这是打算在下周左右，但我有很多麻烦让网站发送电子邮件到一个输入框中指定的地址。
我需要使用wp\\U mail，因为我需要能够将php变量（电子邮件、正文和附件）传递到电子邮件。
据我所知，我已经正确地设置了表单，但在搜索了一段时间后，我发现使用JQuery（特别是AJAX）是最好的/唯一的方法，但我不知道这一切是如何工作的。
我希望这里有人能向我解释这一点，以便我能尽快完成这项工作。
在我的快捷码中，这将添加到页面中（忽略脚本函数，尝试失败）：
<div class="downloadHolder">
<h3>Download</h3>
<p style="margin-bottom: 20px;">Please note: FTB files can only be used if you have Free The Blobs on Android or iOS.</p>
<a href="<?php echo $intro;?>" download="<?php echo basename($intro) ?>" class="demoBtn">Download for PC</a>
<!--<a href="#" class="demoBtn">Demo</a>--><br>
<input type="text" name="emailValue" placeholder="Email Address" class="emailInput" style="text-align: center;">
<br><span>(We do NOT collect email addresses.)</span><br><br>
<button onclick="echoSendMail()" class="downloadBtn" style="width: 100% !important;">Email for Mobile</button>
</div>
<script>
function echoHello(){
alert("<?PHP emailSend(); ?>");
}
</script>
后来在同一个php文件中，我有了这个函数（$intro是上传文件（附件）的url）：
function emailSend(){
$to = $_GET[\'emailValue\'];
$subject = \'Download for\'.basename($intro);
$msg = \'Your download for\'.basename($intro).\'is attached to this email.\';
$headers = \'From: My Name <[email protected]>\' . "\\r\\n";
$mail_attachment = array(get_post_meta($post -> ID, $key = \'podcast_file\', true));
wp_mail($to, $subject, $msg, $headers, $mail_attachment);
}
SO网友:majick
第一种方法是使用post 方法，更容易理解：
<!-- form with AJAX action and iframe target -->
<form method="post" action="<?php echo admin_url(\'admin-ajax.php\'); ?>" target="emailsendframe">
<!-- AJAX action field to trigger function-->
<input type="hidden" name="action" value="download_email_send">
<!-- Post ID field -->
<input type="hidden" name="intro" value="<?php echo basename($intro); ?>">
<input type="hidden" name="postId" value="<?php echo $post->ID; ?>">
<input type="submit" class="downloadBtn" value="Download">
</form>
<!-- iframe for submitting to -->
<iframe name="emailsendframe" id="emailsendframe" src="javascript:void(0);" style="display:none;"></iframe>
当然，您可以在javascript函数中使用
get, 但您需要添加
id 添加到电子邮件输入元素，以便轻松添加。。。（警告是，如果您在同一页面上有多个下载按钮，那么这将不起作用，因为
id 需要是唯一的，您需要添加更多代码才能做到这一点。）
<!-- note id attribute is added -->
<input type="text" name="emailValue" id="emailValue" placeholder="Email Address" class="emailInput" style="text-align: center;">
<!-- button can stay as you have it -->
<button onclick="emailsend();" class="downloadBtn">Download</button>
<!-- get method AJAX email send script -->
<script>function emailsend() {
emailvalue = document.getElementById(\'emailValue\').value;
email = encodeURIComponent(emailvalue);
intro = encodeURIComponent(\'<?php echo basename($intro); ?>\');
downloadurl = \'<?php admin_url(\'admin-ajax.php\'); ?>?action=download_email_send&postId=<?php echo $post->ID; ?>&emailValue=\'+email+\'&intro=\'+intro;
document.getElementById(\'emailsendframe\').src = downloadurl;
}</script>
<!-- iframe for submitting to -->
<iframe name="emailsendframe" id="emailsendframe" src="javascript:void(0);" style="display:none;"></iframe>
然后在你的主题的功能。php（或插件或mu插件文件夹）通过附加
action 查询值到
wp_ajax_ （针对登录用户）和/或
wp_ajax_nopriv_ （匿名用户）WordPress中的操作：
// AJAX trigger for download_email_send action
add_action(\'wp_ajax_download_email_send\',\'download_email_send\');
add_action(\'wp_ajax_nopriv_download_email_send\',\'download_email_send\');
// note $_REQUEST will work with $_POST or $_GET methods
function download_email_send() {
$to = $_REQUEST[\'emailValue\'];
// preferably add some email address format validation here
// $validate = some_email_validate_function($to);
// if ($validated) {$message = \'Please check your email for typos.\';}
// else {
$post_id = $_REQUEST[\'postID\'];
// ! you would need to redefine $intro here !
$subject = \'Download for \'.$_REQUEST[\'intro\'];
$msg = \'Your download for \'.$_REQUEST[\'intro\'].\' is attached to this email.\';
$headers = \'From: My Name <[email protected]>\' . "\\r\\n";
$mail_attachment = array(get_post_meta($post_id, \'podcast_file\', true));
$send = wp_mail($to, $subject, $msg, $headers, $mail_attachment);
if ($send) {$message = \'Success! Check you email address.\';}
else {$message = \'Error: Mail sending failed.\';}
// }
// alert the user to the result
echo "<script>alert(\'".$message."\');</script>";
exit;
}
