Php 删除图像->；视频教程

我已经重新编写了我的问题，以帮助获得我的具体答案，如果我的最后一个问题令人困惑，很抱歉：

我有一个问题，试图从数据库中删除一行，但也包括如何取消链接到不同位置的图像。我无法获取要删除的行或要取消链接的图像

这是我的->

我的图像位置是：

fullpath = /includes/uploads/gallery/

thumbpath = /includes/uploads/gallery/thumbs/

function deleteImage($id,$path){

        $this->db->delete('images', array('id' => $id));

        if($this->db->affected_rows() >= 1) {
            if(unlink($path)
                return TRUE;
            } else{
                return FALSE;
            }
        }    

    <?php if(is_array($get_images)): ?>

            <?php foreach($get_images as $image): ?>
            <img src ="<?=base_url()?>includes/uploads/gallery/thumbs/<?=$image->thumbpath?>" alt="<?= $image->description?>"> <a href="deleteimage/delete/<?=$image->id?>">Delete</a>
            <?php endforeach; ?>
    <?php endif; ?>

   function index() { 
    if(!$this->session->userdata('logged_in')) { 
        redirect('admin/home'); 
    } 
    // Main Page Data 
    $page['get_images'] = $this->image_model->getImages();
    $data['cms_pages'] = $this->navigation_model->getCMSPages();
    $data['title'] = 'Delete Gallery Image'; 
    $data['content'] = $this->load->view('admin/deleteimage',$page,TRUE); 

    $this->load->view('admintemplate', $data);

}

理想情况：

fullpath = /includes/uploads/gallery/

thumbpath = /includes/uploads/gallery/thumbs/

function deleteImage($id,$path){

        $this->db->delete('images', array('id' => $id));

        if($this->db->affected_rows() >= 1) {
            if(unlink($path)
                return TRUE;
            } else{
                return FALSE;
            }
        }    

    <?php if(is_array($get_images)): ?>

            <?php foreach($get_images as $image): ?>
            <img src ="<?=base_url()?>includes/uploads/gallery/thumbs/<?=$image->thumbpath?>" alt="<?= $image->description?>"> <a href="deleteimage/delete/<?=$image->id?>">Delete</a>
            <?php endforeach; ?>
    <?php endif; ?>

   function index() { 
    if(!$this->session->userdata('logged_in')) { 
        redirect('admin/home'); 
    } 
    // Main Page Data 
    $page['get_images'] = $this->image_model->getImages();
    $data['cms_pages'] = $this->navigation_model->getCMSPages();
    $data['title'] = 'Delete Gallery Image'; 
    $data['content'] = $this->load->view('admin/deleteimage',$page,TRUE); 

    $this->load->view('admintemplate', $data);

}

我的理想情况是，当单击删除链接时，它将在索引函数中运行该函数，然后重新加载同一页面，并显示一条成功消息->我无法成功使它们工作

我的代码：

fullpath = /includes/uploads/gallery/

thumbpath = /includes/uploads/gallery/thumbs/

function deleteImage($id,$path){

        $this->db->delete('images', array('id' => $id));

        if($this->db->affected_rows() >= 1) {
            if(unlink($path)
                return TRUE;
            } else{
                return FALSE;
            }
        }    

    <?php if(is_array($get_images)): ?>

            <?php foreach($get_images as $image): ?>
            <img src ="<?=base_url()?>includes/uploads/gallery/thumbs/<?=$image->thumbpath?>" alt="<?= $image->description?>"> <a href="deleteimage/delete/<?=$image->id?>">Delete</a>
            <?php endforeach; ?>
    <?php endif; ?>

   function index() { 
    if(!$this->session->userdata('logged_in')) { 
        redirect('admin/home'); 
    } 
    // Main Page Data 
    $page['get_images'] = $this->image_model->getImages();
    $data['cms_pages'] = $this->navigation_model->getCMSPages();
    $data['title'] = 'Delete Gallery Image'; 
    $data['content'] = $this->load->view('admin/deleteimage',$page,TRUE); 

    $this->load->view('admintemplate', $data);

}

型号：

fullpath = /includes/uploads/gallery/

thumbpath = /includes/uploads/gallery/thumbs/

function deleteImage($id,$path){

        $this->db->delete('images', array('id' => $id));

        if($this->db->affected_rows() >= 1) {
            if(unlink($path)
                return TRUE;
            } else{
                return FALSE;
            }
        }    

    <?php if(is_array($get_images)): ?>

            <?php foreach($get_images as $image): ?>
            <img src ="<?=base_url()?>includes/uploads/gallery/thumbs/<?=$image->thumbpath?>" alt="<?= $image->description?>"> <a href="deleteimage/delete/<?=$image->id?>">Delete</a>
            <?php endforeach; ?>
    <?php endif; ?>

   function index() { 
    if(!$this->session->userdata('logged_in')) { 
        redirect('admin/home'); 
    } 
    // Main Page Data 
    $page['get_images'] = $this->image_model->getImages();
    $data['cms_pages'] = $this->navigation_model->getCMSPages();
    $data['title'] = 'Delete Gallery Image'; 
    $data['content'] = $this->load->view('admin/deleteimage',$page,TRUE); 

    $this->load->view('admintemplate', $data);

}

查看：

fullpath = /includes/uploads/gallery/

thumbpath = /includes/uploads/gallery/thumbs/

function deleteImage($id,$path){

        $this->db->delete('images', array('id' => $id));

        if($this->db->affected_rows() >= 1) {
            if(unlink($path)
                return TRUE;
            } else{
                return FALSE;
            }
        }    

    <?php if(is_array($get_images)): ?>

            <?php foreach($get_images as $image): ?>
            <img src ="<?=base_url()?>includes/uploads/gallery/thumbs/<?=$image->thumbpath?>" alt="<?= $image->description?>"> <a href="deleteimage/delete/<?=$image->id?>">Delete</a>
            <?php endforeach; ?>
    <?php endif; ?>

   function index() { 
    if(!$this->session->userdata('logged_in')) { 
        redirect('admin/home'); 
    } 
    // Main Page Data 
    $page['get_images'] = $this->image_model->getImages();
    $data['cms_pages'] = $this->navigation_model->getCMSPages();
    $data['title'] = 'Delete Gallery Image'; 
    $data['content'] = $this->load->view('admin/deleteimage',$page,TRUE); 

    $this->load->view('admintemplate', $data);

}

---

大概您有某种图像ID

将ID附加到

deleteimage/delete

URI

---

创建一个从表中删除ID的方法，并使用PHP的

unlink（$path）

函数实际删除图像。

如果使用active record，您需要的是：

$this->db->delete（）

现在从内存中，如果发生错误，它将只返回false，因此将不断返回true。但是我们可以使用另一个函数来检查行是否被删除

哦，您还需要将要删除的文件的路径传递到函数中

function deleteImage($id,$path) {

$this->db->delete('table', array('id' => $id));

    if($this->db->affected_rows() >= 1){
        if(unlink($path))
        return TRUE;
    } else {
        return FALSE;
    }

}

---

我将要更新我的问题——假设我已经离开了，现在我正在踢自己haha@Wh1T3h4Ck5你是对的，当我读到OP的帖子时，我感到困惑，谁提到了unset！我已经改正了我自己。我知道。。。注释已删除，+1保留：）嘿，我如何使其从某个位置删除，我只将文件名保存到数据库中，我有一个大拇指和完整的图像行。一个最高的解决方案，谢谢：）