Mailchimp API 使用 AJAX 调用

Question

我正在使用

error:function(exception){alert('Exception:'+ JSON.stringify(exception));}

在出现 AJAX 错误时显示异常，这是我得到的响应：

Exception:{"readyState":4,"responseText":"","status":200,"statusText":"OK"}

这看起来像是对我的成功响应，但它是在 error 上调用的函数，这意味着出现问题。

这是页面：http://cuttingedgeconversions.com/free-month.html

我有一个成功的 API 调用，使用表单操作为 mail chimp 订阅一个新的电子邮件地址。但是我不想在提交表单后重定向到另一个页面，所以我取出了 'form action' 属性并尝试将此 API 调用添加到 script.js 使用 ajax。

这是 HTML：

<form class="email_form_freemonth" method="post">
<h3>Get your first month free</h3>
<div class="form-group customised-formgroup"> <span class="icon-user"></span>
<input type="text" name="full_name" class="form-control" placeholder="Name">
</div>
<div class="form-group customised-formgroup"> <span class="icon-envelope"></span>
<input type="email" name="email" class="form-control" placeholder="Email">
</div>
<!--<div class="form-group customised-formgroup"> <span class="icon-telephone"></span>
<input type="text" name="phone" class="form-control" placeholder="Phone (optional)">
</div>-->
<div class="form-group customised-formgroup"> <span class="icon-laptop"></span>
<input type="text" name="website" class="form-control" placeholder="Website (optional)">
</div>
<!--<div class="form-group customised-formgroup"> <span class="icon-bubble"></span>
<textarea name="message" class="form-control" placeholder="Message"></textarea>
</div>-->
<div>
<br>
<button style="margin: 0 auto" name="submit" type="submit" class="btn btn-fill full-width">GET FREE MONTH<span class="icon-chevron-right"></span></button>
</div>
</form>

这里是 freemonth_action.php（在 script.js 中被调用，如下所示）：

<?php

session_start();
if($_SERVER['REQUEST_METHOD'] == "POST"){
    $name = trim($_POST['full_name']);
    $email = trim($_POST['email']);
    if(!empty($email) && !filter_var($email, FILTER_VALIDATE_EMAIL) === false){
        // MailChimp API credentials
        $apiKey = '*****';
        $listID = '0cf013d1d9';

        // MailChimp API URL
        $memberID = md5(strtolower($email));
        $dataCenter = substr($apiKey,strpos($apiKey,'-')+1);
        $url = 'https://' . $dataCenter . '.api.mailchimp.com/3.0/lists/' . $listID . '/members/' . $memberID;

        // member information
        $json = json_encode([
            'email_address' => $email,
            'status'        => 'subscribed',
            'merge_fields'  => [
                'NAME'     => $name,
            ]
        ]);

        // send a HTTP POST request with curl
        $ch = curl_init($url);
        curl_setopt($ch, CURLOPT_USERPWD, 'user:' . $apiKey);
        curl_setopt($ch, CURLOPT_HTTPHEADER, ['Content-Type: application/json']);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($ch, CURLOPT_TIMEOUT, 10);
        curl_setopt($ch, CURLOPT_CUSTOMREQUEST, 'PUT');
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
        curl_setopt($ch, CURLOPT_POSTFIELDS, $json);
        $result = curl_exec($ch);
        $httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
        curl_close($ch);
        //echo json_decode($result);

        // store the status message based on response code
        if ($httpCode == 200) {
            $_SESSION['msg'] = '<p style="color: #34A853">You have successfully subscribed to CodexWorld.</p>';
        } else {
            switch ($httpCode) {
                case 214:
                    $msg = 'You are already subscribed.';
                    break;
                default:
                    $msg = 'Some problem occurred, please try again.';
                    break;
            }
            $_SESSION['msg'] = '<p style="color: #EA4335">'.$msg.'</p>';
        }
    }else{
        $_SESSION['msg'] = '<p style="color: #EA4335">Please enter valid email address.</p>';
    }
}

我知道这些是正确的，因为当我使用 'form action = scripts/freemonth_action.php' 时它起作用了。但我不希望页面在提交时重定向，所以我在我的脚本中添加了一个 ajax 调用，该调用从 script.js 触发。我现在在 script.js 中有 2 个 ajax 调用，第一个正在工作，但第二个没有。奇怪的是 BOTH RETURN STATUS CODE 200.

script.js 非嵌套 Ajax 调用 - 现在正常工作：

$('.email_form_freemonth').on('submit', function (e) {
        e.preventDefault();
        var _self = $(this);
        var __selector = _self.closest('input,textarea');
        _self.closest('div').find('input,textarea').removeAttr('style');
        _self.find('.msg').remove();
        _self.closest('div').find('button[type="submit"]').attr('disabled', 'disabled');
        var data = $(this).serialize();
        $.ajax({
            url: 'scripts/email_freeMonth.php',
            type: "post",
            dataType: 'json',
            data: data,
            success: function (data) {
                _self.closest('div').find('button[type="submit"]').removeAttr('disabled');
                if (data.code == false) {
                    _self.closest('div').find('[name="' + data.field + '"]').css('border-bottom', 'solid 2px red');
                    _self.find('.customised-formgroup').last().after('<div class="msg"><p style="color:red;padding:0;font-size:13px;font-weight:bold;position:absolute">*' + data.err + '</p></div>');
                } else {
                    $('.msg').html('<p style="color:green;padding:0;font-size:13px;font-weight:bold;position:absolute">' + data.success + '</p>');
                    _self.find('.customised-formgroup').last().after('<div class="msg"><p style="color:green;padding:0;font-size:13px;font-weight:bold;position:absolute">' + data.success + '</p></div>');
                    _self.closest('div').find('input,textarea').val('');
                }
            }
        });
        $.ajax({
            url: 'scripts/freemonth_action.php',
            type: "post",
            dataType: 'json',
            data: data,
            success: function (data) {
                _self.closest('div').find('button[type="submit"]').removeAttr('disabled');
                if (data.code == false) {
                    console.log("DATA.CODE == FALSE");
                } else {
                    console.log("DATA.CODE == TRUE");
                }
            }, 
            error:function(exception){alert('Exception:'+ JSON.stringify(exception));}
        });

    });

Answer 1

我觉得你需要在你第一次调用下添加ajax{}第二次调用{into}。

$('.email_form_freemonth').on('submit', function (e) {
        e.preventDefault();
        var _self = $(this);
        var __selector = _self.closest('input,textarea');
        _self.closest('div').find('input,textarea').removeAttr('style');
        _self.find('.msg').remove();
        _self.closest('div').find('button[type="submit"]').attr('disabled', 'disabled');
        var data = $(this).serialize();
        $.ajax({ //WORKS
            url: 'scripts/email_freeMonth.php',
            type: "post",
            dataType: 'json',
            data: data,
            success: function (data) {
                _self.closest('div').find('button[type="submit"]').removeAttr('disabled');
                if (data.code == false) {
                    _self.closest('div').find('[name="' + data.field + '"]').css('border-bottom', 'solid 2px red');
                    _self.find('.customised-formgroup').last().after('<div class="msg"><p style="color:red;padding:0;font-size:13px;font-weight:bold;position:absolute">*' + data.err + '</p></div>');
                } else {
                    $('.msg').html('<p style="color:green;padding:0;font-size:13px;font-weight:bold;position:absolute">' + data.success + '</p>');
                    _self.find('.customised-formgroup').last().after('<div class="msg"><p style="color:green;padding:0;font-size:13px;font-weight:bold;position:absolute">' + data.success + '</p></div>');
                    _self.closest('div').find('input,textarea').val('');
                }
            }
            
            //because you are under an event submit "form" and you ajax post was after this one
            $.ajax({ 
            url: 'scripts/freemonth_action.php',
            type: "post",
            dataType: 'json',
            success: function (data) {
                alert(data);
            }
            });
        });

Answer 2

当您通过 AJAX 请求传递序列化数据时，if(isset($_POST['submit'])) 不会评估为 true，因为按钮不是通过请求发送的数据的一部分。您可以改用 if($_SERVER['REQUEST_METHOD'] == "POST") 来检查请求是否已提交。只需在您的 PHP 文件中更新它，它就会起作用！

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