File Management help

Hello,

I need some help with some php script for file management. So far, the code can upload up to 3 files at once and it works fine. However, I would like to have the ability to delete files from the directory that they are uploaded to. I would appreciate some help.

Here's the code I have so far:

Code:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="content-type" content="text/html; charset=iso-8859-1" /> <title>Upload a File</title> </head> <body> <?php ini_set ('display_errors', 1); error_reporting (E_ALL & ~E_NOTICE); if (isset ($_POST['submit'])) { if (move_uploaded_file ($_FILES['file1']['tmp_name'], "files/{$_FILES['file1']['name']}")) { print 'Your file has been uploaded.'; } else { print 'Your file could not be uploaded because: '; switch ($_FILES['file1']['error']) { case 1: print 'The file exceeds the upload_max_filesize setting in php.ini'; break; case 2: print 'The file exceeds the MAX_FILE_SIZE setting in the HTML form'; break; case 3: print 'The file was only partially uploaded'; break; case 4: print 'No file was uploaded'; break; } print '.'; } } if (isset ($_POST['submit'])) { if (move_uploaded_file ($_FILES['file2']['tmp_name'], "files/{$_FILES['file2']['name']}")) { print 'Your file has been uploaded.'; } else { print 'Your file could not be uploaded because: '; switch ($_FILES['file2']['error']) { case 1: print 'The file exceeds the upload_max_filesize setting in php.ini'; break; case 2: print 'The file exceeds the MAX_FILE_SIZE setting in the HTML form'; break; case 3: print 'The file was only partially uploaded'; break; case 4: print 'No file was uploaded'; break; } print '.'; } } if (isset ($_POST['submit'])) { if (move_uploaded_file ($_FILES['file3']['tmp_name'], "files/{$_FILES['file3']['name']}")) { print 'Your file has been uploaded.'; } else { print 'Your file could not be uploaded because: '; switch ($_FILES['file3']['error']) { case 1: print 'The file exceeds the upload_max_filesize setting in php.ini'; break; case 2: print 'The file exceeds the MAX_FILE_SIZE setting in the HTML form'; break; case 3: print 'The file was only partially uploaded'; break; case 4: print 'No file was uploaded'; break; } print '.'; } } ?> <form action="index.php" enctype="multipart/form-data" method="post"> <center> Upload a file using this form: <input type="hidden" name="MAX_FILE_SIZE" value="5242880" /> <input type="file" name="file1" /> <input type="file" name="file2" /> <input type="file" name="file3" /> <input type="submit" name="submit" value="Upload This File" /> <a href="files/">View Files</a> </center> </form> </body> </html>

Re: File Management help

Code:

unlink(filepath);

Deletes files in PHP.

It wasn't the best name for this function imo.

Re: File Management help

How can I list all the files in the directory with php?

Btw, I really new to php, thats why I don't know this stuff.

Re: File Management help

Code:

if ($handle = opendir('C:\Path\To\Files')) { echo "Directory handle: $handle\n"; echo "Files:\n"; /* This is the correct way to loop over the directory. */ while (false !== ($file = readdir($handle))) { echo "$file\n"; } /* This is the WRONG way to loop over the directory. */ while ($file = readdir($handle)) { echo "$file\n"; } closedir($handle); } else { echo 'Directory listing failed because the path provided was invalid'; }

php.net has excellent documentation on all of the functions used above.

Code pulled and modified from http://nz2.php.net/readdir (comment #1) because I'm lazy and I don't have my php files at work.

ALSO: you could shorten the code you have in post #1.

Code:

if (isset ($_POST['submit'])) { if (move_uploaded_file ($_FILES['file1']['tmp_name'], "files/{$_FILES['file1']['name']}")) { print 'Your file has been uploaded.'; } else { print 'Your file could not be uploaded because: '; switch ($_FILES['file1']['error']) { case 1: print 'The file exceeds the upload_max_filesize setting in php.ini'; break; case 2: print 'The file exceeds the MAX_FILE_SIZE setting in the HTML form'; break; case 3: print 'The file was only partially uploaded'; break; case 4: print 'No file was uploaded'; break; } print '.'; } } if (isset ($_POST['submit'])) { if (move_uploaded_file ($_FILES['file2']['tmp_name'], "files/{$_FILES['file2']['name']}")) { print 'Your file has been uploaded.'; } else { print 'Your file could not be uploaded because: '; switch ($_FILES['file2']['error']) { case 1: print 'The file exceeds the upload_max_filesize setting in php.ini'; break; case 2: print 'The file exceeds the MAX_FILE_SIZE setting in the HTML form'; break; case 3: print 'The file was only partially uploaded'; break; case 4: print 'No file was uploaded'; break; } print '.'; } } if (isset ($_POST['submit'])) { if (move_uploaded_file ($_FILES['file3']['tmp_name'], "files/{$_FILES['file3']['name']}")) { print 'Your file has been uploaded.'; } else { print 'Your file could not be uploaded because: '; switch ($_FILES['file3']['error']) { case 1: print 'The file exceeds the upload_max_filesize setting in php.ini'; break; case 2: print 'The file exceeds the MAX_FILE_SIZE setting in the HTML form'; break; case 3: print 'The file was only partially uploaded'; break; case 4: print 'No file was uploaded'; break; } print '.'; } }

Could be changed to:

Code:

if (isset ($_POST['submit'])) { if (move_uploaded_file ($_FILES['file1']['tmp_name'], "files/{$_FILES['file1']['name']}")) { print 'Your file has been uploaded.'; } else { print 'Your file could not be uploaded because: '; switch ($_FILES['file1']['error']) { case 1: print 'The file exceeds the upload_max_filesize setting in php.ini'; break; case 2: print 'The file exceeds the MAX_FILE_SIZE setting in the HTML form'; break; case 3: print 'The file was only partially uploaded'; break; case 4: print 'No file was uploaded'; break; } print '.'; } if (move_uploaded_file ($_FILES['file2']['tmp_name'], "files/{$_FILES['file2']['name']}")) { print 'Your file has been uploaded.'; } else { print 'Your file could not be uploaded because: '; switch ($_FILES['file2']['error']) { case 1: print 'The file exceeds the upload_max_filesize setting in php.ini'; break; case 2: print 'The file exceeds the MAX_FILE_SIZE setting in the HTML form'; break; case 3: print 'The file was only partially uploaded'; break; case 4: print 'No file was uploaded'; break; } print '.'; } if (move_uploaded_file ($_FILES['file3']['tmp_name'], "files/{$_FILES['file3']['name']}")) { print 'Your file has been uploaded.'; } else { print 'Your file could not be uploaded because: '; switch ($_FILES['file3']['error']) { case 1: print 'The file exceeds the upload_max_filesize setting in php.ini'; break; case 2: print 'The file exceeds the MAX_FILE_SIZE setting in the HTML form'; break; case 3: print 'The file was only partially uploaded'; break; case 4: print 'No file was uploaded'; break; } print '.'; } }

because there is no need to check if

Code:

if (isset ($_POST['submit']))

is true three times, in this case at least.

Re: File Management help

Quote:

if (isset ($_POST['submit']))

What's this for?

Use $_SERVER['REQUEST_METHOD'] if you're trying to validate that the request was a POST request.

Re: File Management help

Quote:

Originally Posted by Sakesaru

Code:

unlink(filepath);

Deletes files in PHP.

It wasn't the best name for this function imo.

'unlink' is a POSIX standardised function name. PHP's usage probably derives from Perl's.

Re: File Management help

Quote:

Originally Posted by penagate

'unlink' is a POSIX standardised function name. PHP's usage probably derives from Perl's.

It is actually taken from C:

Quote:

Originally Posted by PHP.net

Deletes filename . Similar to the Unix C unlink() function.

Re: File Management help

There is a reason why it is named unlink. This is because it unlinks a file or directory from its parent directory - so the name of the function simply describes what it does.

In the Linux extended file system and many others, a directory is simply a list of links to other directories of files. In Linux, a file can be linked from one or more directories; this so called hard linking is what the unlink command does.