我想将图像路径存储在带有索引的数组中，因为用户在 codeigniter 中发送电子邮件

Question

I'm trying to upload an image of a user in upload folder present at root directory not I want to create a global array because every person can't upload it's image only certain person can so I'm willing to create a global array which will be called before User Added Successfully which extends an array with index as users email and full path of the image $config[full_path] or something else I'm not cleared about that it would be great if you are able to explain that also so i created a global array in codeigniter but that's not working.

My Controller

class Welcome extends CI_Controller {
        $slogan = array();
        public function add_user_validation(){
        $this->form_validation->set_rules("firstName", "First Name", "required|trim|alpha");
        $this->form_validation->set_rules("lastName", "Last Name", "required|trim|alpha");
        $this->form_validation->set_rules("email", "Email", "required|trim|valid_email");
        $this->form_validation->set_rules("password", "Password", "required");
        $this->form_validation->set_rules("passwordMatch", "Password Comfirmation", "required|matches[password]");
        $this->form_validation->set_rules("userStatus", "User Status", "required");

        // if(!empty($_FILES['candidateSlogan'])){
        if(isset($_FILES['candidateSlogan'])){
            $config['upload_path'] = './upload/';
            $config['allowed_types'] = 'png|jpg|jpeg';
        }

        if ($this->form_validation->run()) {
            $this->load->model('main_model');
            $data = array(
                "first_name"    =>  $this->input->post('firstName'),
                "last_name"     =>  $this->input->post('lastName'),
                "email"         =>  $this->input->post('email'),
                "password"      =>  $this->input->post('password'),
                "user_status"   =>  $this->input->post('userStatus')
            );

            if($this->main_model->search_user_if_new($data)){
                if($this->input->post('userStatus') == 'candidate'){
                    $this->load->library('upload', $config);
                    if($this->upload->do_upload('candidateSlogan')){
                        $candidateSlogan = $this->upload->data();
                        // print_r($candidateSlogan);
                        if($this->main_model->add_user($data)){
                            $slogan[$this->input->post('email')] = $candidateSlogan['full_path'];
                            $success['message'] = 'User Added Successfully';
                            echo json_encode($success);
                        }
                        else{
                            $error['message'] = 'An error Occured'; 
                        }
                    }
                    else{
                        $error = array(
                            'file_error' => $this->upload->display_errors(),
                            'message' => 'Error'
                        );
                        echo json_encode($error);
                    }
                }
                else if($this->main_model->add_user($data)){
                    $success['message'] = 'User Added Successfully';
                    echo json_encode($success);
                }
            }
            else{
                $error['message'] = 'User Already Exists';
                echo json_encode($error);
            }       
        }
        else{
            $data = array(
                'message' => 'Error',
                'firstName' => form_error('firstName'),
                'lastName' => form_error('lastName'),
                'email' => form_error('email'),
                'password' => form_error('password'),
                'passwordMatch' => form_error('passwordMatch'),
                'userStatus' => form_error('userStatus')
            );
            echo json_encode($data);
        }}

Answer 1

I'm not sure, I get your question correctly. In order to assign a value to a global variable, you should use $this .

$this->slogan[$this->input->post('email')] = $candidateSlogan['full_path'];