WordPress默认主题中用户留言评论，如果我们去回复之后，或者我们用户评论的时候也不会自动通知博主的。我们可以添加评论邮件通知，这样可以及时的与用户进行互动。当然，有很多插件可以实现这样的功能，在这篇文章中，收集到的办法是不用插件，直接在当前主题Functions.php文件中加入代码就可以实现。
第一、自动默认全部通知
// 评论回应邮件通知
function comment_mail_notify($comment_id) {
$admin_notify = ‘1’; // admin 要不要收回复通知 ( ‘1’=要 ; ‘0’=不要 )
$admin_email = get_bloginfo (‘admin_email’); // $admin_email 可改为你指定的 e-mail.
$comment = get_comment($comment_id);
$comment_author_email = trim($comment->comment_author_email);
$parent_id = $comment->comment_parent ? $comment->comment_parent : ”;
global$wpdb;
if ($wpdb->query(“Describe {$wpdb->comments} comment_mail_notify”) == ”)
$wpdb->query(“ALTER TABLE {$wpdb->comments} ADD COLUMN comment_mail_notify TINYINT NOT NULL DEFAULT 0;”);
if (($comment_author_email != $admin_email && isset($_POST[‘comment_mail_notify’])) || ($comment_author_email == $admin_email && $admin_notify == ‘1’))
$wpdb->query(“UPDATE {$wpdb->comments} SET comment_mail_notify=’1′ WHERE comment_ID=’$comment_id'”);
$notify = $parent_id ? get_comment($parent_id)->comment_mail_notify : ‘0’;
$spam_confirmed = $comment->comment_approved;
if ($parent_id != ” && $spam_confirmed != ‘spam’ && $notify == ‘1’) {
$wp_email = ‘no-reply@’ . preg_replace(‘#^www\.#’, ”, strtolower($_SERVER[‘SERVER_NAME’])); // e-mail 发出点, no-reply 可改为可用的 e-mail.
$to = trim(get_comment($parent_id)->comment_author_email);
$subject = ‘您在 [‘ . get_option(“blogname”) . ‘] 的留言有了回应’;
$message = ‘
<div style=”background-color:#eef2fa; border:1px solid #d8e3e8; color:#111; padding:0 15px; -moz-border-radius:5px; -webkit-border-radius:5px; -khtml-border-radius:5px;”>
<p>’ . trim(get_comment($parent_id)->comment_author) . ‘, 您好!</p>
<p>您曾在《’ . get_the_title($comment->comment_post_ID) . ‘》的留言:<br />’
. trim(get_comment($parent_id)->comment_content) . ‘</p>
<p>’ . trim($comment->comment_author) . ‘ 给您的回应:<br />’
. trim($comment->comment_content) . ‘<br /></p>
<p>您可以点击 <a href=”‘ . htmlspecialchars(get_comment_link($parent_id)) . ‘”>查看回应完整內容</a></p>
<p>欢迎您再度光临 <a href=”‘ . get_option(‘home’) . ‘”>’ . get_option(‘blogname’) . ‘</a></p>
<p>(此邮件由系统自动发出，请勿回复.)</p>
</div>’;
$from = “From: \”” . get_option(‘blogname’) . “\” <$wp_email>”;
$headers = “$from\nContent-Type: text/html; charset=” . get_option(‘blog_charset’) . “\n”;
wp_mail( $to, $subject, $message, $headers );
//echo ‘mail to ‘, $to, ‘<br/> ‘ , $subject, $message; // for testing
}
}
add_action(‘comment_post’, ‘comment_mail_notify’);
// 自动勾选
function add_checkbox() {
echo ‘<input type=”checkbox” name=”comment_mail_notify” id=”comment_mail_notify” value=”comment_mail_notify” checked=”checked” style=”margin-left:0px;” /><label for=”comment_mail_notify”>有人回复时邮件通知我</label>’;
}
add_action(‘comment_form’, ‘add_checkbox’);
第二、用户可选通知
/* 用户选择是否通知*/
function comment_mail_notify($comment_id) {
$admin_notify = ‘1’; // admin 要不要收回复通知 ( ‘1’=要 ; ‘0’=不要 )
$admin_email = get_bloginfo (‘admin_email’); // $admin_email 可改为你指定的 e-mail.
$comment = get_comment($comment_id);
$comment_author_email = trim($comment->comment_author_email);
$parent_id = $comment->comment_parent ? $comment->comment_parent : ”;
global $wpdb;
if ($wpdb->query(“Describe {$wpdb->comments} comment_mail_notify”) == ”)
$wpdb->query(“ALTER TABLE {$wpdb->comments} ADD COLUMN comment_mail_notify TINYINT NOT NULL DEFAULT 0;”);
if (($comment_author_email != $admin_email && isset($_POST[‘comment_mail_notify’])) || ($comment_author_email == $admin_email && $admin_notify == ‘1’))
$wpdb->query(“UPDATE {$wpdb->comments} SET comment_mail_notify=’1′ WHERE comment_ID=’$comment_id'”);
$notify = $parent_id ? get_comment($parent_id)->comment_mail_notify : ‘0’;
$spam_confirmed = $comment->comment_approved;
if ($parent_id != ” && $spam_confirmed != ‘spam’ && $notify == ‘1’) {
$wp_email = ‘no-reply@’ . preg_replace(‘#^www.#’, ”, strtolower($_SERVER[‘SERVER_NAME’])); // e-mail 发出点, no-reply 可改为可用的 e-mail.
$to = trim(get_comment($parent_id)->comment_author_email);
$subject = ‘您在 [‘ . get_option(“blogname”) . ‘] 的留言有了回复’;
$message = ‘
<div style=”background-color:#eef2fa; border:1px solid #d8e3e8; color:#111; padding:0 15px; -moz-border-radius:5px; -webkit-border-radius:5px; -khtml-border-radius:5px;”>
<p>’ . trim(get_comment($parent_id)->comment_author) . ‘, 您好!</p>
<p>您曾在《’ . get_the_title($comment->comment_post_ID) . ‘》的留言:<br />’
. trim(get_comment($parent_id)->comment_content) . ‘</p>
<p>’ . trim($comment->comment_author) . ‘ 给您的回复:<br />’
. trim($comment->comment_content) . ‘<br /></p>
<p>您可以点击查看回复的完整內容</p>
<p>还要再度光临 ‘ . get_option(‘blogname’) . ‘</p>
<p>(此邮件由系统自动发送，请勿回复.)</p>
</div>’;
$from = “From: \”” . get_option(‘blogname’) . “\” <$wp_email>”;
$headers = “$from\nContent-Type: text/html; charset=” . get_option(‘blog_charset’) . “\n”;
wp_mail( $to, $subject, $message, $headers );
}
}
add_action(‘comment_post’, ‘comment_mail_notify’);
/* 自动加勾选栏 */
function add_checkbox() {
echo ‘<input type=”checkbox” name=”comment_mail_notify” id=”comment_mail_notify” value=”comment_mail_notify” checked=”checked” style=”margin-left:20px;” /><label for=”comment_mail_notify”>有人回复时邮件通知我</label>’;
}
add_action(‘comment_form’, ‘add_checkbox’);
需要注意的是，我们需要将当前服务器环境支持MAIL函数才可以实现邮件推送。
