表單中的標記不起作用

Question

我在我的網站上開發了一個聯系表單，但是在這個表單中它有一個選擇不能該人可以選擇服務但我不知道如何在我的代碼中插入這個我想知道是否可能。 一開始我的代碼工作，我只是無法捕獲服務選項。 在控制台上按照我的代碼和錯誤圖像 在圖像中意識到唯一沒有出現任何內容和服務內容的字段

HTML：

<form id="form-elements" onSubmit="return false">
                <div class="row">
                    <div class="col-md-12 center">
                        <div id="result"></div>
                    </div>
                </div>

                <div class="row">
                    <div class="col-sm-4">
                        <div class="form-group">
                            <input type="text" class="form-control input-border" placeholder="Nome" name="name"
                                   id="name" required></div>
                    </div>
                    <div class="col-sm-4">
                        <div class="form-group">
                            <input type="email" class="form-control input-border" placeholder="E-mail" name="email"
                                   id="email" required></div>
                    </div>
                    <div class="col-sm-4">
                        <div class="form-group">
                            <input type="text" class="form-control input-border" placeholder="Telefone" name="phone"
                                   id="phone" required>
                        </div>
                    </div>
                    <div class="col-sm-12">
                        <div class="form-group">
                            <select class="form-control input-border" name="service" id="service" required>
                                <option disabled selected>Escolha um serviço</option>
                                <option value="comediante">Comediante</option>
                                <option value="apresentador">Apresentador</option>
                                <option value="ator">Ator</option>
                                <option value="reporter">Repórter</option>
                                <option value="cerimonialista">Cerimonialista</option>
                                <option value="roteirista">Roteirista</option>
                            </select>
                        </div>
                    </div>
                    <div class="col-xs-12">
                            <textarea id="input" class="form-control message-input" rows="7" required="required"
                                      placeholder="Mensagem" name="message" id="message"></textarea>
                    </div>
                    <button type="submit" class="btn btn-default buttons button-send" id="submit_btn">Quero Contratar</button>
                </div>
            </form>

JS：

//Contact Us
$("#submit_btn").click(function() {
    //get input field values
    var user_name       = $('input[name=name]').val();
    var user_email      = $('input[name=email]').val();
    var user_telephone      = $('input[name=phone]').val();
    var user_service      = $('input[name=service] option:selected').val();;
    var user_message    = $('textarea[name=message]').val();

    //simple validation at client's end
    var post_data, output;
    var proceed = true;
    if(user_name==""){
        proceed = false;
    }
    if(user_email==""){
        proceed = false;
    }
    if(user_message=="") {
        proceed = false;
    }

    //everything looks good! proceed...
    if(proceed)
    {
        //data to be sent to server
        post_data = {'userName':user_name, 'userEmail':user_email, 'userTelephone':user_telephone, 'userService':user_service, 'userMessage':user_message};

        //Ajax post data to server
        $.post('contact.php', post_data, function(response){

            //load json data from server and output message
            if(response.type == 'error')
            {
                output = '<div class="alert-danger" style="padding:10px; margin-bottom:25px;">'+response.text+'</div>';
            }else{
                output = '<div class="alert-success" style="padding:10px; margin-bottom:25px;">'+response.text+'</div>';

                //reset values in all input fields
                $('#form-elements input').val('');
                $('#form-elements textarea').val('');
            }

            $("#result").hide().html(output).slideDown();
        }, 'json');

    }
});

//reset previously set border colors and hide all message on .keyup()
$("#form-elements input, #form-elements textarea").keyup(function() {
    $("#result").slideUp();
});

PHP：

<?php
if($_POST)
{
    $to_Email       = "felipe@agenciafront.com.br"; //Replace with recipient email address
    $subject        = 'Contato para contratação de serviços'; //Subject line for emails


    //check if its an ajax request, exit if not
    if(!isset($_SERVER['HTTP_X_REQUESTED_WITH']) AND strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) != 'xmlhttprequest') {

        //exit script outputting json data
        $output = json_encode(
        array(
            'type'=>'error',
            'text' => 'Request must come from Ajax'
        ));

        die($output);
    }

    //check $_POST vars are set, exit if any missing
    if(!isset($_POST["userName"]) || !isset($_POST["userEmail"]) || !isset($_POST["userMessage"]))
    {
        $output = json_encode(array('type'=>'error', 'text' => 'Os campos de entrada estão vazios!  '));
        die($output);
    }

    //Sanitize input data using PHP filter_var().
    $user_Name        = filter_var($_POST["userName"], FILTER_SANITIZE_STRING);
    $user_Email       = filter_var($_POST["userEmail"], FILTER_SANITIZE_EMAIL);
    $user_Phone =                  $_POST["userTelephone"];
    $user_Service       = filter_var($_POST["userService"], FILTER_SANITIZE_EMAIL);
    $user_Message     = filter_var($_POST["userMessage"], FILTER_SANITIZE_STRING);

    //additional php validation
    if(strlen($user_Name)<3) // If length is less than 3 it will throw an HTTP error.
    {
        $output = json_encode(array('type'=>'error', 'text' => 'O campo nome não pode ficar vazio'));
        die($output);
    }
    if(!filter_var($user_Email, FILTER_VALIDATE_EMAIL)) //email validation
    {
        $output = json_encode(array('type'=>'error', 'text' => 'Por favor ultilize um e-mail válido'));
        die($output);
    }

    if(strlen($user_Message)<5) //check emtpy message
    {
        $output = json_encode(array('type'=>'error', 'text' => 'Por favor insira uma mensagem'));
        die($output);
    }


    $message_Body = "<strong>Name: </strong>". $user_Name ."<br>";
    $message_Body .= "<strong>Email: </strong>". $user_Email ."<br>";
    $message_Body .= "<strong>Phone: </strong>". $user_Phone ."<br>";
    $message_Body .= "<strong>Serviço: </strong>". $user_Service ."<br>";
    $message_Body .= "<strong>Message: </strong>". $user_Message ."<br>";



    $headers = "From: " . strip_tags($user_Email) . "\r\n";
    $headers .= "Reply-To: ". strip_tags($user_Email) . "\r\n";
    $headers .= "MIME-Version: 1.0\r\n";
    $headers .= "Content-Type: text/html; charset=UTF-8\r\n";



    //proceed with PHP email.
    $headers = 'From: '.$user_Email.'' . "\r\n" .
    'Reply-To: '.$user_Email.'' . "\r\n" .
    'X-Mailer: PHP/' . phpversion(). "\r\n" .
    'Content-type: text/html;charset=UTF-8';



    $sentMail = @mail($to_Email, $subject, $message_Body, $headers);

    if(!$sentMail)
    {
        $output = json_encode(array('type'=>'error', 'text' => 'Ocorreu um erro tente novamente'));
        die($output);
    }else{
        $output = json_encode(array('type'=>'message', 'text' => 'Olá '. $user_Name .' Obrigado pelo seu contato retornaremos em breve.'));
        die($output);
    }
}
?>

Answer 1

$('input[name=service]').val();

服務不是一個輸入，它是一個選擇。 改成

$('select[name="service"]').val()

Answer 2

select元素沒有值，這就是為什么你必須獲得所選選項的值。 所以你得到這樣的價值：

編輯

正如Todilo注意到的那樣，您正在嘗試使用input標記獲取元素，而不input select元素。

$('select[name="service"] option:selected').val();

例

 console.log($('select option:selected').val()); 

 <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script> <select> <option>Option 1</option> <option selected>Option 2</option> </select>