将sql结果包含到php邮件中

我想问一下我发送邮件的脚本中是否缺少了什么，我的查询很好，它显示了结果，我想寻求帮助，了解如何将这些查询结果包含在我将发送的消息中。如果你能给我一个从哪里开始的建议，我将不胜感激。谢谢

    <?php
    $cfg = array(
        'display' => 'gw@mail.com',
        'address' => 'support@mail.com',
        'subject' => 'TEST '
            . date("m/d/t h:i:s A", strtotime('TODAY')) . ' hits',
        'queries' => array(
            "SELECT inbox.src AS 'From Mobile Number', outbox.dst AS 'To Mobile Number', outbox.stamp AS 'Timestamp', inbox.data AS 'Message', outbox.status AS 'Status' FROM mega.outbox LEFT JOIN mega.inbox ON outbox.pid=inbox.pid WHERE outbox.sid=156 && inbox.sid=156 && stamp > NOW() - INTERVAL 3 HOUR",
        ),
    );
    include "/var/xrelay/mysql.php";
    $sql = new database();
    $msg = '';
    foreach( $cfg['queries'] as $i ) {
       $tmp = $sql->read($i, true);
       if (!empty($tmp)) {
          foreach($tmp[0] as $k => $v) $msg .= "$k: $v'r'n";
       }
    }
    foreach( preg_split( '/['s,]+/', $cfg['address'], -1, PREG_SPLIT_NO_EMPTY) as $i ) {
       $sql->write("INSERT INTO mega.emails (sender,recipient,subject,message,stamp) VALUES "
       . "('{$cfg['display']}','$i','{$cfg['subject']}','".$sql->escape($msg)."', NOW());");
    }
    ?>

有什么方法可以进一步改进吗？如果数据库有任何活动，这个邮件程序应该每3小时向收件人发送一次邮件。它将检索最后3小时前的数据，并将结果作为消息。

include "/var/xrelay/mysql.php";
$sql = new database('sql://gateway:xrelay@00.000.000.000/test');
$cfg = array(
   'display' => 'gw@mail.com',
   'address' => 'g@mail.com',
   'subject' => 'MAIL HITS ' . date("m/d/y h:i:s A", strtotime("NOW")) . ' hits',
   );
//define('DEBUG',true);
$result = mysql_query("SELECT outbox.dst, DATE_FORMAT(outbox.stamp,'%b-%d-%Y %h:%i %p')AS 'Stamp', outbox.status FROM mega.outbox LEFT JOIN mega.inbox ON outbox.pid=inbox.pid WHERE outbox.sid=156 && inbox.sid=156 && outbox.stamp > NOW() - INTERVAL 3 HOUR");
$msg='|  Mobile#      |         Timestamp          |  Status  |'r'n';
while($row = mysql_fetch_assoc($result))
  {
   $msg .= "| ". $row['dst'] ." | ". $row['Stamp'] ." | ". $row['status'] ." |'r'n";
  }
$num_rows = mysql_num_rows($result);
echo $msg;
if($num_rows != 0){
foreach( preg_split( '/['s,]+/', $cfg['address'], -1, PREG_SPLIT_NO_EMPTY) as $i ) {
   $sql->write("INSERT INTO mega.emails (sender,recipient,subject,message,stamp) VALUES " . "('{$cfg['display']}','$i','{$cfg['subject']}','". $msg ."', NOW());");
   }
}
?>