Question

经过多次不同的尝试后，我终于能够在我的bootstrap联系表单中添加一个有效的验证码。我最终使用了phpcaptcha.org的SecureImage。它似乎工作正常 - 如果正确输入验证码，它会发送电子邮件，如果验证码输入不正确，则不发送电子邮件。但是，如果输入了错误的验证码，我无法显示错误消息。相反，它仍会显示一条消息，说明电子邮件已成功发送，而实际上并非如此。我的联系表单使用带有ajax函数的contact_me.js文件来验证并将表单内容发送到contact_me.php文件进行处理。使用jqBoostrapValidation.js结合contact_me.js验证表单。

如果输入了错误的验证码，我怎样才能在html页面上发布错误消息（与其他字段验证一样）。我是PHP和JS / Ajax的新手，我使用的联系表单是startBootstrap.com提供的模板。我假设我需要某种回调函数将PHP的验证码失败结果带回contact_me.js文件以显示错误 - 但我不知道如何执行此操作。任何帮助将不胜感激。

HTML：

    <form name="sentMessage" id="contactForm" novalidate>
                    <div class="row control-group">
                        <div class="form-group col-xs-12 floating-label-form-group controls">
                            <label>Name</label>
                            <input type="text" class="form-control" placeholder="Name" id="name" required data-validation-required-message="Please enter your name.">
                            <p class="help-block text-danger"></p>
                        </div>
                    </div>
                    <div class="row control-group">
                        <div class="form-group col-xs-12 floating-label-form-group controls">
                            <label>Email Address</label>
                            <input type="email" class="form-control" placeholder="Email Address" id="email" required data-validation-required-message="Please enter your email address.">
                            <p class="help-block text-danger"></p>
                        </div>
                    </div>
                    <div class="row control-group">
                        <div class="form-group col-xs-12 floating-label-form-group controls">
                            <label>Phone Number</label>
                            <input type="tel" class="form-control" placeholder="Phone Number" id="phone" required data-validation-required-message="Please enter your phone number.">
                            <p class="help-block text-danger"></p>
                        </div>
                    </div>
                    <div class="row control-group">
                        <div class="form-group col-xs-12 floating-label-form-group controls">
                            <label>Message</label>
                            <textarea rows="5" class="form-control" placeholder="Message" id="message" required data-validation-required-message="Please enter a message."></textarea>
                            <p class="help-block text-danger"></p>
                        </div>
                    </div>
                    <br>        
                    <img id="captcha" src="/securimage/securimage_show.php" alt="CAPTCHA Image" />
                    <input type="text" name="captcha_code" size="10" id="captcha_code" maxlength="6" />

[不同形象]

                                                                                                               发送

contact_me.js：

    $(function() {

    $("input,textarea").jqBootstrapValidation({
        preventSubmit: true,
        submitError: function($form, event, errors) {
            // additional error messages or events
        },
        submitSuccess: function($form, event) {
            // Prevent spam click and default submit behaviour
            $("#btnSubmit").attr("disabled", true);
            event.preventDefault();

            // get values from FORM
            var name = $("input#name").val();
            var email = $("input#email").val();
            var phone = $("input#phone").val();
            var captcha_code = $("input#captcha_code").val();
            var message = $("textarea#message").val();
            var firstName = name; // For Success/Failure Message
            // Check for white space in name for Success/Fail message
            if (firstName.indexOf(' ') >= 0) {
                firstName = name.split(' ').slice(0, -1).join(' ');
            }
            $.ajax({
                url: "././mail/contact_me.php",
                type: "POST",
                data: {
                    name: name,
                    phone: phone,
                    email: email,
                    captcha_code: captcha_code,
                    message: message
                },
                cache: false,
                success: function() {
                    // Enable button & show success message
                    $("#btnSubmit").attr("disabled", false);
                    $('#success').html("<div class='alert alert-success'>");
                    $('#success > .alert-success').html("<button type='button' class='close' data-dismiss='alert' aria-hidden='true'>&times;")
                        .append("</button>");
                    $('#success > .alert-success')
                        .append("<strong>Your message has been sent. </strong>");
                    $('#success > .alert-success')
                        .append('</div>');

                    //clear all fields
                    $('#contactForm').trigger("reset");
                },
                error: function() {
                    // Fail message
                    $('#success').html("<div class='alert alert-danger'>");
                    $('#success > .alert-danger').html("<button type='button' class='close' data-dismiss='alert' aria-hidden='true'>&times;")
                        .append("</button>");
                    $('#success > .alert-danger').append("<strong>Sorry " + firstName + ", it seems that my mail server is not responding. Please try again later!");
                    $('#success > .alert-danger').append('</div>');
                    //clear all fields
                    $('#contactForm').trigger("reset");
                },
            })
        },
        filter: function() {
            return $(this).is(":visible");
        },
    });

    $("a[data-toggle=\"tab\"]").click(function(e) {
        e.preventDefault();
        $(this).tab("show");
    });
});

// When clicking on Full hide fail/success boxes
$('#name').focus(function() {
    $('#success').html('');
});

contact_me.php：

<?php
session_start();
// Check for empty fields
if(empty($_POST['name'])        ||
empty($_POST['email'])      ||
empty($_POST['phone'])      ||
empty($_POST['message'])    ||
!filter_var($_POST['email'],FILTER_VALIDATE_EMAIL))
{
echo "No arguments Provided!";
return false;
}

include_once $_SERVER['DOCUMENT_ROOT'] . '/securimage/securimage.php';
$securimage = new Securimage();

if ($securimage->check($_POST['captcha_code']) == false) {
  // the code was incorrect
  echo "The security code entered was incorrect.<br /><br />";
  echo "Please go <a href='javascript:history.go(-1)'>back</a> and try again.";
  exit;
}


$name = $_POST['name'];
$email_address = $_POST['email'];
$phone = $_POST['phone'];
$message = $_POST['message'];

// Create the email and send the message
$to = 'info@rexmillerportfolio.com'; // Add your email address inbetween the '' replacing yourname@yourdomain.com - This is where the form will send a message to.
$email_subject = "Portfolio Website Message:  $name";
$email_body = "You have received a new message from your portfolio website contact form.\n\n"."Here are the details:\n\nName: $name\n\nEmail: $email_address\n\nPhone: $phone\n\nMessage:\n$message";
$headers = "From: noreply@rexmillerportfolio.com\n"; // This is the email address the generated message will be from. We recommend using something like noreply@yourdomain.com.
$headers .= "Reply-To: $email_address"; 
mail($to,$email_subject,$email_body,$headers);
return true; 

?>

Answer 1

在表单方面看起来成功的原因是因为无论验证码的值或联系表单中的错误如何，都会调用jQuery的ajax success方法。这仅表示服务器返回了成功的响应。

您需要稍微修改PHP和Javascript代码以处理表单错误。

以下是更改PHP代码以返回JSON响应的建议，然后您可以在客户端进行检查：

<?php
session_start();
$response = array('error' => true, 'message' => 'OK');

// Check for empty fields
if(empty($_POST['name'])        ||
empty($_POST['email'])      ||
empty($_POST['phone'])      ||
empty($_POST['message'])    ||
!filter_var($_POST['email'],FILTER_VALIDATE_EMAIL))
{
    $response['message'] = "No arguments Provided!";
    die(json_encode($response));
}

include_once $_SERVER['DOCUMENT_ROOT'] . '/securimage/securimage.php';
$securimage = new Securimage();

if ($securimage->check($_POST['captcha_code']) == false) {
  // the code was incorrect
    $response['message'] = "The security code entered was incorrect.";
    die(json_encode($response));
}


$name = $_POST['name'];
$email_address = $_POST['email'];
$phone = $_POST['phone'];
$message = $_POST['message'];

// Create the email and send the message
$to = 'info@rexmillerportfolio.com'; // Add your email address inbetween the '' replacing yourname@yourdomain.com - This is where the form will send a message to.
$email_subject = "Portfolio Website Message:  $name";
$email_body = "You have received a new message from your portfolio website contact form.\n\n"."Here are the details:\n\nName: $name\n\nEmail: $email_address\n\nPhone: $phone\n\nMessage:\n$message";
$headers = "From: noreply@rexmillerportfolio.com\n"; // This is the email address the generated message will be from. We recommend using something like noreply@yourdomain.com.
$headers .= "Reply-To: $email_address"; 
mail($to,$email_subject,$email_body,$headers);

$response['error'] = false;

die(json_encode($response));

然后像这样修改Javascript以查看JSON响应：

$(function() {

    $("input,textarea").jqBootstrapValidation({
        preventSubmit: true,
        submitError: function($form, event, errors) {
            // additional error messages or events
        },
        submitSuccess: function($form, event) {
            // Prevent spam click and default submit behaviour
            $("#btnSubmit").attr("disabled", true);
            event.preventDefault();

            // get values from FORM
            var name = $("input#name").val();
            var email = $("input#email").val();
            var phone = $("input#phone").val();
            var captcha_code = $("input#captcha_code").val();
            var message = $("textarea#message").val();
            var firstName = name; // For Success/Failure Message
            // Check for white space in name for Success/Fail message
            if (firstName.indexOf(' ') >= 0) {
                firstName = name.split(' ').slice(0, -1).join(' ');
            }
            $.ajax({
                url: "././mail/contact_me.php",
                type: "POST",
                dataType: 'json',
                data: {
                    name: name,
                    phone: phone,
                    email: email,
                    captcha_code: captcha_code,
                    message: message
                },
                cache: false,
                success: function(response) {
                    if (response.error) {
                        alert(response.message);
                        // TODO: customize to use dialog to show error
                    } else {
            // Enable button & show success message
            $("#btnSubmit").attr("disabled", false);
            $('#success').html("<div class='alert alert-success'>");
            $('#success > .alert-success').html("<button type='button' class='close' data-dismiss='alert' aria-hidden='true'>&times;")
                .append("</button>");
            $('#success > .alert-success')
                .append("<strong>Your message has been sent. </strong>");
            $('#success > .alert-success')
                .append('</div>');

            //clear all fields
            $('#contactForm').trigger("reset");
                    }
                },
                error: function() {
                    // Fail message
                    $('#success').html("<div class='alert alert-danger'>");
                    $('#success > .alert-danger').html("<button type='button' class='close' data-dismiss='alert' aria-hidden='true'>&times;")
                        .append("</button>");
                    $('#success > .alert-danger').append("<strong>Sorry " + firstName + ", it seems that my mail server is not responding. Please try again later!");
                    $('#success > .alert-danger').append('</div>');
                    //clear all fields
                    $('#contactForm').trigger("reset");
                },
            })
        },
        filter: function() {
            return $(this).is(":visible");
        },
    });

    $("a[data-toggle=\"tab\"]").click(function(e) {
        e.preventDefault();
        $(this).tab("show");
    });
});

// When clicking on Full hide fail/success boxes
$('#name').focus(function() {
    $('#success').html('');
});

验证JS中的secureimage验证码

1 个答案: