ПДО - Недопустимый номер параметра

Question

Ниже приведен запрос на обновление ПДО, однако я получаю эти ошибки:

массив (3) {[0] => строка (5) "00000" [1] => NULL, [2] => NULL}

SQLSTATE [HY093]: недействительный номер параметра: количество связанных переменных не совпадает количество жетонов

Я недавно перешел к использованию PDO, так что не будет значить. после поиска этих ошибок я нашел очень мало проблем с запросом, поэтому я не понимаю, почему эти ошибки появляются.

<?php 
    error_reporting(E_ALL); ini_set("display_errors", 1); 

    if(isset($_POST["update_data"])){ 
    // connect to the database 

     $servername = 'HOST'; 
     $username = 'USER'; 
     $password = 'PASS'; 
     $dbname = 'TABLE'; 
     $current_user = $_SESSION['user_name']; 

    try { 
     $conn = new PDO("mysql:host=$servername;dbname=$dbname", $username, $password); 
     // set the PDO error mode to exception 
     $conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION); 

     $sql = "UPDATE table SET 
       user_name = :user_name, 
       user_email = :user_email, 
       user_phone = :user_phone, 
       user_gender = :user_gender, 
       employment_status = :employment_status, 
       user_min_salary = :user_min_salary, 
       user_dob = :user_dob, 
       user_location = :user_location, 
       user_years_experience = :user_years_experience, 
       job_title = :job_title, 
       company_name = :company_name, 
       user_responsibilities = :user_responsibilities, 
       job_duration = :job_duration, 
       job_title_two = :job_title_two, 
       company_name_two = :company_name_two, 
       user_responsibilities_two = :user_responsibilities_two, 
       job_duration_two = :job_duration_two, 
       job_title_three = :job_title_three, 
       company_name_three = :company_name_three, 
       user_responsibilities_three = :user_responsibilities_three, 
       job_duration_three = :job_duration_three, 
       job_title_four = :job_title_four, 
       company_name_four = :company_name_four, 
       user_responsibilities_four = :user_responsibilities_four, 
       job_duration_four = :job_duration_four, 
       job_title_five = :job_title_five, 
       company_name_five = :company_name_five, 
       user_responsibilities_five = :user_responsibilities_five, 
       job_duration_five = :job_duration_five, 
       edu_orgainzation = :edu_orgainzation, 
       edu_subject = :edu_subject, 
       edu_completion = :edu_completion, 
       edu_orgainzation_two = :edu_orgainzation_two, 
       edu_subject_two = :edu_subject_two, 
       edu_completion_two = :edu_completion_two, 
       edu_orgainzation_three = :edu_orgainzation_three, 
       edu_subject_three = :edu_subject_three, 
       edu_completion_three = :edu_completion_three, 
       edu_orgainzation_four = :edu_orgainzation_four, 
       edu_subject_four = :edu_subject_four, 
       edu_completion_four = :edu_completion_four, 
       edu_orgainzation_five = :edu_orgainzation_five, 
       edu_subject_five = :edu_subject_five, 
       edu_completion_five = :edu_completion_five, 
       language_short = :language_short, 
       cover_letter = :cover_letter, 
       last_update = NOW() 
       WHERE user_id = $current_user"; 

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

    var_dump($dbh->errorInfo());  

    $stmt->bindParam(':user_name', $_POST['user_name'], PDO::PARAM_STR);  
    $stmt->bindParam(':user_email', $_POST['$user_email'], PDO::PARAM_STR);  
    $stmt->bindParam(':user_phone', $_POST['user_phone'], PDO::PARAM_STR); 
    $stmt->bindParam(':user_gender', $_POST['user_gender'], PDO::PARAM_STR); 
    $stmt->bindParam(':employment_status', $_POST['employment_status'], PDO::PARAM_STR); 
    $stmt->bindParam(':user_min_salary', $_POST['user_min_salary'], PDO::PARAM_STR); 
    $stmt->bindParam(':user_dob', $_POST['user_dob'], PDO::PARAM_STR); 
    $stmt->bindParam(':user_location', $_POST['user_location'], PDO::PARAM_STR); 
    $stmt->bindParam(':user_years_experience', $_POST['user_years_experience'], PDO::PARAM_STR); 
    $stmt->bindParam(':job_title', $_POST['job_title'], PDO::PARAM_STR); 
    $stmt->bindParam(':company_name', $_POST['company_name'], PDO::PARAM_STR); 
    $stmt->bindParam(':user_responsibilities', $_POST['user_responsibilities'], PDO::PARAM_STR); 
    $stmt->bindParam(':job_duration', $_POST['job_duration'], PDO::PARAM_STR); 
    $stmt->bindParam(':job_title_two', $_POST['job_title_two'], PDO::PARAM_STR); 
    $stmt->bindParam(':company_name_two', $_POST['company_name_two'], PDO::PARAM_STR); 
    $stmt->bindParam(':user_responsibilities_two', $_POST['user_responsibilities_two'], PDO::PARAM_STR); 
    $stmt->bindParam(':job_duration_two', $_POST['job_duration_two'], PDO::PARAM_STR); 
    $stmt->bindParam(':job_title_three', $_POST['job_title_three'], PDO::PARAM_STR); 
    $stmt->bindParam(':company_name_three', $_POST['company_name_three'], PDO::PARAM_STR); 
    $stmt->bindParam(':user_responsibilities_three', $_POST['user_responsibilities_three'], PDO::PARAM_STR); 
    $stmt->bindParam(':job_duration_three', $_POST['job_duration_three'], PDO::PARAM_STR); 
    $stmt->bindParam(':job_title_four', $_POST['job_title_four'], PDO::PARAM_STR); 
    $stmt->bindParam(':company_name_four', $_POST['company_name_four'], PDO::PARAM_STR); 
    $stmt->bindParam(':user_responsibilities_four', $_POST['user_responsibilities_four'], PDO::PARAM_STR); 
    $stmt->bindParam(':job_duration_four', $_POST['job_duration_four'], PDO::PARAM_STR); 
    $stmt->bindParam(':job_title_five', $_POST['job_title_five'], PDO::PARAM_STR); 
    $stmt->bindParam(':company_name_five', $_POST['company_name_five'], PDO::PARAM_STR); 
    $stmt->bindParam(':user_responsibilities_five', $_POST['user_responsibilities_five'], PDO::PARAM_STR); 
    $stmt->bindParam(':job_duration_five', $_POST['job_duration_five'], PDO::PARAM_STR); 
    $stmt->bindParam(':edu_orgainzation', $_POST['edu_orgainzation'], PDO::PARAM_STR); 
    $stmt->bindParam(':edu_subject', $_POST['edu_subject'], PDO::PARAM_STR); 
    $stmt->bindParam(':edu_completion', $_POST['edu_completion'], PDO::PARAM_STR); 
    $stmt->bindParam(':edu_orgainzation_two', $_POST['edu_orgainzation_two'], PDO::PARAM_STR); 
    $stmt->bindParam(':edu_subject_two', $_POST['edu_subject_two'], PDO::PARAM_STR); 
    $stmt->bindParam(':edu_completion_two', $_POST['edu_completion_two'], PDO::PARAM_STR); 
    $stmt->bindParam(':edu_orgainzation_three', $_POST['edu_orgainzation_three'], PDO::PARAM_STR); 
    $stmt->bindParam(':edu_subject_three', $_POST['edu_subject_three'], PDO::PARAM_STR); 
    $stmt->bindParam(':edu_completion_three', $_POST['edu_completion_three'], PDO::PARAM_STR); 
    $stmt->bindParam(':edu_orgainzation_four', $_POST['edu_orgainzation_four'], PDO::PARAM_STR); 
    $stmt->bindParam(':edu_subject_four', $_POST['edu_subject_four'], PDO::PARAM_STR); 
    $stmt->bindParam(':edu_completion_four', $_POST['edu_completion_four'], PDO::PARAM_STR); 
    $stmt->bindParam(':edu_orgainzation_five', $_POST['edu_orgainzation_five'], PDO::PARAM_STR); 
    $stmt->bindParam(':edu_subject_five', $_POST['edu_subject_five'], PDO::PARAM_STR); 
    $stmt->bindParam(':edu_completion_five', $_POST['edu_completion_five'], PDO::PARAM_STR); 
    $stmt->bindParam(':language_short', $_POST['language_short'], PDO::PARAM_STR); 
    $stmt->bindParam(':cover_letter', $_POST['cover_letter'], PDO::PARAM_STR); 
    $stmt->bindParam(':last_update', $_POST['last_update'], PDO::PARAM_STR); 

    $stmt->execute(); 


     // echo a message to say the UPDATE succeeded 
     echo 'success'; 
     } 
    catch(PDOException $e) 
     { 
     echo $sql . "<br>" . $e->getMessage(); 
     } 

    $conn = null; 
    } 
    ?> 

спасибо, что заблаговременно!

Answer 1

Удалить эту строку:

$stmt->bindParam(':last_update', $_POST['last_update'], PDO::PARAM_STR);

Вам не нужно, чтобы связать параметр здесь, потому что вы используете NOW(), функцию MySQL. Как и в сообщении об ошибке, количество токенов не совпадает с количеством связанных параметров.