Codeigniter 使用不同的区域名称多次上传并在上传前重命名文件答案

【问题标题】：Codeigniter multiple upload with different area name and rename the file before uploadedCodeigniter 使用不同的区域名称多次上传并在上传前重命名文件
【发布时间】：2017-11-23 20:23:59
【问题描述】：

我在上传多个不同区域名称的文件时遇到问题，我想在上传之前更改每个区域的文件名。

这是 HTML 表单。

<input type="file" placeholder="" name="profilPic"/>
<input type="file" placeholder="" name="topPic"/>

这是控制器

    $config['upload_path']          = './uploads/';
    $config['allowed_types']        = 'gif|jpg|png';
    $config['max_size']             = 100;
    $config['max_width']            = 1024;
    $config['max_height']           = 768;
    //$config['file_name']          = $this->session->sersession["id"];
    $this->load->library('upload', $config);
    $profilPic = $this->upload->do_upload('profilPic');
    if (!$profilPic){
        $error = array('error' => $this->upload->display_errors());
        $this->session->set_flashdata("error", "profil pic was not uploaded= ");
    }else{
        $data = array('upload_data' => $this->upload->data());
        $this->session->set_flashdata("success", "profil picture was uploaded.");
    }
    $topPic = $this->upload->do_upload('topPic');
    if (!$topPic){
            $error = array('error' => $this->upload->display_errors());
            $this->session->set_flashdata("error", "top pic was not uploaded" );

    }else{
        $data = array('upload_data' => $this->upload->data());
        $this->session->set_flashdata("success", "this picture was uploaded.");
    }

注意：图片上传到目录。但我想在上传之前重命名每个文件的文件名，如“userID_profil.jpg”和“userID_top.jpg”

【问题讨论】：

标签： php codeigniter file-upload

【解决方案1】：

您可以在第二个文件上传之前设置$config['file_name']

$this->upload->initialize($config);

当然，您还需要使用$this->load->library('upload', $config) 或$this->upload->initialize($config) 为第一个文件设置它。

文档：https://www.codeigniter.com/userguide3/libraries/file_uploading.html#setting-preferences

【讨论】：

【解决方案2】：

我解决了。

    $config['upload_path']          = './uploads/';
    $config['allowed_types']        = 'gif|jpg|png';
    $config['max_size']             = 100;
    $config['max_width']            = 1024;
    $config['max_height']           = 768;
    if($_FILES["profilPic"]["name"]){
        $config["file_name"] = $this->session->usersession["id"]."_profil.jpg";
        $this->load->library('upload', $config);
        $profilPic = $this->upload->do_upload('profilPic');
        if (!$profilPic){
            $error = array('error' => $this->upload->display_errors());
            $this->session->set_flashdata("error", ".");
        }else{
            $profilPic = $this->upload->data("file_name");
            $data = array('upload_data' => $this->upload->data());
            $this->session->set_flashdata("success", ".");
        }
    }

    if($_FILES["topPic"]["name"]){
        $config["file_name"] = $this->session->usersession["id"]."_top.jpg";
        if($_FILES["profilPic"]["name"]){
            $this->upload->initialize($config);
        }else{
            $this->loadl->library('upload', $config);
        }
        $topPic = $this->upload->do_upload('topPic');
        if (!$topPic){
            $error = array('error' => $this->upload->display_errors());
            $this->session->set_flashdata("error", "" );
        }else{
            $topPic = $this->upload->data("file_name");
            $data = array('upload_data' => $this->upload->data());
            $this->session->set_flashdata("success", ".");
        }
    }

【讨论】：