我在中创建了一个自定义函数functions.php 处理Mailchimp订阅服务器列表的表单提交。我正在JavaScript中调用AJAX来处理PHP。我面临的问题是，即使Mailchimp函数不成功，我的AJAX调用也总是返回“success”。当Mailchimp subscribe函数成功时，它将返回代码200, 如果不成功，将返回代码400. 如何重新配置JS，使代码400 会在AJAX调用中触发错误函数吗？
下面是我的PHP函数的一部分：
curl_setopt($mchAPI, CURLOPT_URL, \'https://\' . substr($apiKey, strpos($apiKey, \'-\') + 1) . \'.api.mailchimp.com/3.0/lists/\' . $listID . \'/members/\' . md5(strtolower($email)));
curl_setopt($mchAPI, CURLOPT_HTTPHEADER, array(\'Content-Type: application/json\', \'Authorization: Basic \' . base64_encode(\'user:\' . $apiKey)));
curl_setopt($mchAPI, CURLOPT_USERAGENT, \'PHP-MCAPI/2.0\');
curl_setopt($mchAPI, CURLOPT_RETURNTRANSFER, true);
curl_setopt($mchAPI, CURLOPT_CUSTOMREQUEST, \'PUT\');
curl_setopt($mchAPI, CURLOPT_TIMEOUT, 10);
curl_setopt($mchAPI, CURLOPT_POST, true);
curl_setopt($mchAPI, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($mchAPI, CURLOPT_POSTFIELDS, json_encode($data));
$result = curl_exec($mchAPI);
$responseCode = curl_getinfo($mchAPI, CURLINFO_HTTP_CODE); // This will return \'200\' if successful or \'400\' if unsuccessful
以下是我的AJAX调用：
$.ajax({
url: postURL,
method: \'POST\',
data: serialized,
success: function(response) {
// Always ends here even if subscribe is unsuccesful
alert(\'SUCCESS!\');
},
error: function(xhr, ajaxOptions, thrownerror) {
alert(\'FAILED \' + thrownerror);
}
});
最合适的回答,由SO网友:Sally CJ 整理而成
如何重新配置JS，使代码400 会在AJAX调用中触发错误函数吗？
这个error 在您的$.ajax() 如果服务器响应的HTTP状态标头不是“OK”（代码：200)，因此通过处理AJAX请求的PHP函数，只需发送一个HTTP状态头和代码400 （“错误请求”）当$responseCode 是400.
您可以使用wp_die():
add_action( \'wp_ajax_your-action\', function(){
...
$responseCode = curl_getinfo($mchAPI, CURLINFO_HTTP_CODE);
// Send a response and the HTTP status header.
if ( \'200\' == $responseCode ) {
echo \'Subscribed\'; // success message/data
wp_die(); // here the code defaults to 200
} else {
echo \'Not subscribed\'; // error message/data
wp_die( \'\', 400 );
}
} );
或使用
status_header() 发送自定义HTTP错误消息；i、 e.违约除外
Bad Request 当代码为
400:
add_action( \'wp_ajax_your-action\', function(){
...
$responseCode = curl_getinfo($mchAPI, CURLINFO_HTTP_CODE);
// Send a response and the HTTP status header.
if ( \'200\' == $responseCode ) {
echo \'Subscribed\'; // success message/data
status_header( 200, \'OK\' );
} else {
echo \'Not subscribed\'; // error message/data
status_header( 400, \'Custom HTTP Error\' );
}
die(); // not wp_die()
} );
