Question

当我上传多张图片时，我希望能够显示每个文件名。

我可以将文件上传到上传文件夹，但是当我尝试获取多个file_name数据时，它会在下面显示错误。

我在下方收到此错误

严重性：警告消息：非法字符串偏移'file_name'文件名： page / Page_add.php行号：110

这是上传功能的成功部分

$upload_info = $this->upload->data();

foreach ($upload_info as $upload_data) {
    echo $upload_data['file_name']; // Line 110
}

上传功能

public function do_upload() {
    $directory = FCPATH . 'uploads/';

    if (is_dir($directory)) {

        foreach ($_FILES as $field_name => $value) {

            if ($value['name'] != '') {

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

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

                if (!$this->upload->do_upload($field_name)) {

                    $this->form_validation->set_message('do_upload', $this->upload->display_errors());

                    return FALSE;

                } else {

                    $upload_info = $this->upload->data();

                    foreach ($upload_info as $upload_data) {
                        echo $upload_data['file_name'];
                    }


                }

            }
        }

    } else {

        $this->form_validation->set_message('do_upload', 'Cannot Find Directory' .' '. $directory);

        return FALSE;

    }
}

public function do_upload_options() {
    $config = array();

    $config['upload_path'] = FCPATH . 'uploads/';
    $config['allowed_types'] = 'gif|png|jpg';
    $config['max_size'] = '30000';
    $config['overwrite'] = TRUE;
    $config['max_width']  = '0';
    $config['max_height']  = '0';

    return $config;
}

每个字段名称都有自己的名称=“”example name =“fileupload_extra_image0”结尾处的数字是自动生成的

Vardump

array(2) { ["fileupload_extra_image0"]=> array(14) { ["file_name"]=> string(17) "ci_logo_flame.jpg" ["file_type"]=> string(10) "image/jpeg" ["file_path"]=> string(49) "C:/Xampp/htdocs/riwakawebsitedesigns-cms/uploads/" ["full_path"]=> string(66) "C:/Xampp/htdocs/riwakawebsitedesigns-cms/uploads/ci_logo_flame.jpg" ["raw_name"]=> string(13) "ci_logo_flame" ["orig_name"]=> string(17) "ci_logo_flame.jpg" ["client_name"]=> string(17) "ci_logo_flame.jpg" ["file_ext"]=> string(4) ".jpg" ["file_size"]=> float(3.61) ["is_image"]=> bool(true) ["image_width"]=> int(100) ["image_height"]=> int(100) ["image_type"]=> string(4) "jpeg" ["image_size_str"]=> string(24) "width="100" height="100"" } ["fileupload_extra_image1"]=> array(14) { ["file_name"]=> string(10) "family.png" ["file_type"]=> string(9) "image/png" ["file_path"]=> string(49) "C:/Xampp/htdocs/riwakawebsitedesigns-cms/uploads/" ["full_path"]=> string(59) "C:/Xampp/htdocs/riwakawebsitedesigns-cms/uploads/family.png" ["raw_name"]=> string(6) "family" ["orig_name"]=> string(10) "family.png" ["client_name"]=> string(10) "family.png" ["file_ext"]=> string(4) ".png" ["file_size"]=> float(828.1) ["is_image"]=> bool(true) ["image_width"]=> int(670) ["image_height"]=> int(450) ["image_type"]=> string(3) "png" ["image_size_str"]=> string(24) "width="670" height="450"" } }

Answer 1

public function do_upload() 
{
    $directory = FCPATH . 'uploads/';
    $upload_info = [];//array();

    if (is_dir($directory)) {

        foreach ($_FILES as $field_name => $value) {

            if ($value['name'] != '') {

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

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

                if (!$this->upload->do_upload($field_name)) {

                    $this->form_validation->set_message('do_upload', $this->upload->display_errors());

                    return FALSE;//You would like to make better control here because first one is not file_name would break process

                } else {

                    $upload_info[$field_name] = $this->upload->data();

                }
            }
        }

        if ( count($upload_info) > 0 ) {
            foreach ($upload_info as $upload_data) {
                echo $upload_data['file_name'];
            }
        }

    } else {

        $this->form_validation->set_message('do_upload', 'Cannot Find Directory' .' '. $directory);

        return FALSE;

    }
}

public function do_upload_options() 
{
    $config = array();

    $config['upload_path'] = FCPATH . 'uploads/';
    $config['allowed_types'] = 'gif|png|jpg';
    $config['max_size'] = '30000';
    $config['overwrite'] = TRUE;
    $config['max_width']  = '0';
    $config['max_height']  = '0';

    return $config;
}

上传成功codeigniter

1 个答案: