function upgrade_wp_tables()
 {
     global $xoopsDB;
     require_once dirname(dirname(__FILE__)) . '/wp-config.php';
     if ($xoopsDB->query("SHOW COLUMNS FROM " . wp_table('postmeta')) == false) {
         $sql1 = "CREATE TABLE " . wp_table('postmeta') . " (\n\t\t\t\t\t\tmeta_id int(11) NOT NULL auto_increment,\n\t\t\t\t\t\tpost_id int(11) NOT NULL default '0',\n\t\t\t\t\t\tmeta_key varchar(255) default NULL,\n\t\t\t\t\t\tmeta_value text,\n\t\t\t\t\t\tPRIMARY KEY\t (meta_id),\n\t\t\t\t\t\tKEY post_id (post_id),\n\t\t\t\t\t\tKEY meta_key (meta_key)\n\t\t\t\t\t)";
         $xoopsDB->query($sql1);
         $GLOBALS['msgs'][] = "TABLE " . wp_table('postmeta') . " is added.";
     }
     if (!$xoopsDB->getRowsNum($xoopsDB->query("SHOW COLUMNS FROM " . wp_table('comments') . " LIKE 'comment_type'"))) {
         $sql1 = "ALTER TABLE " . wp_table('comments') . " ADD (\n\t\t\t\t\t\tcomment_agent varchar(255) NOT NULL default '',\n\t\t\t\t\t\tcomment_type varchar(20) NOT NULL default '',\n\t\t\t\t\t\tcomment_parent int(11) NOT NULL default '0',\n\t\t\t\t\t\tuser_id int(11) NOT NULL default '0'\n\t\t\t\t\t)";
         $xoopsDB->query($sql1);
         $GLOBALS['msgs'][] = "TABLE " . wp_table('comments') . " is modified.";
     }
     # --------------------------------------------------------
     if ($xoopsDB->query("DELETE FROM " . wp_table('options') . " WHERE option_id =7 AND option_name ='new_users_can_blog'")) {
         $xoopsDB->query("DELETE FROM " . wp_table('optiongroup_options') . " WHERE group_id=6 AND option_id =7");
     }
     if ($xoopsDB->query("DELETE FROM " . wp_table('options') . " WHERE option_id =8 AND option_name ='users_can_register'")) {
         $xoopsDB->query("DELETE FROM " . wp_table('optiongroup_options') . " WHERE group_id=6 AND option_id =8");
     }
     if ($xoopsDB->query("DELETE FROM " . wp_table('options') . " WHERE option_id =91 AND option_name ='gzipcompression'")) {
         $xoopsDB->query("DELETE FROM " . wp_table('optiongroup_options') . " WHERE group_id=6 AND option_id =91");
     }
     if (!get_settings('use_comment_preview')) {
         add_option('use_comment_preview', '0', 2, "Display Preview Screen after comment posting.", 2, 8);
     }
     if (!get_settings('active_plugins')) {
         add_option('active_plugins', "\n");
     }
 }

 function timesince()
 {
     global $post;
     $older_date = abs(strtotime($post->post_date_gmt . " GMT"));
     $newer_date = time();
     $chunks = array(array(60 * 60 * 24 * 365, 'year'), array(60 * 60 * 24 * 30, 'month'), array(60 * 60 * 24 * 7, 'week'), array(60 * 60 * 24, 'day'), array(60 * 60, 'hour'), array(60, 'minute'));
     $newer_date = $newer_date == false ? time() + 60 * 60 * get_settings("gmt_offset") : $newer_date;
     $since = $newer_date - $older_date;
     for ($i = 0, $j = count($chunks); $i < $j; $i++) {
         $seconds = $chunks[$i][0];
         $name = $chunks[$i][1];
         if (($count = floor($since / $seconds)) != 0) {
             break;
         }
     }
     $output = $count == 1 ? '1 ' . $name : "{$count} {$name}s";
     if ($i + 1 < $j) {
         $seconds2 = $chunks[$i + 1][0];
         $name2 = $chunks[$i + 1][1];
         if (($count2 = floor(($since - $seconds * $count) / $seconds2)) != 0) {
             $output .= $count2 == 1 ? ', 1 ' . $name2 : ", {$count2} {$name2}s";
         }
     }
     echo $output;
 }

function wptouch_time_since($older_date, $newer_date = false)
{
    // array of time period chunks
    $chunks = array(array(60 * 60 * 24 * 30, __('mo', 'wptouch')), array(60 * 60 * 24 * 7, __('wk', 'wptouch')), array(60 * 60 * 24, __('day', 'wptouch')), array(60 * 60, __('hr', 'wptouch')), array(60, __('min', 'wptouch')));
    $newer_date = $newer_date == false ? time() + 60 * 60 * get_settings("gmt_offset") : $newer_date;
    // difference in seconds
    $since = $newer_date - $older_date;
    for ($i = 0, $j = count($chunks); $i < $j; $i++) {
        $seconds = $chunks[$i][0];
        $name = $chunks[$i][1];
        // finding the biggest chunk (if the chunk fits, break)
        if (($count = floor($since / $seconds)) != 0) {
            break;
        }
    }
    // set output var
    $output = $count == 1 ? '1 ' . $name : "{$count} {$name}s";
    // step two: the second chunk
    if ($i + 1 < $j) {
        $seconds2 = $chunks[$i + 1][0];
        $name2 = $chunks[$i + 1][1];
        if (($count2 = floor(($since - $seconds * $count) / $seconds2)) != 0) {
            // add to output var
            $output .= $count2 == 1 ? ', 1 ' . $name2 : ", {$count2} {$name2}s";
        }
    }
    return $output;
}

/**
* @desc Output of king widget css and js in admin head area. Is included in every king widget
* @author Georg Leciejewski
*/
function widget_king_admin_head()
{
    //$js_dir = str_replace(ABSPATH, get_settings('siteurl').'/', dirname(__FILE__)) . '/js';
    $js_dir = get_settings('siteurl') . '/wp-content/plugins/king-includes/js/';
    $css_dir = get_settings('siteurl') . '/wp-content/plugins/king-includes/css/';
    if (strpos($_SERVER['REQUEST_URI'], 'themes.php') !== false || strpos($_SERVER['REQUEST_URI'], 'king-framework.php') !== false) {
        # only include in themes area
        echo '<link rel="stylesheet" href="' . $css_dir . 'king_widget.css" type="text/css" media="screen" />' . "\n";
        echo '<script type="text/javascript" src="' . $js_dir . 'jquery.js"></script>' . "\n";
        echo '<script type="text/javascript" src="' . $js_dir . 'jquery_plugins.js"></script>' . "\n";
        echo '<script type="text/javascript" src="' . $js_dir . 'tooltip.js"></script>' . "\n";
        echo '<script type="text/javascript" src="' . $js_dir . 'king_widgets.js"></script>' . "\n";
        load_plugin_textdomain('widgetKing', '/wp-content/plugins/king-includes/lang');
    } elseif (strpos($_SERVER['REQUEST_URI'], 'post.php') !== false) {
        # only include in post article temp. disabled since incompatibilities
        # and new methods to add js to head in wp2.1
        //		echo '<link rel="stylesheet" href="'. $css_dir.'king_admin.css" type="text/css" media="screen" />'."\n";
        //		echo '<script type="text/javascript" src="'.$js_dir.'jquery.js"></script>'."\n";
        //		echo '<script type="text/javascript" src="'.$js_dir.'jquery_plugins.js"></script>'."\n";
        //		echo '<script type="text/javascript" src="'.$js_dir.'king_admin.js"></script>'."\n";
    }
    if (strpos($_SERVER['REQUEST_URI'], 'plugins.php') !== false) {
        echo '<script type="text/javascript" src="' . $js_dir . 'prototype-1.4.0.js"></script>' . "\n";
        load_plugin_textdomain('widgetKing', '/wp-content/plugins/king-includes/lang');
    }
}

 /**
  *
  */
 function __construct()
 {
     $apiKey = get_settings('site_settings', 'gerencianet_apikey');
     $apiSecret = get_settings('site_settings', 'gerencianet_apisecret');
     $options = ['client_id' => $apiKey, 'client_secret' => $apiSecret, 'sandbox' => ENVIRONMENT == 'development' ? true : false];
     $this->api = new Gerencianet($options);
 }

 function wp_mail($to, $subject, $message, $headers = '')
 {
     if ($headers == '') {
         $headers = "MIME-Version: 1.0\n" . "From: " . get_settings('admin_email') . "\n" . "Content-Type: text/plain; charset=\"" . get_settings('blog_charset') . "\"\n";
     }
     return @mail($to, $subject, $message, $headers);
 }

function etruel_AdServe_Bannersave($id)
{
    global $wpdb, $table_prefix;
    $table_name = $wpdb->prefix . "adserve";
    $scriptcode = isset($_POST['scriptcode']) ? 1 : 0;
    $src = !empty($_POST['src']) ? $_POST['src'] : '';
    $width = !empty($_POST['width']) ? $_POST['width'] : null;
    $height = !empty($_POST['height']) ? $_POST['height'] : null;
    if ($scriptcode) {
        $ok = true;
    } else {
        $ext = substr($src, strlen($src) - 3, 3);
        if ($ext !== 'swf' || $width != null && $height !== null) {
            $ok = true;
        } else {
            $ok = false;
        }
    }
    if ($ok) {
        $height = is_null($height) ? 'null' : $height;
        $width = is_null($width) ? $height : $width;
        if ($id > 0) {
            // update
            $query = "  UPDATE {$table_name}\n                        SET\n                            title\t\t='" . $_POST['title'] . "',\n                            scriptcode \t= " . $scriptcode . ",\n                            url\t\t\t='" . $_POST['url'] . "',\n                            src\t\t\t='" . urlencode($src) . "',\n                            user\t\t='" . $_POST['user'] . "',\n                            email\t\t='" . $_POST['email'] . "',\n                            keywords\t='" . $_POST['keywords'] . "',\n                            width\t\t= " . $width . ",\n                            height\t\t= " . $height . "\n                        WHERE id={$id}";
        } else {
            // insert
            $query = "  INSERT INTO {$table_name}" . " (title, scriptcode, url, src, email, keywords, impressions, clicks, width, height) " . "VALUES ('" . $_POST['title'] . "', '" . $scriptcode . "', '" . $_POST['url'] . "', '" . urlencode($src) . "', '" . $_POST['email'] . "', '" . $_POST['keywords'] . "',0, 0, {$width}, {$height})";
        }
        //echo $query."<br>";
        $wpdb->query($query);
    }
    return get_settings('siteurl') . "/wp-admin/admin.php?page=admanage";
}

function mdv_recent_posts($no_posts = 10, $before = '<li>', $after = '</li>', $hide_pass_post = true, $skip_posts = 0, $show_excerpts = false)
{
    global $wpdb;
    $time_difference = get_settings('gmt_offset');
    $now = gmdate("Y-m-d H:i:s", time());
    $request = "SELECT ID, post_title, post_excerpt FROM {$wpdb->posts} WHERE post_status = 'publish' ";
    if ($hide_pass_post) {
        $request .= "AND post_password ='' ";
    }
    $request .= "AND post_date_gmt < '{$now}' ORDER BY post_date DESC LIMIT {$skip_posts}, {$no_posts}";
    $posts = $wpdb->get_results($request);
    $output = '';
    if ($posts) {
        foreach ($posts as $post) {
            $post_title = stripslashes($post->post_title);
            $permalink = get_permalink($post->ID);
            $output .= $before . '<a href="' . $permalink . '" rel="bookmark" title="Permanent Link: ' . htmlspecialchars($post_title, ENT_COMPAT) . '">' . htmlspecialchars($post_title) . '</a>';
            if ($show_excerpts) {
                $post_excerpt = stripslashes($post->post_excerpt);
                $output .= '<br />' . $post_excerpt;
            }
            $output .= $after;
        }
    } else {
        $output .= $before . "None found" . $after;
    }
    echo $output;
}

function AGCZone_Settings()
{
    echo '<div class="wrap">';
    echo '<h2>AGCZone Plugins Settings</h2>';
    echo '<form method="post" action="options.php">';
    echo settings_fields('az-settings-group');
    echo get_settings('az-settings-group');
    echo '<table class="form-table">';
    echo '<tr valign="top">';
    echo '<th scope="row">Your Amazon Affiliate ID</th>';
    echo '<td><input type="text" name="affid" value="' . get_option('affid') . '" /></td>';
    echo '</tr>';
    echo '<tr valign="top">';
    echo '<th scope="row">Your Amazon API Key</th>';
    echo '<td><input type="text" name="apikey" value="' . get_option('apikey') . '" /></td>';
    echo '</tr>';
    echo '<tr valign="top">';
    echo '<th scope="row">Your Amazon Secret Key</th>';
    echo '<td><input type="text" name="secret_key" value="' . get_option('secret_key') . '" /></td>';
    echo '</tr>';
    echo '<tr valign="top">';
    echo '<th scope="row">Amazon Country</th>';
    echo '<td><input type="text" name="region" value="' . get_option('region') . '" /></td>';
    echo '</tr>';
    echo '<tr valign="top">';
    echo '<th scope="row">Sets Category</th>';
    echo '<td><input type="text" name="department" value="' . get_option('department') . '" /></td>';
    echo '</tr>';
    echo '</table>';
    echo submit_button();
    echo '</form>';
    echo '</div>';
}

 public static function ing_recent_posts($no_posts = 8, $before = '<li>', $after = "</li>\n", $hide_pass_post = true, $skip_posts = 0, $type = 'post')
 {
     global $wpdb;
     $time_difference = get_settings('gmt_offset');
     $now = gmdate("Y-m-d H:i:s", time());
     $request = "SELECT ID, post_title, post_content, DATE_FORMAT(post_date_gmt, '%M %d %Y') as my_date FROM {$wpdb->posts} WHERE post_status = 'publish'  ";
     if ($hide_pass_post) {
         $request .= "AND post_password ='' ";
     }
     $request .= "AND post_type='{$type}' ";
     $request .= "ORDER BY post_date DESC LIMIT {$skip_posts}, {$no_posts}";
     $posts = $wpdb->get_results($request);
     $output = '';
     if ($posts) {
         foreach ($posts as $post) {
             $post_title = stripslashes($post->post_title);
             $permalink = get_permalink($post->ID);
             $content = stripslashes($post->post_content);
             $stripedcontent = strip_tags($content);
             $shortexcerpt = $this->ing_truncate($stripedcontent, 90);
             $output .= $before;
             $output .= '<span class="shortexcerpt">' . $shortexcerpt . '</span>';
             $output .= '<br /><span class="postdate">' . $post->my_date . '</span> - by <span class="name">' . htmlspecialchars($post_title) . '</span> - <a href="' . $permalink . '" rel="bookmark" class="postlink" title="' . htmlspecialchars($post_title, ENT_COMPAT) . '">Read Post</a> ';
             //$output .= '<a href="' . $permalink . '" rel="bookmark" title="' . htmlspecialchars($post_title, ENT_COMPAT) . '">' . htmlspecialchars($post_title). '</a>';
             $output .= $after;
         }
     } else {
         $output .= $before . "Sorry, No Recent Stories!" . $after;
     }
     return $output;
 }

 public static function get_news_settings()
 {
     if (empty(self::$news_settings)) {
         self::$news_settings = get_settings("news");
     }
     return self::$news_settings;
 }

function wpbl_notify($comment_id, $reason, $harvest)
{
    global $wpdb, $wp_id, $url, $email, $comment, $user_ip, $comment_post_ID, $author, $tableposts;
    $tableposts = $wpdb->posts[$wp_id];
    $sql = "SELECT * FROM {$tableposts} WHERE ID='{$comment_post_ID}' LIMIT 1";
    $post = $wpdb->get_row($sql);
    if (!empty($user_ip)) {
        $comment_author_domain = gethostbyaddr($user_ip);
    } else {
        $comment_author_domain = '';
    }
    // create the e-mail body
    $notify_message = "A new comment on post #{$comment_post_ID} \"" . stripslashes($post->post_title) . "\" has been automatically deleted by the WPBlacklist plugin.\r\n\r\n";
    $notify_message .= "Author : {$author} (IP: {$user_ip} , {$comment_author_domain})\r\n";
    $notify_message .= "E-mail : {$email}\r\n";
    $notify_message .= "URL    : {$url}\r\n";
    $notify_message .= "Whois  : http://ws.arin.net/cgi-bin/whois.pl?queryinput={$user_ip}\r\n";
    $notify_message .= "Comment:\r\n" . stripslashes($comment) . "\r\n\r\n";
    $notify_message .= "Triggered by : {$reason}\r\n\r\n";
    // add harvested info - if there is any
    if (!empty($harvest)) {
        $notify_message .= "Harvested the following information:\r\n" . stripslashes($harvest);
    }
    // e-mail header
    $subject = '[' . stripslashes(get_settings('blogname')) . '] Automatically deleted: "' . stripslashes($post->post_title) . '"';
    $admin_email = get_settings("admin_email");
    $from = "From: {$admin_email}";
    // send e-mail
    if (function_exists('mb_send_mail')) {
        mb_send_mail($admin_email, $subject, $notify_message, $from);
    } else {
        @mail($admin_email, $subject, $notify_message, $from);
    }
    return true;
}

function bm_custom_login()
{
    // default wordpress mu plugin path
    $pluginPath = "/wp-content/mu-plugins/";
    // change this to wordpress mu version that has the new login design
    $versionCheck = 999;
    // is it wordpress mu or wordpress normal?
    if (!is_dir($pluginPath)) {
        $pluginPath = "/wp-content/plugins/";
        $versionCheck = 2.5;
    }
    $themeVersions = array(array('min' => 0, 'max' => 2.5, 'css' => '/bm-custom-login.css'), array('min' => 2.5, 'max' => 2.7, 'css' => '/bm-custom-login-2.css'), array('min' => 2.7, 'max' => 5, 'css' => '/bm-custom-login-3.css'));
    // full plugin path
    $pluginUrl = get_settings('siteurl') . $pluginPath . plugin_basename(dirname(__FILE__));
    // check which version of wp is being used
    $blogVersion = substr(get_bloginfo('version'), 0, 3);
    // split style sheets based upon current wp version
    foreach ($themeVersions as $version) {
        if ($blogVersion >= $version['min'] && $blogVersion < $version['max']) {
            $pluginUrl .= $version['css'];
            break;
        }
    }
    echo '<link rel="stylesheet" type="text/css" href="' . $pluginUrl . '" />';
}

function check_option($opt)
{
    $settings = get_settings('bas_options');
    if (in_array($opt, $settings)) {
        echo ' checked="checked"';
    }
}

function pg_action_init()
{
    global $pg_options;
    include 'js/atatari.php';
    load_plugin_textdomain('platesgenerator', false, dirname(plugin_basename(__FILE__)) . '/languages/');
    $pg_options = array('your_reg_caption' => __('your_reg_caption', 'platesgenerator'), 'your_reg_description' => __('your_reg_description', 'platesgenerator'), 'plate_size_caption' => __('plate_size_caption', 'platesgenerator'), 'text_style_caption' => __('text_style_caption', 'platesgenerator'), 'badge_caption' => __('badge_caption', 'platesgenerator'), 'border_caption' => __('border_caption', 'platesgenerator'), 'slogan_caption' => __('slogan_caption', 'platesgenerator'), 'your_mail' => get_settings('admin_email'));
}

function postie_loadjs_admin_head()
{
    $plugindir = get_settings('home') . '/wp-content/plugins/' . dirname(plugin_basename(__FILE__));
    wp_enqueue_script('loadjs', $plugindir . '/js/simpleTabs.jquery.js');
    echo '<link type="text/css" rel="stylesheet" href="' . get_bloginfo('url') . '/wp-content/plugins/postie/css/style.css" />' . "\n";
    echo '<link type="text/css" rel="stylesheet" href="' . get_bloginfo('url') . '/wp-content/plugins/postie/css/simpleTabs.css" />' . "\n";
}

function is_referer_search_engine($engine = 'google')
{
    $siteurl = get_settings('home');
    $referer = urldecode($_SERVER['HTTP_REFERER']);
    //echo "referer is: $referer<br />";
    if (!$engine) {
        return 0;
    }
    switch ($engine) {
        case 'google':
            if (preg_match('|^http://(www)?\\.?google.*|i', $referer)) {
                return 1;
            }
            break;
        case 'lycos':
            if (preg_match('|^http://search\\.lycos.*|i', $referer)) {
                return 1;
            }
            break;
        case 'yahoo':
            if (preg_match('|^http://search\\.yahoo.*|i', $referer)) {
                return 1;
            }
            break;
        case 'wordpress':
            if (preg_match("#^{$siteurl}#i", $referer)) {
                return 1;
            }
            break;
    }
    return 0;
}

function time_since($older_date, $newer_date = false)
{
    // array of time period chunks
    $chunks = array(array(60 * 60 * 24 * 365, 'year'), array(60 * 60 * 24 * 30, 'month'), array(60 * 60 * 24 * 7, 'week'), array(60 * 60 * 24, 'day'), array(60 * 60, 'hour'), array(60, 'minute'));
    // $newer_date will equal false if we want to know the time elapsed between a date and the current time
    // $newer_date will have a value if we want to work out time elapsed between two known dates
    $newer_date = $newer_date == false ? time() + 60 * 60 * get_settings("gmt_offset") : $newer_date;
    // difference in seconds
    $since = $newer_date - $older_date;
    // we only want to output two chunks of time here, eg:
    // x years, xx months
    // x days, xx hours
    // so there's only two bits of calculation below:
    // step one: the first chunk
    for ($i = 0, $j = count($chunks); $i < $j; $i++) {
        $seconds = $chunks[$i][0];
        $name = $chunks[$i][1];
        // finding the biggest chunk (if the chunk fits, break)
        if (($count = floor($since / $seconds)) != 0) {
            break;
        }
    }
    // set output var
    $output = $count == 1 ? '1 ' . $name : "{$count} {$name}s";
    // step two: the second chunk
    if ($i + 1 < $j) {
        $seconds2 = $chunks[$i + 1][0];
        $name2 = $chunks[$i + 1][1];
        if (($count2 = floor(($since - $seconds * $count) / $seconds2)) != 0) {
            // add to output var
            $output .= $count2 == 1 ? ', 1 ' . $name2 : ", {$count2} {$name2}s";
        }
    }
    return $output;
}

/**
* Better display of avatars in comments
* Should only be used in comment sections (may update in future)
* Checks for false empty commenter URLs 'http://' w/registered users
* Adds the class 'photo' to the image
* Adds a call to 'images/trackback.jpg' for trackbacks
* Adds a call to 'images/pingback.jpg' for pingbacks
*
* Filters should only return a string for an image URL for the avatar with class $avatar
* They should not get the avatar as this is done after the filter
*
* @since 0.2
* @filter
*/
function comicpress_avatar()
{
    global $comment;
    $url = get_comment_author_url();
    $comment_type = get_comment_type();
    if (get_settings('avatar_default')) {
        $avatar = get_settings('avatar_default');
    }
    //	$avatar = apply_filters('comicpress_avatar', $avatar);
    if ($comment_type != 'pingback' && $comment_type != 'trackback') {
        echo '<div class="comment-avatar">';
        if ($url == true && $url != 'http://') {
            echo '<a href="' . $url . '" rel="external nofollow" title="' . wp_specialchars(get_comment_author(), 1) . '">';
        }
        $id_or_email = get_comment_author_email();
        if (empty($id_or_email)) {
            $id_or_email = get_comment_author();
        }
        if (function_exists('comicpress_get_avatar') && $comment_type != 'pingback' && $comment_type != 'trackback') {
            echo str_replace("alt='", "alt='" . wp_specialchars(get_comment_author(), 1) . "' title='" . wp_specialchars(get_comment_author(), 1), comicpress_get_avatar($id_or_email, 64));
        } else {
            echo '<img src="' . get_template_directory_uri() . '/' . $avatar . '" class="avatar photo" />';
        }
        if ($url == true && $url != 'http://') {
            echo '</a>';
        }
        echo '</div>';
    }
}

function email_back($id)
{
    global $wpdb, $email_send_comment;
    $reply_id = mysql_escape_string($_REQUEST['comment_reply_ID']);
    $post_id = mysql_escape_string($_REQUEST['comment_post_ID']);
    if ($reply_id == 0 || $_REQUEST["email"] != get_settings('admin_email') && !isset($_REQUEST['comment_email_back'])) {
        return;
    }
    $comment = $wpdb->get_results("SELECT * FROM {$wpdb->comments} WHERE comment_ID='{$id}' LIMIT 0, 1");
    $reply_comment = $wpdb->get_results("SELECT * FROM {$wpdb->comments} WHERE comment_ID='{$reply_id}' LIMIT 0, 1");
    $post = $wpdb->get_results("SELECT * FROM {$wpdb->posts} WHERE ID='{$post_id}' LIMIT 0, 1");
    $comment = $comment[0];
    $reply_comment = $reply_comment[0];
    $post = $post[0];
    $title = $post->post_title;
    $author = $reply_comment->comment_author;
    $url = get_permalink($post_id);
    $to = $reply_comment->comment_author_email;
    if ($to == "") {
        return;
    }
    $subject = "The author replied your comment at [" . get_bloginfo() . "]'" . $title;
    $date = mysql2date('Y.m.d H:i', $reply_comment->comment_date);
    $message = "\r\n\t<div>\r\n\t\t<p>Dear {$author}:<p>\r\n\t\t<p>{$comment->comment_content}</p>\r\n\t\t<div style='color:grey;'><small>{$date}, your comment at " . get_bloginfo() . "<a href='{$url}#comment-{$id}'>{$title}</a>: </small>\r\n\t\t\t<blockquote>\r\n\t\t\t\t<p>{$reply_comment->comment_content}</p>\r\n\t\t\t</blockquote>\r\n\t\t</div>\r\n\t</div>";
    // strip out some chars that might cause issues, and assemble vars
    $site_name = get_bloginfo();
    $site_email = get_settings('admin_email');
    $charset = get_settings('blog_charset');
    $headers = "From: \"{$site_name}\" <{$site_email}>\n";
    $headers .= "MIME-Version: 1.0\n";
    $headers .= "Content-Type: text/html; charset=\"{$charset}\"\n";
    $email_send_comment = "Email notification has sent to " . $to . " with subject '" . $subject . "'";
    return wp_mail($to, $subject, $message, $headers);
}