CodeIgniter 文件上传在循环中更改文件名

Question

情况是我有 3 个文件输入。它们的每个名称属性为file1、file2 和file3

然后在我的控制器中，我使用switch case 函数来重命名文件。

file1 = '标签' file2 = '米' file3 = 'rumah'

for ($n=1; $n<=3; $n++) {
    if (empty($_FILES["file$n"]['name'])) continue;

    $filext = pathinfo($_FILES["file$n"]['name'],PATHINFO_EXTENSION);

    switch($n) {
        case 1: $namae = 'label'; break;
        case 2: $namae = 'meter'; break;
        case 3: $namae = 'rumah'; break;
    }

    $config['upload_path']      = $upload_path;
    $config['allowed_types']    = 'gif|jpg|png';
    $config['max_size']         = 1024 * 20;
    $config['file_name']        = $namae;

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

    if (!$this->upload->do_upload("file$n")) {
        ${"photo$n"."_upload"} = $this->upload->display_errors();
    } else {
        ${"photo$n"."_upload"} = $this->upload->data();
        $this->model->simpan_foto($id_survei,$namae,${"photo$n"."_upload"}['file_name']);
    }
}

但是没有用！所有3个文件都用'label'命名，所以它是label.png，label1.png，label2.png（因为我没有使用$config['overwrite']）

如何做到这一点？

Answer 1

如果只有三个文件，那么试试这个代码......

for ($n=1; $n<=3; $n++) {
    if (empty($_FILES["file$n"]['name'])) continue;

    $filext = pathinfo($_FILES["file$n"]['name'],PATHINFO_EXTENSION);

    if($n==1){
     $namae = 'label';
     }
     if($n==2){
     $namae = 'meter';
     }
     if($n==3){
     $namae = 'rumah';
    }

    $config['upload_path']      = $upload_path;
    $config['allowed_types']    = 'gif|jpg|png';
    $config['max_size']         = 1024 * 20;
    $config['file_name']        = $namae;

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

    if (!$this->upload->do_upload("file$n")) {
        ${"photo$n"."_upload"} = $this->upload->display_errors();
    } else {
        ${"photo$n"."_upload"} = $this->upload->data();
        $this->model->simpan_foto($id_survei,$namae,${"photo$n"."_upload"}['file_name']);
    }
}