Question

我正在尝试仅使用PHP验证我的RSVP表单。当表单不完整时，用户应收到错误消息。我试图避免使用jQuery。

我正在使用本教程： http://premium.wpmudev.org/blog/how-to-build-your-own-wordpress-contact-form-and-why/

表单运行正常，但我还没有能够显示错误消息。我正在使用Wordpress，我希望表单出现在每个页面的页脚;不确定这是否使问题复杂化。这是我的代码：

<?php

$response = ""; 

//function to generate response
function my_contact_form_generate_response($type, $message) {

    global $response;

    if ($type == "success") {
        $response = "<div class='success'>{$message}</div>";
    } else { 
        $response = "<div class='error'>{$message}</div>";
    }
}


//response messages
$missing_content = "Please supply all information.";
$email_invalid   = "Email Address Invalid.";
$message_unsent  = "Message was not sent. Try Again.";
$message_sent    = "Thanks! Your message has been sent.";

//variables defined for messages 
$email = $_POST["rsvp_email"]; 
$name = $_POST["rsvp_name"];
$attend = $_POST["rsvp_attend"];
$number = $_POST["rsvp_number"];

//variables defined for message to admin
$to = get_option('admin_email'); //sending to wordpress admin email
$subject = "Just Kidding You Foo"; 
$headers = "From: $email\n";
$message = "$name $attend.\n RSVPs $number of people";

//conditional statements used for form validation

//validate email
if (!filter_var($email, FILTER_VALIDATE_EMAIL)) {
    my_contact_form_generate_response("error", $email_invalid);
} else { //email is valid

    //validate presence of name and message
    if(empty($name) || empty($attend) || empty($number)) {
        my_contact_form_generate_response("error", $missing_content);
    } else { //ready to go!
        $sent = wp_mail($to,$subject,$message,$headers);
        if($sent) {
            my_contact_form_generate_response("success", $message_sent); //message sent!
        } else {
            my_contact_form_generate_response("error", $message_unsent); //message wasn't sent
        }
    }
}

?>


<div id="page-rsvp">        

    <h1>RSVP</h1>

    <div id="respond">

    <?php echo $response; ?>

    <form action="<?php the_permalink(); ?>" method="post">               

        <!--Name here-->
        <div class="rsvp-full"><label for="rsvp_name"><input type="text" name="rsvp_name" value="Your name"></label></div>
        <div class="rsvp-full"><label for="rsvp_email"><input type="text" name="rsvp_email" value="Your email"></label></div>

        <!--status of attendance-->
        <div class="rsvp-full">
        <div class="rsvp-element"><input id="radio-button" type="radio" name="rsvp_attend" value="accepts">Accepts</div>
        <div class="rsvp-element"><input id="radio-button" type="radio" name="rsvp_attend" value="declines">Declines</div>
        </div>    

        <!--number of guests attending-->                    
        <div class="rsvp-full"><input type="number" name="rsvp_number" min="1" max="5">Total number of guests attending</div>    

         <div id="submit-button" class="rsvp-full"><input id="submit-button" type="submit"></div>

    </form> 

    </div>  


</div>

TIA !!!

Answer 1

我对WP并不熟悉，但如果我理解正确，我相信你会努力确保填写所有字段。

检查您的括号！ 您需要确保您的花括号在您想要的位置打开和关闭。否则，页面的输出将不会显示。我写了所有的大括号，因为我不够聪明，无法确定我知道他们在哪里开始和停止。我冒昧地将它们编辑到你的问题中。我相信最后有一个人失踪了。

一旦我修复了括号并删除了我的电脑没有的功能，它就能正常工作。

提示0：尝试在此脚本的顶部为此脚本启用错误报告 - error_reporting(E_ALL);。我总是为发展而努力。

提示1：使用placeholder属性代替value来代替“你的名字”。

提示2：确保已设置$_POST个变量。我会通过检查它们是否已设置然后将它们设置为''（如果它们不是）来执行此操作;像这样的东西：

//variables defined for messages 
// you could do it like this:
if (isset($_POST["rsvp_email"])) {
    $email =  $_POST["rsvp_email"]; 
} else {
    $email = '';
}

// or like this:
$name = '';
if (isset($_POST["rsvp_name"])) {
    $name = $_POST["rsvp_name"];
}

// or even using a ternary operator:
$attend = isset($_POST["rsvp_attend"]) ? $_POST["rsvp_attend"] : '';

//but this will trigger a "Notice" error if the post var isn't set.
$number = $_POST["rsvp_number"];

通过PHP验证简单的RSVP表单

1 个答案: