I am using codeigniter3. now I want to delete records as well as related images but records deleted but it doesn't delete the images from the folder. every record has 3 images.
public function delete_by_id_and_img($id) {
$image_file_name = $this->db->select('material_image')->get_where('tbl_raw_material', array('id' => $id))->row()->material_image;
$cwd = getcwd(); // save the current working directory
$image_file_path = $cwd."\\public\img\\";
chdir($image_file_path);
unlink($image_file_name);
chdir($cwd); // Restore the previous working directory
$this->db->where('id', $id);
$this->db->delete('tbl_raw_material');
return true;
}
I'm not sure but is your syntax with two \ in your path before public and after img correct?
$image_file_path = $cwd."\\public\img\\";
Also check if / this will work for you , since \ I think, is for linux
You can use something like this:
$image_file_path='/project/folder/file_to_delete';
unlink($image_file_path);
You have to give full path of the file.
Remove file from the folder - denied access of file so change the user and then unlink file
chown($path, 666); //Insert an Invalid UserId to set to Nobody Owern;
unlink($path);
Related
I make a site and it has this feature to upload a file and that file is uploaded to a server
Im just a newbie to php I download xampp and I run this site that i made in my local machine.
My site is like this you upload a file then that file will be uploaded to a server, but when i tried unlink() because when i try to remove the filename to a database I also want to remove that pic on the server, but instead I got an error and it says "Permission denied".
question:
How can I got permission to use unlink();?
I only run this on my localmachine using xampp
Permission denied error happens because you're trying to delete a file without having enough/right permissions for doing that.
To do this you must be using superuser account or be the same user that have uploaded the file.
You can go to the directory from your command line and check the permissions that are set to the file.
The easiest solution is to loggin as administrator/root and delete the file.
Here is another work around:
// define if we under Windows
$tmp = dirname(__FILE__);
if (strpos($tmp, '/', 0)!==false) {
define('WINDOWS_SERVER', false);
} else {
define('WINDOWS_SERVER', true);
}
$deleteError = 0;
if (!WINDOWS_SERVER) {
if (!unlink($fileName)) {
$deleteError = 1;
}
} else {
$lines = array();
exec("DEL /F/Q \"$fileName\"", $lines, $deleteError);
}
if ($deleteError) {
echo 'file delete error';
}
And some more: PHP Manual, unlink(), Post 106952
I would recommend, always first to check PHP Manual (in case your question concerns PHP), just go to the page with function that you have problems with and just click search CTRL+F in your browser and enter, for example, Windows, and as a result, in your case, you would find at least 7 related posts to that or very close to that what you were looking for.
Read this URL
How to use Unlink() function
I found this information in the comments of the function unlink()
Under Windows System and Apache, denied access to file is an usual error to unlink file. To delete file you must to change file's owern. An example:
<?php
chown($TempDirectory."/".$FileName,666); //Insert an Invalid UserId to set to Nobody Owern; 666 is my standard for "Nobody"
unlink($TempDirectory."/".$FileName);
?>
So try something like this:
$Path = './doc/stuffs/sample.docx';
chown($Path, 666);
if ( unlink($Path) )
echo "success";
else
echo "fail";
EDIT 1
Try to use this in the path:
$Path = '.'.DIRECTORY_SEPARATOR.'doc'.DIRECTORY_SEPARATOR.'stuffs'.DIRECTORY_SEPARATOR.'sample.docx';
In my project I have a folder secure in root. The project package looks like:
application
secure
system
...........
Inside secure folder I am uploading some images on form submit using
$config1['upload_path'] = './secure/';
$ext = end(explode(".", $_FILES['thumb_image']['name']));
$config1['file_name'] = time().$_FILES['thumb_image']['name'];
$config1['allowed_types'] = 'jpg|png|jpeg|gif|bmp|jpe|tiff|tif';
$this->load->library('upload', $config1);
$this->upload->initialize($config1);
$this->upload->do_upload('thumb_image');
and it is working properly. Now while on editing the details, using another form, if I am uploading a new image instead of the current image file, I want to unlink the current one and then upload new file.
For this I am using the code:
unlink(base_url("secure/".$data['row']->videothumbnail));
I also tried with
unlink('/secure/'.$data['row']->videothumbnail);
where $data['row']->videothumbnail) is the current image file from database. New file is successfully uploaded. But old file is not getting unlinked. I have set the permission of secure folder to 777. But the images are uploaded with read only permission. Is it because of this, it is not getting unlinked?
Can anyone help me to solve this?
Thanks in advance.
Try this:
Set the permission dynamically using:
#chmod('./secure/'.$data['row']->videothumbnail, 0777);
then try unlink:
#unlink('./secure/'.$data['row']->videothumbnail);
Try echoing the path that you are providing to unlink function.
It should be something like this:
base_url()."secure/".$data['row']->videothumbnail;
I also had this issue even after setting the right permission on the folder. But the following code worked for me.
unlink(realpath(APPPATH . '../uploads').'/'.$ImageName);
Try to use $_SERVER['DOCUMENT_ROOT'] instead of base_url
$this->load->helper("file")
unlink(base_url('folder/file.ext'));
location:
\app\controller
\system\libraries
**folder\file.ext**
$unlinkUrl = "secure/".$data['row']->videothumbnail;
if(file_exists($unlinkUrl)){
unlink($unlinkUrl);
}
else{
echo $unlinkUrl." is not available";
}
I think you are just making a stupid mistake.
Firstly, the first param of unlink should be a relative path or absolute path, but base_url function will return you a path contains domain name, HOW CAN YOU DELETE A FILE ON REMOTE SERVER ?
Secondly, '/secure/'.$data['row']->videothumbnail here is not a relative path but a absolute path
YOU MUST change it into /the/absolute/path/to/secure/ or ./the/relative/path/to/secure/ (DO NOT MISS THE DOT)
use this to unlink
$oldthumb = "secure/".$data['row']->videothumbnail;
#unlink($oldthumb);
First Load the $this->load->helper("file") and then unlink it
unlink("secure/".$data['row']->videothumbnail);
if ($rowAffected > 0) {
if ($isMediaUpload)
if (file_exists('./uploads/' . $this->input->post('img_url')))
unlink('./uploads/' . $this->input->post('img_url'));
redirect('/admin/configration', 'location');
}
Though i came in late but someone might need this .
unlink(FCPATH."secure/".$data['row']->videothumbnail)
**FCPATH** - path to front controller, usually index.php
**APPPATH** - path to application folder
**BASEPATH** - path to system folder.
I am using this script(http://stuporglue.org/mailreader-php-parse-e-mail-and-save-attachments-php-version-2/) to save email attachment on my server. You can also view the complete script on browser here: http://stuporglue.org/downloads/mailReader.txt
Everything works fine but there are 2 problems here.
1) The file name of the image that i saved into the directory is not an image: 1360341823_test_jpg
How to convert the file name from 1360341823_test_jpg to 1360341823_test.jpg
in the script?
2) The permission of the file that saved in the directory is 600.
How to make it default 755 or 775?
I believe this is the function to convert the image in the script.:
function saveFile($filename,$contents,$mimeType){
global $save_directory,$saved_files,$debug;
$filename = preg_replace('/[^a-zA-Z0-9_-]/','_',$filename);
$unlocked_and_unique = FALSE;
while(!$unlocked_and_unique){
// Find unique
$name = time()."_".$filename;
while(file_exists($save_directory.$name)) {
$name = time()."_".$filename;
}
// Attempt to lock
$outfile = fopen($save_directory.$name,'w');
if(flock($outfile,LOCK_EX)){
$unlocked_and_unique = TRUE;
} else {
flock($outfile,LOCK_UN);
fclose($outfile);
}
}
fwrite($outfile,$contents);
fclose($outfile);
// This is for readability for the return e-mail and in the DB
$saved_files[$name] = Array(
'size' => formatBytes(filesize($save_directory.$name)),
'mime' => $mimeType
);
}
Any help?
The original script used the data to store in the DB but I think you are trying to save it in the file. You are creating the file without extension here:
// Attempt to lock
$outfile = fopen($save_directory.$name,'w');
Either add the .jpg after the line as:
#outfile.=".jpg";
Other way if you don't want to change script then you can get use as:
$contents = file_get_contents($save_directory.$name);
$outfile = fopen($save_directory.$new_name,'w');
write($outfile,$contents);
fclose($outfile);
This would resolve your first problem and for second question kindly use the FTP or Control panel provided to access the files to change the ownership rights. If you don't know about any thing then you contact your Web Hosting Service Provider to share the ownership from 755 to 775
I make a site and it has this feature to upload a file and that file is uploaded to a server
Im just a newbie to php I download xampp and I run this site that i made in my local machine.
My site is like this you upload a file then that file will be uploaded to a server, but when i tried unlink() because when i try to remove the filename to a database I also want to remove that pic on the server, but instead I got an error and it says "Permission denied".
question:
How can I got permission to use unlink();?
I only run this on my localmachine using xampp
Permission denied error happens because you're trying to delete a file without having enough/right permissions for doing that.
To do this you must be using superuser account or be the same user that have uploaded the file.
You can go to the directory from your command line and check the permissions that are set to the file.
The easiest solution is to loggin as administrator/root and delete the file.
Here is another work around:
// define if we under Windows
$tmp = dirname(__FILE__);
if (strpos($tmp, '/', 0)!==false) {
define('WINDOWS_SERVER', false);
} else {
define('WINDOWS_SERVER', true);
}
$deleteError = 0;
if (!WINDOWS_SERVER) {
if (!unlink($fileName)) {
$deleteError = 1;
}
} else {
$lines = array();
exec("DEL /F/Q \"$fileName\"", $lines, $deleteError);
}
if ($deleteError) {
echo 'file delete error';
}
And some more: PHP Manual, unlink(), Post 106952
I would recommend, always first to check PHP Manual (in case your question concerns PHP), just go to the page with function that you have problems with and just click search CTRL+F in your browser and enter, for example, Windows, and as a result, in your case, you would find at least 7 related posts to that or very close to that what you were looking for.
Read this URL
How to use Unlink() function
I found this information in the comments of the function unlink()
Under Windows System and Apache, denied access to file is an usual error to unlink file. To delete file you must to change file's owern. An example:
<?php
chown($TempDirectory."/".$FileName,666); //Insert an Invalid UserId to set to Nobody Owern; 666 is my standard for "Nobody"
unlink($TempDirectory."/".$FileName);
?>
So try something like this:
$Path = './doc/stuffs/sample.docx';
chown($Path, 666);
if ( unlink($Path) )
echo "success";
else
echo "fail";
EDIT 1
Try to use this in the path:
$Path = '.'.DIRECTORY_SEPARATOR.'doc'.DIRECTORY_SEPARATOR.'stuffs'.DIRECTORY_SEPARATOR.'sample.docx';
I'm currently building a very low level CMS for friend's artist web page that will allow her to upload, edit, and delete images along with designating categories for them and posting news posts about shows and so on.
I'm sure there is a very easy solution to this problem of mine but my inexperience in programming has me left at a loss; so here goes.
The Problem
The problem occurs on a page where the user can delete an image that has been uploaded. Here is the snippet of code where the problem occurs:
// Assign selection to variables in memory...
$img_id = $data["img_name"];
// First, collect the file path to the image being deleted...
$rs = mysql_query("SELECT img_path FROM img_uploads WHERE img_id = '$img_id'") or die(mysql_error());
list($img_path) = mysql_fetch_row($rs);
// Then delete that row from the DB...
mysql_query("DELETE FROM img_uploads WHERE img_id = '$img_id'") or die(mysql_error());
// Now, using the file path collected earlier, delete that file from the server.
unlink($img_path);
// Quickly make sure that the file has been deleted by checking if it exists... if it still exists return error.
if(file_exists($filename)) {
$err[] = "ERROR - There was an error deleting the file! Please try again.";
$_SESSION["errors"] = $err;
header("Location: img_del.php?doDel=failed");
exit();
}
// Scan the directory now that a file has been deleted to see if the dir is empty. If so, delete it. (No use in having empty folders!)
$file_types = array("gif","jpg","png"); // file types to scan for...
$path_parts = pathinfo($img_path); // get the directory from the file path...
$dir = $path_parts["dirname"] . "/"; // assign it to a new variable...
$handle = opendir($dir);
$scan = scandir($dir); // now, scan that directory...
$image_found = FALSE;
for($i=0; $i<count($scan); $i++) {
if ($scan[$i] != '.' && $scan[$i] != '..' && in_array(end(explode('.', $scan[$i])), $file_types)) {
$image_found = TRUE;
}
}
closedir($handle);
if(!$image_found) {
rmdir($dir);
}
I first delete the DB row containing image info, then delete the file from the server. this works fine, however, I also want to check if the directory is left empty after deleting that file. I check if the directory is empty using a loop and if no file is found, I run mkdir(). For some reason it keeps returning an error saying that the directory is not empty
I've searched the web and this site for a solution but I've yet to find one. I'm sure it's out there but I'm having trouble finding it which why I came here. What should I do?
Thanks in advance for any help submitted!
NOTE
I have also checked for hidden files and folders but no luck...
Here is a link to an image that pretty much sums up my problem in a nutshell
Are you sure PHP has permission to delete the file? Since you say you've checked for hidden files, this seems to be the only remaining option. CHMOD 0777 when in doubt (I'd never recommend this usually, but if you're deleting it anyway...), and make sure the folder has the proper owner to let php delete it.