Codeigniter 中的变量问题

Question

尝试修复我在某些代码中遇到的错误。

我尝试编辑模型，但没有任何效果。还编辑了控制器，更新了数据库，并确保某些文件夹位于父目录中。试图弄清楚如何解决这个错误。如果有人可以提供帮助，将不胜感激！！！

查看：

<?php  
              if(file_exists('/assets/images/'.$user_data[0]->profile_pic) && isset($user_data[0]->profile_pic)){
              $profile_pic = $user_data[0]->profile_pic;
              }else{
              $profile_pic = 'user.png';}?>
              <center> <img class="thumb-image setpropileam" src="<?php echo base_url();?>/assets/images/<?php echo isset($profile_pic)?$profile_pic:'user.png';?>" alt="User profile picture"></center>

型号：

<?php
class User_model extends CI_Model {       
    function __construct(){            
        parent::__construct();
        $this->user_id =isset($this->session->get_userdata()['user_details'][0]->id)?$this->session->get_userdata()['user_details'][0]->users_id:'1';
    }

    /**
      * This function is used authenticate user at login
      */
    function auth_user() {
        $email = $this->input->post('email');
        $password = $this->input->post('password');
        $this->db->where("is_deleted='0' AND (name='$email' OR email='$email')");
        $result = $this->db->get('users')->result();
        if(!empty($result)){       
            if (password_verify($password, $result[0]->password)) {       
                if($result[0]->status != 'active') {
                    return 'not_varified';
                }
                return $result;                    
            }
            else {             
                return false;
            }
        } else {
            return false;
        }
    }

    /**
     * This function is used to delete user
     * @param: $id - id of user table
     */
    function delete($id='') {
        $this->db->where('users_id', $id);  
        $this->db->delete('users'); 
    }

    /**
      * This function is used to load view of reset password and varify user too 
      */
    function mail_varify() {    
        $ucode = $this->input->get('code');     
        $this->db->select('email as e_mail');        
        $this->db->from('users');
        $this->db->where('var_key',$ucode);
        $query = $this->db->get('cultured_codeignite');     
        $result = $query->row();   
        if(!empty($result->e_mail)){      
            return $result->e_mail;         
        }else{     
            return false;
        }
    }


    /**
      * This function is used Reset password  
      */
    function ResetPpassword(){
        $email = $this->input->post('email');
        if($this->input->post('password_confirmation') == $this->input->post('password')){
            $npass = password_hash($this->input->post('password'), PASSWORD_DEFAULT);
            $data['password'] = $npass;
            $data['var_key'] = '';
            return $this->db->update('users',$data, "email = '$email'");
        }
    }

    /**
      * This function is used to select data form table  
      */
    function get_data_by($tableName='users', $value='', $colum='',$condition='') {  
        if((!empty($value)) && (!empty($colum))) { 
            $this->db->where($colum, $value);
        }
        $this->db->select('*');
        $this->db->from($tableName);
        $query = $this->db->get('cultured_codeignite');
        return $query->result();
    }

    /**
      * This function is used to check user is alredy exist or not  
      */
    function check_exists($table='', $colom='',$colomValue=''){
        $this->db->where($colom, $colomValue);
        $res = $this->db->get($table)->row();
        if(!empty($res)){ return false;} else{ return true;}
    }

    /**
      * This function is used to get users detail  
      */
    function get_users($userID = '') {
        $this->db->where('is_deleted', '0');                  
        if(isset($userID) && $userID !='') {
            $this->db->where('users_id', $userID); 
        } else if($this->session->userdata('user_details')[0]->user_type == 'admin') {
            $this->db->where('user_type', 'admin'); 
        } else {
            $this->db->where('users.users_id !=', '1'); 
        }
        $result = $this->db->get('users')->result();
        return $result;
    }

    /**
      * This function is used to get email template  
      */
    function get_template($code){
        $this->db->where('code', $code);
        return $this->db->get('templates')->row();
    }

    /**
      * This function is used to Insert record in table  
      */
    public function insertRow($table, $data){
        $this->db->insert($table, $data);
        return  $this->db->insert_id();
    }

    /**
      * This function is used to Update record in table  
      */
    public function updateRow($table, $col, $colVal, $data) {
        $this->db->where($col,$colVal);
        $this->db->update($table,$data);
        return true;
    }
}

这是错误：

严重性：通知

消息：未定义变量：user_data

文件名：views/profile.php

行号：475

回溯：

文件：/home4/cultured/public_html/application/views/profile.php 行： 475 函数：_error_handler

文件：/home4/cultured/public_html/application/controllers/Login.php 行：47 功能：查看

文件：/home4/cultured/public_html/index.php 行：315 功能： require_once 遇到 PHP 错误

严重性：通知

消息：试图获取非对象的属性

文件名：views/profile.php

行号：475

Answer 1

将代码放入控制器函数中的行号/home4/cultured/public_html/application/controllers/Login.php Line: 47

在将数据返回到视图时，用户数据数组应该在那里 如果它不存在，您将收到错误

$data["user_data"] = ""; // Your user_data query result should be here
$this->load->view("profile", $data);