Question

如何在文件扩展名之前插入“_thumb”？例如123.jpg到123_thumb.jpg

请回答我的问题，已经3天我找不到合适的方式..谢谢

这是我的观点：

#include <memory>
int main()
{
    {
        RigidBody b;
        std::unique_ptr<Adaptor> a{Adaptor::adapt(b)};
        a->setPosition(15.);
        a->getPosition();
    }

    {
        RigidBody const b;
        std::unique_ptr<const Adaptor> a{Adaptor::adapt(b)};
        a->setPosition(15.);     // error: passing ‘const Adaptor’ as ‘this’ argument discards qualifiers
        a->getPosition();
    }
}

这是我的控制者：

 <div class="row service-box margin-bottom-40">
                    <!-- carousel -->
                    <div class="col-md-4">
                        <div class="carousel slide">
                            <?php
                            $reports_slide = $this->m_dashboard->report_slide();
                            foreach ($reports_slide as $row) {
                                echo '
                             <img width="100%" src="' . base_url() . 'img/report/thumbs/' . $row->report_img . '" class="mySlides">
                                ';
                            } ?>
                            <script>
                                var slideIndex = 0;
                                carousel();

                                function carousel() {
                                    var i;
                                    var x = document.getElementsByClassName("mySlides");
                                    for (i = 0; i < x.length; i++) {
                                        x[i].style.display = "none";
                                    }
                                    slideIndex++;
                                    if (slideIndex > x.length) {slideIndex = 1}
                                    x[slideIndex-1].style.display = "block";
                                    setTimeout(carousel, 2000); // Change image every 2 seconds
                                }
                            </script>
                        </div>
                    </div>

这是我的模特：

public function add_report()
    {

        $field_img = "img";
        $field_thumb = "thumb";
        $field_pdf = "pdf";
        // this is for form field 1 which is an image....
        $config['upload_path'] = '../img/report/';
        $config['allowed_types'] = 'gif|jpg|png|pdf';
        $config['max_size'] = '1024';
        $config['remove_spaces'] = TRUE;
        $config['overwrite'] = TRUE;

        $this->load->view('includes/header');
        $this->load->view('includes/menu');
        if (isset($_POST['submit'])) {
            if (isset($_FILES['img']['name']) && is_uploaded_file($_FILES['img']['tmp_name'])){
                $config['file_name'] = '_image_'.$_POST['id_company'].'_'.$_POST['report_title'];
                $this->upload->initialize($config);
                $this->upload->do_upload($field_img);
                $file_name = $this->upload->data();
                $file_img = $file_name['file_name'];

                $config =  array(
                    'image_library'   => 'gd2',
                    'source_image'    =>  $file_name['full_path'],
                    'new_image'       => '../img/report/thumbs/',
                    'create_thumb'    => TRUE,
                    'maintain_ratio'  =>  FALSE,
                    'width'           =>  827,
                    'height'          =>  1170,
                );
                $this->image_lib->clear();
                $this->image_lib->initialize($config);
                $this->image_lib->resize();


            }
         }
      }
      
   }

Answer 1

英语不是我的母语，对不起。

对于拇指的设置à新名称，您只需更改此配置

'new_image'       => '../img/report/thumbs/'

执行此操作时，您将获得有关文件

的大量信息

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

如果你喜欢Ci :: Upload，你会看到函数数据返回

    public function data($index = NULL)
{
    $data = array(
            'file_name'     => $this->file_name,
            'file_type'     => $this->file_type,
            'file_path'     => $this->upload_path,
            'full_path'     => $this->upload_path.$this->file_name,
            'raw_name'      => substr($this->file_name, 0, -strlen($this->file_ext)),
            'orig_name'     => $this->orig_name,
            'client_name'       => $this->client_name,
            'file_ext'      => $this->file_ext,
            'file_size'     => $this->file_size,
            'is_image'      => $this->is_image(),
            'image_width'       => $this->image_width,
            'image_height'      => $this->image_height,
            'image_type'        => $this->image_type,
            'image_size_str'    => $this->image_size_str,
        );

    if ( ! empty($index))
    {
        return isset($data[$index]) ? $data[$index] : NULL;
    }

    return $data;
}

在你的情况下，你感兴趣的是什么

                'raw_name'      => substr($this->file_name, 0, -strlen($this->file_ext)),

哪个给：

                   $config =  array(
                'image_library'   => 'gd2',
                'source_image'    =>  $file_name['full_path'],
                'new_image'       => "../img/report/thumbs/".$file_name['raw_name']."_thumb.".$file_name['file_ext'],
                'create_thumb'    => TRUE,
                'maintain_ratio'  =>  FALSE,
                'width'           =>  827,
                'height'          =>  1170,
            );

PS：见

Answer 2

我使用此扩展程序：http://www.matmoo.com/digital-dribble/codeigniter/image_moo/

它比Codeigniter自己的库更成功。特别是当我想保存多种尺寸的缩略图时。

如何在文件扩展名之前插入“_thumb”

2 个答案: