WP_mail文件附件没有放在上载文件夹中？

我有一个表单，希望用户能够选择要上载的图像。图像临时上传到wp content/uploads文件夹，附加到电子邮件，然后销毁。

现在，表单正在提交，我可以看到图像正在响应标题中处理，但电子邮件中没有图像，上载文件夹中也没有图像文件。是否有人发现此代码有任何问题？

以下是表格：

<form id="shareForm" action="<?php echo get_template_directory_uri(); ?>/library/file-form.php" method="post" enctype="multipart/form-data">
    <input type="text" id="name" name="name" placeholder="Name" />
    <textarea rows="4" cols="50" name="message" id="message" placeholder="Message"></textarea>
    <input type="file" id="photo" name="photo" class="upload">
    <input type="submit" name="submit" value="Submit">
</form>

下面是我的PHP邮件脚本：

<?php
    require( \'../../../../wp-load.php\' );

if(isset($_POST["name"])){

    $name = $_POST["name"];
    $message = $_POST["message"];

    $fName = str_replace(array(\' \', \',\', \'\\\'\' ), \'-\');

    $date = new DateTime(null, new DateTimeZone(\'America/Chicago\'));
    $myDate = $date->format("m/d/Y H:i");
    $fileDate = $date->format("m-d-Y");
    $homeUrl = home_url(\'/\');

    if($_FILES["file"]["type"] != ""){

        $allowedExts = array("jpg", "png", "gif");
        $extension = end(explode(".", $_FILES["file"]["name"]));
        $newFileName = $fName . $fileDate."." .$extension;

        if ($_FILES["file"]["error"] > 0) {
            $myPath =  $homeUrl . \'share/?upload=error\';
            wp_redirect($myPath); exit;     

        } else {
            move_uploaded_file($_FILES["file"]["tmp_name"], WP_CONTENT_DIR . "/uploads/user-submitted/" . $newFileName);
        }

    }

    $to = \'my@email.com\';
    $subject = $fName . " submitted a photo";

    $message = "Date: " . $myDate . " EST \\n";
    $message .= "Message:  " .$message. "\\n";

    $attachments = array(WP_CONTENT_DIR . "/uploads/user-submitted/".$newFileName); 
    $headers[] = \'From: Photo Submissions <my@email.com>\';

    wp_mail( $to, $subject, $message, $headers, $attachments);

    unlink(WP_CONTENT_DIR . "/uploads/user-submitted/" . $newFileName);

    $myPath =  $homeUrl . \'share/?upload=success\';
    wp_redirect($myPath); 
    exit;   

}

?>

<?php function my_custom_email() { $to = \'my@email.com\'; $subject = \'WordPress wp_mail\'; $message = \' <html> <body> <table rules="all" style="border-color: #666;" cellpadding="10"> <tr>Hello WordPress</tr> </table> </body> </html> \'; $attachments = array( WP_PLUGIN_DIR . \'/my-plugin/uploads/sample_photo_01.jpg\' ); $headers[] = \'From: \'.get_option( \'blogname\' ).\' <\'.get_option( \'admin_email\' ).\'>\'; add_filter( \'wp_mail_content_type\', \'my_custom_email_content_type\' ); return wp_mail( $to, $subject, $message, $headers, $attachments ); } function my_custom_email_content_type() { return \'text/html\'; }

$attachments = array( WP_CONTENT_DIR . \'/uploads/file_to_attach.zip\' ); $headers = \'From: My Name <myname@example.com>\' . "\\r\\n"; wp_mail(\'test@example.org\', \'subject\', \'message\', $headers, $attachments );

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