向表中添加多个条目

如何解决向表中添加多个条目

我正在尝试为我正在创建的继续教育网站注册客户，并且需要向 PHPMyAdmin 表“用户”添加多个条目以进行注册。我正在尝试添加多个条目，总共 25 个。

如您所见，我已尝试使用 MysqLi_multi_query() 函数将它们全部添加，但我无法为这些条目创建新记录。

它表明我已连接到数据库，并且我已将代码中的所有值与表中的值进行了检查，并且它们已被排序。所以我的问题是：

• 每张表的条目数有限制吗？
• 一次添加几个条目是否比多行登录页面更好？
• 我是否试图在一个文件中做太多事情而需要拆分我的工作？

我遇到的错误：

You are connected to the database. Error: INSERT INTO users (myName,home1,home2) VALUES (?,?,?);INSERT INTO users (city,ste,zip) VALUES (?,?);INSERT INTO users (email,certification,experience) VALUES (?,?);INSERT INTO users (employer,marketing,gender) VALUES (?,?);INSERT INTO users (dob,recert,full_name) VALUES (?,?);INSERT INTO users (phone,bHome1,bHome2) VALUES (?,?);INSERT INTO users (bCity,bState,bZip) VALUES (?,?);INSERT INTO users (payment,cardNum,expDate) VALUES (?,?);INSERT INTO users (pwd) VALUES (?);
You have an error in your sql Syntax; check the manual that corresponds to your MysqL server version for the right Syntax to use near '?,?);INSERT INTO users (' at line 1

到目前为止的代码验证所有条目，检查是否有空白条目，并使用函数 test-input。感谢任何帮助，包括从哪里学习对您的教育更有效的 PHP 的来源。预先感谢并感谢您的聆听。

<?PHP
// Defined variables for validation
$myNameErr = $home1Err = $home2Err =$cityErr = $steErr = $zipErr = $emailErr = "";
$certificationErr = $experienceErr = $employerErr = $marketingErr = "";
$genderErr = $dobErr = $recertErr = $full_nameErr = $phoneErr = $bHome1Err = ""; 
$bHome2Err = $bCityErr = $bStateErr = $bZipErr = $paymentErr = $cardNumErr = "";
$expDateErr = $pwdErr = $pwd2Err = "";
$myName = $home1 = $home2 = $city = $ste = $zip = $email = "";
$certification = $experience = $employer = $marketing = "";
$gender = $dob = $recert = $full_name = $phone = $bHome1 = ""; 
$bHome2 = $bCity = $bState = $bZip = $payment = $cardNum = "";
$expDate = $pwd = $pwd2 = "";

// Validating fields by checking if fields are empty
if ($_SERVER["REQUEST_METHOD"] == "POST") {
    // Checks full name
    if (empty($_POST['myName'])) {
        $myNameErr = "Name required.";
    } else {
        $myName = test_input($_POST['myName']);
        // check if name only contains letters and whitespace
        if (!preg_match("/^[a-zA-Z-' -.]*$/",$myName)) {
            $myNameErr = "Only letters and white space allowed";
        }
    }
    // Checks address
    if (empty($_POST['home1'])) {
        $home1Err = "Address required.";
    } else {
        $home1 = test_input($_POST['home1']);
    }
    // Checks additional address input
    if (empty($_POST['home2'])) {
        $home2 = test_input($_POST['home2']);
    }
    // Checks for city
    if (empty($_POST['city'])) {
        $cityErr = "City is required.";
    } else {
        $city = test_input($_POST['city']);
    }
    // Checks for state
    if (empty($_POST['ste'])) {
        $steErr = "State is required.";
    } else {
        $ste = test_input($_POST['ste']);
    }
    // Checks for zipcode
    if (empty($_POST['zip'])) {
        $zipErr = "Zip code is required.";
    } else {
        $zip = test_input($_POST['zip']);
    }
    // Checks for email and if format is correct
    if (empty($_POST['email'])) {
        $emailErr = "Email is required.";
    } else {
        $email = test_input($_POST['email']);
        // check if e-mail address is well-formed
        if (!filter_var($email,FILTER_VALIDATE_EMAIL)) {
            $emailErr = "Invalid email format";
        }
    }
    // Confirms the current email
    if (empty($_POST['email2'])) {
        $email2Err = "Confirm your email.";
    } else {
        $email2 = test_input($_POST['email2']);
        // check if e-mail address is well-formed
        if (!filter_var($email,FILTER_VALIDATE_EMAIL)) {
            $email2Err = "Invalid email format";
        }
        // Check if emails match
        if ($email != $email2) {
            $email2Err = "Emails don't match!";
        }
    }
    // Checks for modality certification
    if (empty($_POST['certification'])) {
        $certificationErr = "Current certification is required.";
    } else {
        $certification = test_input($_POST['certification']);
    }
    // Checks for years of experience
    if (empty($_POST['experience'])) {
        $experienceErr = "Years of experience are required.";
    } else {
        $experience = test_input($_POST['experience']);
    }
    // Checks for the current employer
    if (empty($_POST['employer'])) {
        $employerErr = "Current employer required.";
    } else {
        $employer = test_input($_POST['employer']);
    }
    // Input about how they heard about us
    if (empty($_POST['marketing'])) {
        $marketing = "";
    } else {
        $marketing = test_input($_POST['marketing']);
    }
    // Checks for gender
    if (empty($_POST['gender'])) {
        $genderErr = "Gender required.";
    } else {
        $gender = test_input($_POST['gender']);
    }
    // Check the date of birth
    if (empty($_POST['dob'])) {
        $dobErr = "Date of birth required.";
    } else {
        $dob = test_input($_POST['dob']);
    }
    // Checks their end of certification date
    if (empty($_POST['recert'])) {
        $recertErr = "Recertification date required.";
    } else {
        $recert = test_input($_POST['recert']);
    }
    // Checks name as in credit card
    if (empty($_POST['full_name'])) {
        $full_nameErr = "Name as written in credit card required.";
    } else {
        $full_name = test_input($_POST['full_name']);
    }
    // Checks for phone number
    if (empty($_POST['phone'])) {
        $phoneErr = "Phone number is required.";
    } else {
        $phone = test_input($_POST['phone']);
    }
    // Billing information
    // Checks for billing address
    if (empty($_POST['bHome1'])) {
        $bHome1 = "";
    } else {
        $bHome1 = test_input($_POST['bHome1']);
    }
    // Checks for billing address 2
    if (empty($_POST['bHome2'])) {
        $bHome2 = "";
    } else {
        $bHome2 = test_input($_POST['bHome2']);
    }
    // Checks for billing city
    if (empty($_POST['bCity'])) {
        $bCity = "";
    } else {
        $bCity = test_input($_POST['bCity']);
    }
    // Checks for billing state
    if (empty($_POST['bState'])) {
        $bState = "";
    } else {
        $bState = test_input($_POST['bState']);
    }
    // Checks for billing zip code
    if (empty($_POST['bZip'])) {
        $bZip = "";
    } else {
        $bZip = test_input($_POST['bZip']);
    }
    // Checks for payment mode
    if (empty($_POST['payment'])) {
        $paymentErr = "Mode of payment is required.";
    } else {
        $payment = test_input($_POST['payment']);
    }
    // Checks for credit card number
    if (empty($_POST['cardNum'])) {
        $cardNumErr = "Credit card number required.";
    } else {
        $cardNum = test_input($_POST['cardNum']);
    }
    // Checks for expiration date
    if (empty($_POST['expDate'])) {
        $expDateErr = "Card's expiration date required.";
    } else {
        $expDate = test_input($_POST['expDate']);
    }
    // Checks for password
    if (empty($_POST['pwd'])) {
        $pwdErr = "Password required.";
    } else {
        $pwd = test_input($_POST['pwd']);
    }
    // Asks to confirm password and if both match
    if (empty($_POST['pwd2'])) {
        $pwd2Err = "Confirm your email.";
    } else {
        $pwd2 = test_input($_POST['pwd2']);
        // Check if passwords match
        if ($pwd != $pwd2) {
            $pwd2Err = "Passwords don't match!";
        }
    }
}

function test_input($data) {
    $data = trim($data);
    $data = stripslashes($data);
    $data = htmlspecialchars($data);
    return $data;
} 

if(isset($_POST['submit'])){
    $myName = $_POST['myName'];
    $home1 = $_POST['home1'];
    $home2 = $_POST['home2'];
    $city = $_POST['city'];
    $ste = $_POST['ste'];
    $zip = $_POST['zip'];
    $email = $_POST['email'];
    $certification = $_POST['certification'];
    $experience = $_POST['experience'];
    $employer = $_POST['employer'];
    $marketing = $_POST['marketing'];
    $gender = $_POST['gender'];
    $dob = $_POST['dob'];
    $recert = $_POST['recert'];
    $full_name = $_POST['full_name'];
    $phone = $_POST['phone'];
    $bHome1 = $_POST['bHome1'];
    $bHome2 = $_POST['bHome2'];
    $bCity = $_POST['bCity'];
    $bState = $_POST['bState'];
    $bZip = $_POST['bZip'];
    $payment = $_POST['payment'];
    $cardNum = $_POST['cardNum'];
    $expDate = $_POST['expDate'];
    $pwd = $_POST['pwd'];

    // Adding multiple values to database table users
    $sql = "INSERT INTO TABLE users (myName,?);";
    $sql .= "INSERT INTO TABLE users (city,?);";
    $sql .= "INSERT INTO TABLE users (email,?);";
    $sql .= "INSERT INTO TABLE users (employer,?);";
    $sql .= "INSERT INTO TABLE users (dob,?);";
    $sql .= "INSERT INTO TABLE users (phone,?);";
    $sql .= "INSERT INTO TABLE users (bCity,?);";
    $sql .= "INSERT INTO TABLE users (payment,?);";
    $sql .= "INSERT INTO TABLE users (pwd) VALUES (?);";

    // Trying to save to the database
    if (MysqLi_multi_query($con,$sql)) {
        echo "New records created successfully";
    } else {
        echo "Error: " . $sql . "<br>" . MysqLi_error($con);
    }


    $hashPwd = password_hash($pwd,PASSWORD_DEFAULT);

    $stmt->bind_param("sssssssssssssssssssssssss",$myName,$home1,$home2,$city,$ste,$zip,$email,$certification,$experience,$employer,$marketing,$gender,$dob,$recert,$full_name,$phone,$bHome1,$bHome2,$bCity,$bState,$bZip,$payment,$cardNum,$expDate,$hashPwd); 
      
    MysqLi_close($con);
}

解决方法

您的多查询完全错误。它将创建九行新行，每行包含用户的一部分数据，而不是一行。您只有一组数据，因此您根本不需要 multi_query。

你需要

// Adding multiple values to database table users
    $sql = "INSERT INTO TABLE users (myName,home1,home2,city,ste,zip,email,employer,marketing,gender,certification,experience,dob,recert,full_name,phone,bHome1,bHome2,bCity,bState,bZip,payment,cardNum,expDate,pwd) VALUES (?,?,?);";

    $stmt = $con->prepare($sql);

    $hashPwd = password_hash($pwd,PASSWORD_DEFAULT);

    $stmt->bind_param("sssssssssssssssssssssssss",$myName,$home1,$home2,$city,$ste,$zip,$email,$certification,$experience,$employer,$marketing,$gender,$dob,$recert,$full_name,$phone,$bHome1,$bHome2,$bCity,$bState,$bZip,$payment,$cardNum,$expDate,$hashPwd); 

   $result = $stmt->execute();

,

你需要准备你的sql，绑定参数然后执行。忘记mysqli函数。

 $sql = "INSERT INTO TABLE users (myName,?);";

 $stmt = $con->prepare($sql);
    
 $hashPwd = password_hash($pwd,PASSWORD_DEFAULT);
    
 $stmt->bind_param("sssssssssssssssssssssssss",$hashPwd); 

 $stmt->execute();
      
 mysqli_close($con);

您收到该错误是因为 mysql 不知道是什么？是。您几乎试图执行无效的 sql 的 INSERT INTO users (city,zip) VALUES (?,?);。必须先转换变量。

此外，这对您来说可能有点高级，但您绝对可以从中重构出很多冗余代码......只要练习一下，你就会明白的！

这是我在谈论的粗略的内容

if ($_SERVER["REQUEST_METHOD"] != "POST") { 
    //Better to exit on smaller if then wrap everything in if statement.
    die();
}

$list = [
    'myName' => [ 'type' => 's','value' => '','err' => 'Name required.'],'home1' => [ 'type' => 's','err' => 'Address required.'],'home2' => [ 'type' => 's','err' => '']
    // Complete all your entries
];

$hasErr = false;
foreach($list as $key => &$item){
    if (empty($_POST[$key])) {
        $item['value'] = $item['err'];
    } else {
        $hasErr = true;
        $item['value'] = test_input($_POST[$key]);
        switch($key){
            case'myName':
                if (!preg_match("/^[a-zA-Z-' -.]*$/",$item['value'])) {
                    $item['value'] = "Only letters and white space allowed";
                }
                break;
            // Add more casses for more special proccessing.
        }
    }
}
unset($item); //Always unset pointers after loop.

if(!$hasErr){
    $sql = "INSERT INTO users(";
    $sqlCols = [];
    $sqlVals = [];

    foreach($list as $key => $item){
        $sqlCols[] = $key;
        $sqlVals[] = "?";
    }
    $sql .= implode(",",$sqlCols) . ") values ( " . implode(",$sqlVals ). " )";
    $stmt->prepare($sql);
    foreach($list as $key => $item){
        // Actually not sure this is possible,worth a shot though.
        $stmt->pind_param($item['type'],$item['value']);
    }
    $stm->execute();
} else{
    //Handle error
}