致命錯誤：調用一個非客觀的成員函數execute（）

Question

我是PDO的新手，不斷收到致命錯誤。我正在嘗試首先檢查空字段，然後檢查重複的電子郵件，然後如果該通行證將用戶數據插入到數據庫中。在搜索和搜索之後，我絕對失去了我錯誤的地方。這裏是我的代碼：

<?php 
session_start(); 

require_once('includes/db_connect.php'); 
include('functions/email-inject-function.php'); 

$first_name = trim($_POST['first_name']); 
$last_name = trim($_POST['last_name']);  
$email = trim($_POST['email']); 
$company = trim($_POST['company']); 
$phone = trim($_POST['phone']); 
$password = trim($_POST['password']); 

if ($_SERVER['REQUEST_METHOD'] == 'POST') { 

if(empty($_POST["first_name"])) { 
    $first_name_err = "<p>What is your first name?</p>"; 
    $errorflag = 1; 
} 
if(empty($_POST["last_name"])) { 
    $last_name_err = "<p>What is your last name?</p>"; 
    $errorflag = 1; 
} 
//checks email 
if(empty($_POST["email"])) { 
    $email_err = "<p>What is your email address?</p>"; 
    $errorflag = 1; 
} 
    if(empty($_POST["company"])) { 
    $company_err = "<p>What is your company name?</p>"; 
    $errorflag = 1; 
} 
    if(empty($_POST["phone"])) { 
    $phone_err = "<p>What is your phone number?</p>"; 
    $errorflag = 1; 
} 
    if(empty($_POST["password"])) { 
    $pass_err = "<p>Please enter a password</p>"; 
    $errorflag = 1; 
} 
    else { 
    $injected = IsInjected($email); 
    if ($injected == true) { 
    $email_valid_err = "<p>Please enter a valid email.</p>"; 
    $errorflag = 1; 
    } 
} 
try { 
    // Check if email is taken 
    $stmt = $dbh->prepare("SELECT * FROM `admins` WHERE `email` = :email"); 
    $stmt->execute(array('email' => $email)); 
    if ($stmt->fetchColumn() > 0) { 
    throw new Exception("That email is already taken."); 
    } 
    $sql="INSERT INTO admins (first_name, last_name, email, company, phone, password, reg_date) VALUES (:first_name, :last_name, :email, :company, :phone, SHA1('$password'), NOW())"; 
    $query = $dbh->prepare($sql); 
    $result->execute(array(':first_name'=>$first_name, ':last_name'=>$last_name, ':email'=>$email, ':company'=>$company, ':phone'=>$phone, ':password'=>$password)); 
    echo $result; 

    //catch any errors from try() 
    } 
    catch(PDOException $e) 
    { 
    echo $e->getMessage(); 
    } 
} 
?> 

Answer 1

它是一個簡單的錯誤：

取代$result與$query ....

所以：

$result->execute(array(':first_name'=>$first_name, ':last_name'=>$last_name, ':email'=>$email, ':company'=>$company, ':phone'=>$phone, ':password'=>$password)); 
echo $result; 

應該是：

$query->execute(array(':first_name'=>$first_name, ':last_name'=>$last_name, ':email'=>$email, ':company'=>$company, ':phone'=>$phone, ':password'=>$password)); 
echo $query; 

查詢也是錯誤的：

$sql="INSERT INTO admins (first_name, last_name, email, company, phone, password, reg_date) VALUES (:first_name, :last_name, :email, :company, :phone, SHA1('$password'), NOW())"; 

應該

$sql="INSERT INTO admins (first_name, last_name, email, company, phone, password, reg_date) VALUES (:first_name, :last_name, :email, :company, :phone, SHA1(:password), NOW())"; 

注意$密碼：密碼