无法在数据库和插入数据创建表

Question

<form id="login" name="login-form" method="POST" action="add.php"> 
    <div class="form-group"> 
     <label for="email">User Email Address</label> 
     <input type="text" class="form-control" name="username" placeholder="Email address" id="username"> 
    </div> 
    <div class="form-group"> 
     <label for="password">Password</label> 
     <input type="password" class="form-control" name="password" placeholder="Password" id="password"> 
    </div> 
    <button type="submit" class="btn btn-add" name="add">Add</button> 

</form> 

add.php

<?php 
    include 'config/database.php'; 
    include 'functions.php'; 
    $user = $_POST['username']; 
    $pass = $_POST['password']; 
    addUser($user, $pass, $con); 
?> 

的functions.php

if (!function_exists('addUser')) { 
    function addUser($user, $pass, $link){ 

     if(isset($_POST)){ 
     $user = sanitize($user, "varchar", $link); 
     $pass = hash('sha256', $pass); 
     $userTable = "CREATE TABLE IF NOT EXISTS 'user'(
      'id' INT NOT NULL AUTO_INCREMENT PRIMARY KEY, 
      'email' varchar(60) DEFAULT NULL, 
      'pass' varchar(60) DEFAULT NULL)"; 

     if(!$con->query($userTable)){ 
     echo "Table is created successfully"; 
     } 
     else{ 
     echo "error: executing table"; 
     } 

     $query = "INSERT INTO $userTable(email, pass) VALUES('?','?')"; 
     $result = $link->prepare($query); 
     $result->bind_param('ss', $user, $pass); 
     $result->execute(); 
    } 
    } 
} 

测试插入，而不功能和它的工作。然后进入功能。 创建表似乎不工作。保持添加用户进行测试并看到没有添加新数据。不知道我错了哪里。欣赏帮助

Answer 1

在您的函数尝试修改此

if(!$con->query($userTable)){ 
    echo "Table is created successfully"; 
} 

要

if(!$link->query($userTable)){ 
    echo "Table is created successfully"; 
}