PHP不退出循环

我试图根据时间从php返回一些数据。例如，如果当前时间大于发布时间，那么只有发布数据应该发送给用户，否则他应该被告知这是它的计划。问题是，即使满足条件，它仍然执行循环并给我"成功"的结果。有办法克服吗?

$sql = "Select posts.post_title,posts.author_name,posts.publish_date,posts.post_content,comments.name,comments.comment,comments.time_posted "
        . "from posts left join comments "
        . "on posts.id=comments.post_id "
        . "where posts.id=$data->id "
        . "LIMIT 5";
    $result = mysql_query($sql) or trigger_error(mysql_error() . $sql);
    $count = mysql_num_rows($result);
    $index = 0;
    if ($count >= 1) {
        $temp = array();
        while ($row = mysql_fetch_assoc($result)) {
            if (strtotime($data->now) > strtotime($row['publish_date'])) {
                if ($index == 0) {
                    $results[$index]['post_title'] = $row['post_title'];
                    $results[$index]['author_name'] = $row['author_name'];
                    $results[$index]['publish_date'] = $row['publish_date'];
                    $results[$index]['post_content'] = $row['post_content'];
                    $temp[$index]['name'] = $row['name'];
                    $temp[$index]['comment'] = $row['comment'];
                    $temp[$index]['time_posted'] = $row['time_posted'];
                } else {
                    $temp[$index]['name'] = $row['name'];
                    $temp[$index]['comment'] = $row['comment'];
                    $temp[$index]['time_posted'] = $row['time_posted'];
                }
                $index++;
            } else {
                $response['status'] = 'Scheduled';
                $response['message'] = 'Data present';
                break;
            }

        }
        $results[0]['comments'] = $temp;
        $response['status'] = 'Success';
        $response['message'] = 'Data present';
        $response['results'] = $results;
    } else {
        $response['status'] = '404';
        $response['message'] = 'Post does not exist';
    }
    echo json_encode($response);