Php 创建排行榜

我有，那是我的android应用程序的后端。我想为拥有最多推荐的用户创建一个排行榜。我对这个很陌生，所以我想寻求一些帮助。第一个问题是，我在数据库中没有一行包含一个用户的引用总数。在代码中，按如下方式提取编号：

//============================ Total user referral
function total_user_referral($table, $user_id){
    $this->db->select($user_id);
    $this->db->where('user_referral', $user_id);
    $q = $this->db->get($table);
    return $q->num_rows();

}

完整的user_model.php文件：

<?php
class User_model extends CI_Model {

//============================ Main construct
public function __construct()
{
    parent::__construct();
    // Your own constructor code
}

//============================ Check if username exist or not
function check_username($table, $user_username){
    $q = $this->db->get_where($table, array('user_username' => $user_username));
    if ($q->num_rows() > 0)
        return FALSE;
    return TRUE;
}

//============================ Check if email exist or not
function check_email($table, $user_email){
    $q = $this->db->get_where($table, array('user_email' => $user_email));
    if ($q->num_rows() > 0)
        return FALSE;
    return TRUE;
}

//============================ Check any users exist in the role table
function check_user_exist_in_role($table, $user_role_id){
    $q = $this->db->get_where($table, array('user_role_id' => $user_role_id));
    if ($q->num_rows() > 0)
        return TRUE;
    return FALSE;
}

//============================ Check if any content exist in user
function check_content_exist($table, $user_id){
    $q = $this->db->get_where($table, array('content_user_id' => $user_id));
    if ($q->num_rows() > 0)
        return TRUE;
    return FALSE;
}

//============================ Check if email exist or not
function check_mobile($table, $user_mobile){
    $q = $this->db->get_where($table, array('user_mobile' => $user_mobile));
    if ($q->num_rows() > 0)
        return FALSE;
    return TRUE;
}

//============================ Check if referral ID exist or not
function check_referral($table, $user_referral){
    $q = $this->db->get_where($table, array('user_id' => $user_referral));
    if ($q->num_rows() > 0)
        return TRUE;
    return FALSE;
}

//============================ Authentication user login with user_username OR user_email
function auth_user_information($table, $user_username, $user_password){
    //Login with Username
    $query = $this->db->get_where($table, array('user_username'=>$user_username, 'user_password'=>$user_password));
    if ($query->num_rows() > 0)
        return true;

    else { //Login with Email
        $query = $this->db->get_where($table, array('user_email'=>$user_username, 'user_password'=>$user_password));
        if ($query->num_rows() > 0)
            return true;
        else
            return false;
    }
}

//============================ Authentication user login
function compare_old_new_password($table, $user_id, $old_password){
    $query = $this->db->get_where($table, array('user_id'=>$user_id, 'user_password'=>$old_password));
    if ($query->num_rows() > 0)
        return true;
    else
        return false;
}

//============================ Read user information with user_username OR user_email
function read_user_information($table, $user_username){
    $query = $this->db->get_where($table, array('user_username'=>$user_username));
    if ($query->num_rows() > 0)
        return $query->result();

    else {
        $query = $this->db->get_where($table, array('user_email'=>$user_username));
        if ($query->num_rows() > 0)
            return $query->result();
        else
            return false;
    }

}

//============================ User role
function get_users_list2($table){
    $q = $this->db->query("Select $table.*, user_type_table.user_type_title, user_role_table.user_role_title, device_type_table.device_type_title
                            FROM $table
                            INNER JOIN user_type_table
                            ON user_table.user_type = user_type_table.user_type_id 
                            INNER JOIN user_role_table
                            ON user_table.user_role_id = user_role_table.user_role_id
                            INNER JOIN device_type_table
                            ON user_table.user_device_type_id = device_type_table.device_type_id
                            ORDER BY user_id desc");
    return $q;
}

//============================ Reset password
public function reset_password_process($user_email, $new_user_password)
{
    $data = array(
        'user_password' => $new_user_password
    );
    $this->db->where('user_email', $user_email);
    if ($this->db->update('user_table', $data))
        return TRUE;
    else
        return FALSE;
}

//============================ Get user information with user_id
function get_user_content($table, $user_id){
    $query = $this->db->query("Select $table.*, user_type_table.user_type_title, user_role_table.user_role_title, device_type_table.device_type_title
                            FROM $table
                            INNER JOIN user_type_table
                            ON $table.user_type = user_type_table.user_type_id 
                            INNER JOIN user_role_table
                            ON $table.user_role_id = user_role_table.user_role_id 
                            INNER JOIN device_type_table
                            ON $table.user_device_type_id = device_type_table.device_type_id 
                            WHERE user_id = $user_id;");
    if ($query->num_rows() > 0)
        return $query;

    else{
        //Clear session
        unset(
            $_SESSION['user_id'],
            $_SESSION['user_username'],
            $_SESSION['user_email'],
            $_SESSION['user_mobile'],
            $_SESSION['user_role_id'],
            $_SESSION['user_type']
        );

        $msg = $this->lang->line("Successfully Logout!");
        $this->session->set_flashdata('msg',$msg);
        $this->session->set_flashdata('msgType','success');
        redirect(base_url().'dashboard/Auth');
        $this->db->close();
        die();
    }
}

//============================ Get user image with user_id
function get_user_image($table, $user_id){
    $this->db->select('user_image');
    $query = $this->db->get_where($table, array('user_id'=>$user_id));
        return $query->result()[0];
}

//============================ Get user activity with user_id
function get_user_activity($table, $user_id, $limit){
    $this->db->order_by('activity_id DESC');
    $query = $this->db->get_where($table, array('activity_user_id' => $user_id), $limit);
    return $query;
}

//============================ Total user referral
function total_user_referral($table, $user_id){
    $this->db->select($user_id);
    $this->db->where('user_referral', $user_id);
    $q = $this->db->get($table);
    return $q->num_rows();

}

//============================ Total user games
function total_user_games($table, $user_id){
    $this->db->select($user_id);
    $this->db->where('content_user_id', $user_id);
    $q = $this->db->get($table);
    return $q->num_rows();
}

//============================ User type (Account type)
function get_user_type($table){
    $this->db->order_by('user_type_id ASC');
    return $q = $this->db->get($table);
}

//============================ User role
function get_user_role($table, $user_type_id){
    if(isset($user_type_id))
        $where = "WHERE $table.user_type_id = '$user_type_id'";
    else
        $where = "";
    $q = $this->db->query("Select $table.*, user_type_table.*
                            FROM user_role_table
                            INNER JOIN user_type_table
                            ON user_role_table.user_type_id = user_type_table.user_type_id 
                            $where
                            ORDER BY user_role_id ASC;");
    return $q;
}

//============================ User role for upgrade account
function get_user_role_for_upgrade($table){
    $current_user_role_id = $_SESSION['user_role_id'];
    $q = $this->db->query("Select $table.*
                            FROM $table
                            WHERE (user_type_id = 2) AND (user_role_id != 5) AND (user_role_id != $current_user_role_id)
                            ORDER BY user_role_id ASC;");
    return $q;
}

//============================ Get role from type
public function get_role_from_type($user_type_id)
{
    $this->db->where('user_type_id', $user_type_id);
    $this->db->order_by('user_type_id', 'ASC');
    $query = $this->db->get('user_role_table');
    $select = $this->lang->line("--- Please Select ---");
    $output = '<option disabled>'.$select.'</option>';
    foreach($query->result() as $row)
    {
        $output .= '<option value="'.$row->user_role_id.'">'.$row->user_role_title.'</option>';
    }
    return $output;
}

//============================ Get user information with user_id
function get_user_role_content($table, $user_role_id){
    $query = $this->db->query("Select $table.*
                            FROM $table
                            WHERE user_role_id = $user_role_id;");
    if ($query->num_rows() > 0)
        return $query;
    else
        return false;
}

//============================ Ajax all users count
function all_users_count()
{
    $query = $this->db->get('user_table');
    return $query->num_rows();
}

//============================ Ajax all users list
function all_users($limit,$start,$col,$dir)
{
    $query = $this->db->query("Select user_table.*, user_type_table.user_type_title, user_role_table.user_role_title, device_type_table.device_type_title
                            FROM user_table
                            INNER JOIN user_type_table
                            ON user_table.user_type = user_type_table.user_type_id 
                            INNER JOIN user_role_table
                            ON user_table.user_role_id = user_role_table.user_role_id
                            INNER JOIN device_type_table
                            ON user_table.user_device_type_id = device_type_table.device_type_id
                            ORDER BY $col $dir 
                            LIMIT $start, $limit;");
    //$query = $this->db->limit($limit,$start)->order_by($col,$dir)->get('user_table');
    if($query->num_rows()>0)
        return $query->result();
    else
        return null;
}

//============================ Ajax users search
function users_search($limit,$start,$search,$col,$dir)
{
    /*$query = $this
        ->db
        ->like('user_username',$search)
        ->or_like('user_firstname',$search)
        ->or_like('user_lastname',$search)
        ->or_like('user_email',$search)
        ->limit($limit,$start)
        ->order_by($col,$dir)
        ->get('user_table');*/

    $query = $this->db->query("Select user_table.*, user_type_table.user_type_title, user_role_table.user_role_title, device_type_table.device_type_title
                            FROM user_table
                            INNER JOIN user_type_table
                            ON user_table.user_type = user_type_table.user_type_id 
                            INNER JOIN user_role_table
                            ON user_table.user_role_id = user_role_table.user_role_id
                            INNER JOIN device_type_table
                            ON user_table.user_device_type_id = device_type_table.device_type_id
                            WHERE ((user_username LIKE '%$search%') OR (user_firstname LIKE '%$search%') OR (user_lastname LIKE '%$search%') OR (user_email LIKE '%$search%')
                            OR (user_type_title LIKE '%$search%') OR (user_role_title LIKE '%$search%') OR (device_type_title LIKE '%$search%')) 
                            ORDER BY $col $dir 
                            LIMIT $start, $limit;");

    if($query->num_rows()>0)
        return $query->result();
    else
        return null;
}


//============================ Ajax users count
function users_search_count($search)
{
    $query = $this
        ->db
        ->like('user_username',$search)
        ->or_like('user_firstname',$search)
        ->or_like('user_lastname',$search)
        ->or_like('user_email',$search)
        ->get('user_table');

    return $query->num_rows();
}


//============================ Users activity
function get_all_activity($table, $limit){
    $q = $this->db->query("Select $table.*, user_table.user_username, user_table.user_id
                            FROM $table
                            INNER JOIN user_table
                            ON $table.activity_user_id = user_table.user_id 
                            ORDER BY activity_id DESC
                            LIMIT $limit;");
    return $q;
}


//============================ Get transactions list
function get_transactions($table, $user_id)
{
    //Check Staff or User
    if($user_id == 'staff')
    {
        $q = $this->db->query("Select $table.*, gateway_table.gateway_name, user_table.user_id, user_table.user_firstname, user_table.user_lastname
                            FROM $table
                            INNER JOIN gateway_table
                            ON $table.transaction_gateway = gateway_table.gateway_id
                            INNER JOIN user_table
                            ON $table.transaction_user_id = user_table.user_id
                            ORDER BY transaction_id DESC;");
    }else{
        $q = $this->db->query("Select $table.*, gateway_table.gateway_name, user_table.user_id, user_table.user_firstname, user_table.user_lastname
                            FROM $table
                            INNER JOIN gateway_table
                            ON $table.transaction_gateway = gateway_table.gateway_id
                            INNER JOIN user_table
                            ON $table.transaction_user_id = user_table.user_id
                            WHERE transaction_user_id = $user_id
                            ORDER BY transaction_id DESC;");
    }

    return $q;
}


//============================ Get transaction content with transaction_id
function get_transaction_content($table, $transaction_id)
{
    $query = $this->db->query("Select $table.*, user_table.user_firstname, user_table.user_lastname, user_table.user_id, gateway_table.gateway_name
                            FROM $table
                            INNER JOIN user_table
                            ON $table.transaction_user_id = user_table.user_id 
                            INNER JOIN gateway_table
                            ON $table.transaction_gateway = gateway_table.gateway_id 
                            WHERE transaction_id = $transaction_id;");
    if ($query->num_rows() > 0)
        return $query;
    else
        return false;
}


//============================ Get user credit
function get_user_credit($table, $user_id){
    $query = $this->db->query("Select $table.user_credit
                            FROM $table
                            WHERE user_id = $user_id;");
    return $query;

}


//============================ Update user credit
function update_user_credit($table, $amount, $user_id, $type){
    /*
     * Type +: Add Funds
     * Type -: Decrease Funds
     */
    if($type == "+") {
        $this->db->query("UPDATE $table SET user_credit = user_credit + $amount WHERE user_id = '$user_id'");

    }elseif($type == "-") {
        $this->db->query("UPDATE $table SET user_credit = user_credit - $amount WHERE user_id = '$user_id'");
    }
}


//============================ Comments count
public function get_total_comments_count($table, $keyword, $comment_status) {

    $where = "WHERE comment_status = '$comment_status'";
    if($keyword != "")
        $where = "WHERE comment_text LIKE '%$keyword%'";

    $q = $this->db->query("Select $table.*
                            FROM $table
                            $where
                            ;");
    return $q->num_rows();
}


//============================ Comments List
function get_comments($table, $keyword, $comment_status, $limit, $start)
{
    $where = "WHERE comment_status = '$comment_status'";
    if($keyword != "")
        $where = "WHERE comment_text LIKE '%$keyword%'";

    $q = $this->db->query("Select $table.*, user_table.user_username, user_table.user_id, device_type_table.device_type_title, content_table.content_title, content_table.content_id
                            FROM $table
                            INNER JOIN user_table
                            ON $table.comment_user_id = user_table.user_id 
                            INNER JOIN device_type_table
                            ON $table.comment_device_type_id = device_type_table.device_type_id 
                            INNER JOIN content_table
                            ON $table.comment_content_id = content_table.content_id 
                            $where
                            ORDER BY comment_id DESC
                            LIMIT $limit OFFSET $start;");
    return $q;
}

//============================ Get one comment
function get_one_comment($table, $comment_id)
{
    $q = $this->db->query("Select $table.*, user_table.user_username, user_table.user_id, device_type_table.device_type_title, content_table.content_title, content_table.content_id
                        FROM $table
                        INNER JOIN user_table
                        ON $table.comment_user_id = user_table.user_id 
                        INNER JOIN device_type_table
                        ON $table.comment_device_type_id = device_type_table.device_type_id 
                        INNER JOIN content_table
                        ON $table.comment_content_id = content_table.content_id 
                        WHERE comment_id = '$comment_id'
                        ;");
    if($q->num_rows() > 0)
        return $q->result()[0];
    else
        redirect(base_url()."dashboard/User/comments_list");
}

---

我不太擅长CodeIgniter。
我审阅了文件。（）

你应该使用

$builder->countAll();

选择表、列和位置后。
问候

编辑：我不知道你正在使用CodeIgniter3。在我回答之后，你已经改变了你的问题内容。
因此，您可以使用本指南：
我的新答案是：

$this->db->from($table);
$this->db->like('user_referral', $user_id); 
$query = $this->db->get();
$rowcount = $query->num_rows();

您提供的生成器类和链接是针对Codeigniter 4的。这个问题是针对Codeigniter 3的。我安排了我的答案。这个问题的最初版本并没有透露太多。嗨，非常感谢你的帮助。我已经把那些台词写成剧本了。因为在仪表板中，用户可以看到refferals的数量。但脚本没有将此结果插入数据库。在用户表中没有要存储的行。为了创建一个排行榜，我需要这个结果在数据库…能够提取后在排行榜。我在数据库表中手动创建了一个新行：user_table…并命名为total_refferals…现在我使用脚本在该数据库行中插入该行计数的结果…之后我将在排行榜中提取…谢谢