php CodeIgniter：如何从文件夹中删除上传的图像
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CodeIgniter : How to delete uploaded image from folder
提问by TableMan
I want to delete the image not only in database, but in folder too.
我不仅要删除数据库中的图像，还要删除文件夹中的图像。
This is my database table:
这是我的数据库表：
group_id
group_name
group_descrtion
group_picture
This is my controller :
这是我的控制器：
public function delete_group()
{
$group_id = $this->input->post('group_id');
$group_picture = $this->input->post('group_picture');
$this->group_model->delete_group($group_id, $group_picture);
redirect('product_group');
}
this is my model :
这是我的模型：
function delete_group($group_id, $group_picture)
{
$this->db->where('group_id', $group_id);
unlink(base_url("uploads/".$group_picture));
$this->db->delete('product_group', array('group_id' => $group_id));
}
and this is my view :
这是我的观点：
<?=form_open_multipart('product_group/delete_group');?>
<input type="hidden" class="form-control" placeholder="Group ID" name="group_id">
<input type="text" class="form-control" placeholder="Group ID" name="group_picture">
<div class="modal-footer">
<button data-dismiss="modal" class="btn btn-default" type="button">Cancel</button>
<button class="btn btn-success" type="submit">Submit</button>
</div>
</form>
I succeed in deleting the data in the database, but the image in the folder are not also be deleted.
我成功删除了数据库中的数据，但文件夹中的图像也没有被删除。
Thanks for your help :)
谢谢你的帮助 ：）
回答by Jeremy Hymanson
unlink(base_url("uploads/".$group_picture));
Should be
应该
unlink("uploads/".$group_picture);
You need the path, not the url.
您需要路径，而不是网址。
回答by Tpojka
Use CI constant FCPATHas location of root directory, so in your case that should be:
使用 CI 常量FCPATH作为根目录的位置，所以在你的情况下应该是：
unlink( FCPATH . "uploads/" . $group_picture );
Notice that FCPATHalready has trailing slash.
请注意，FCPATH已经有尾随斜线。
回答by Shahzaib Ahsan
USE FCPATH in you Delete function
在您的删除功能中使用 FCPATH
unlink(FCPATH."uploads/".$image);
回答by Khairul Islam
To delete a file/picture you can use delete_files()function. First load the file helper and then pass the file path as a first parameter in the delete_files()function and trueas the second.like-
要删除文件/图片，您可以使用delete_files()功能。首先加载文件助手，然后将文件路径作为delete_files()函数中的第一个参数和第二个参数传递true。like-
delete_files($path, true);
回答by Ijaz Ali
You just need to give only directoryname that starts from the folder, not from base_url
您只需要提供从文件夹开始的目录名，而不是从base_url
unlink("uploads/group/Images/".$group_picture);
unlink("上传/组/图片/".$group_picture);
