" />
         </p>

         <p>
            <label for="Cpassword">Confirm Password</label>
            <input id="Cpassword" name="Cpassword" class="text" type="password" />
         </p>

         <p>
            <label for="acceptTerms">
                I agree to the <a href="">Terms and Conditions</a> and <a href="">Privacy Policy</a><br/>
                <input id="acceptTerms" name="acceptTerms" type="checkbox" />
            </label>
         </p>

        <p>

                    Upload a picture of your student ID. This is for your own safety from fraud attempts


    <input type="file" name="fileToUpload" id="fileToUpload" style="color:green">
     <input type="submit" value="Upload Image" name="submit" style="color:green">
     <br/><br/><br/> 
        </p>

          <input type="submit" id="registerNew" value="Register" />

    </fieldset>


  ad

 </form> 

$query = "INSERT INTO lr (username, password, email) VALUES ('$username', '$password', '$email')";