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如何在CodeIgniter根文件夹和数据库中保存图像？

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我需要使用户能够更改个人资料图片，但是我找不到清晰的文档来说明如何通过演练来展示CodeIgniter上载过程的工作方式。

我已经在主表中创建了一个名为user_profile的列。

我定义了 size ，类型的控制器并对其进行了加密。

public function update_profile(){

    $config["upload_path"] = "public/images/profile";
    $config["allowed_types"] = "jpg|jpeg|gif|png";
    $config["max_size"] = 700;
    $config["max_width"] = 1024;
    $config["max_height"] = 768;
    $config["encrypt_name"] = TRUE;

    $this->load->library("upload",$config);

    if($this->upload->do_upload('user_profile'))
    {
        $info_arquivo = $this->upload->data();
        $user_profile = $info_arquivo["file_name"];

        $this->load->model("profile_model");

        $image_perfil = array(
            "user_profile" => $user_profile
        );

        $query = $this->profile_model->insert_image($image_perfil);

        if($query){
            $this->session->set_flashdata('msg','Imagem de perfilfoi atualizada');
            redirect(base_url('admin/dashboard'),'refresh');
        } else {
            $this->session->set_flashdata('msg','Imagem de perfil não foi atualizada');
            redirect(base_url('admin/profile'),'refresh');
        }
    }
    else
    {
        $this->session->set_flashdata('msg','Imagem de perfil não foi atualizada');
        redirect(base_url('admin/profile'),'refresh');
    }

}

然后在admin / profile视图中，输入以下格式。

                <!-- UPLOAD IMAGE USER -->
                <?php echo form_open_multipart('admin/update_profile'); ?>
                    <div    class="form-group">
                        <label>Selecione uma imagem</label>
                        <input type="file" name="user_profile" class="form-control" id="user_profile" required/>
                    </div>
                    <div    class="form-group">
                        <button type="submit" class="btn btn-success pull-right" value="cadastrar">Cadastrar</button>
                    </div>
                </form>
                <!-- END UPLOAD IMAGE USER -->

在我的Profile_model模型中，我将文件名插入user_profile列

class Profile_model extends CI_Model{

    public function insert_image($user_profile)
    {   
        $this->db->insert('ci_users',$user_profile);

        return $this->db->affected_rows() ? TRUE : FALSE;
    }

}
sheng13love 回答：如何在CodeIgniter根文件夹和数据库中保存图像？

我认为您在表单URL上的错误。请在下面的HTML表单上添加index.php 

   <!-- UPLOAD IMAGE USER -->
            **<?php echo form_open_multipart('index.php/admin/update_profile'); ?>**
                <div    class="form-group">
, 
  public function update_profile()
  {
    $config['upload_path']   = 'public/images/profile/'; 
    $config['allowed_types'] = 'gif|jpg|png'; 
    $config['max_size']      = 1000; 
    $config['max_width']     = 1024; 
    $config['max_height']    = 768;  
    $this->load->library('upload',$config);

    if ( ! $this->upload->do_upload('user_profile')) {
        $error = array('error' => $this->upload->display_errors()); 
        echo "<pre>";
        print_r($error);
        echo "</pre>";
        die();
        $this->session->set_flashdata('msg','Imagem de perfil não foi atualizada');
        redirect(base_url('admin/profile'),'refresh');
        //$this->load->view('upload_form',$error); 
    }

    else { 
        $info_arquivo = $this->upload->data(); 
        $user_profile = $info_arquivo["file_name"];

        $this->load->model("profile_model");

        $image_perfil = array(
            "user_profile" => $user_profile
        );

        $query = $this->profile_model->insert_image($image_perfil);

        if($query){
            $this->session->set_flashdata('msg','Imagem de perfilfoi atualizada');
            redirect(base_url('admin/dashboard'),'refresh');
        } else {
            $this->session->set_flashdata('msg','Imagem de perfil não foi atualizada');
            redirect(base_url('admin/profile'),'refresh');
        }
    } 
}

查看

 <!DOCTYPE html>
 <html>
 <head>
<title></title>
<!-- Latest compiled and minified CSS -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css">

<!-- jQuery library -->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>

<!-- Popper JS -->
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.7/umd/popper.min.js"></script>

<!-- Latest compiled JavaScript -->
  <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js"></script>
  </head>
  <body>

   <form action="<?php echo base_url('stackoverflow/update_profile');?>" method="post" enctype="multipart/form-data">
    <div class="form-group">
        <label>Selecione uma imagem</label>
        <input type="file" name="user_profile" class="form-control" id="user_profile" required/>
    </div>
    <div    class="form-group">
        <button type="submit" class="btn btn-success pull-right" value="cadastrar">Cadastrar</button>
    </div>
</form>

</body>
</html>
codeigniterhtmlmysqlphp
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