How to Declare timestamp as variable and convert to ddmmyy format - php

Question

I have a date issue here. I have a timestamp field in mysql table called filedate. However I have tried several times to declare it and also convert it to a dd-mm-yy format. Unfortunately when I load it the date is still in timestamp format and when I then upload it claims I haven't declared the variable filedate.
Any assistance pointing me in the right direction would be gratefully accepted.
All the code is below. I also have a HTML file to show upload and description.
if (isset($_POST['action']) and $_POST['action'] == 'upload')
{
// Bail out if the file isn't really an upload
if (!is_uploaded_file($_FILES['upload']['tmp_name']))
{
$error = 'There was no file uploaded!';
include $_SERVER['DOCUMENT_ROOT'] . 'mediamouse/includes/error.html.php';
exit();
}
$uploadfile = $_FILES['upload']['tmp_name'];
$uploadname = $_FILES['upload']['name'];
$uploadtype = $_FILES['upload']['type'];
$uploaddesc = $_POST['desc'];
$uploaddata = file_get_contents($uploadfile);
$filedate = time();
include 'db.inc.php';
// Prepare user-submitted values for safe database insert
$uploadname = mysqli_real_escape_string($link, $uploadname);
$uploadtype = mysqli_real_escape_string($link, $uploadtype);
$uploaddesc = mysqli_real_escape_string($link, $uploaddesc);
$uploaddata = mysqli_real_escape_string($link, $uploaddata);
$sql = "INSERT INTO filestore SET
filename = '$uploadname',
mimetype = '$uploadtype',
description = '$uploaddesc',
filedata = '$uploaddata'";
if (!mysqli_query($link, $sql))
{
$error = 'Database error storing file!';
include $_SERVER['DOCUMENT_ROOT'] . 'mediamouse/includes/error.html.php';
exit();
}
header('Location: .');
exit();
}
if (isset($_GET['action']) and
($_GET['action'] == 'view' or $_GET['action'] == 'download') and
isset($_GET['id']))
{
include 'db.inc.php';
$id = mysqli_real_escape_string($link, $_GET['id']);
$sql = "SELECT filename, mimetype, filedata, DATE_FORMAT(STR_TO_DATE( filedate, '%d-%b-%Y'), '%Y.%m.%d')
FROM filestore
WHERE id = '$id'";
$result = mysqli_query($link, $sql);
if (!$result)
{
$error = 'Database error fetching requested file.';
include $_SERVER['DOCUMENT_ROOT'] . 'mediamouse/includes/error.html.php';
exit();
}
$file = mysqli_fetch_array($result);
if (!$file)
{
$error = 'File with specified ID not found in the database!';
include $_SERVER['DOCUMENT_ROOT'] . 'mediamouse/includes/error.html.php';
exit();
}
$filename = $file['filename'];
$mimetype = $file['mimetype'];
$filedata = $file['filedata'];
$disposition = 'inline';
if ($_GET['action'] == 'download')
{
$mimetype = 'application/octet-stream';
$disposition = 'attachment';
}
// Content-type must come before Content-disposition
header("Content-type: $mimetype");
header("Content-disposition: $disposition; filename=$filename");
header('Content-length: ' . strlen($filedata));
echo $filedata;
exit();
}
if (isset($_POST['action']) and $_POST['action'] == 'delete' and
isset($_POST['id']))
{
include 'db.inc.php';
$id = mysqli_real_escape_string($link, $_POST['id']);
$sql = "DELETE FROM filestore
WHERE id = '$id'";
if (!mysqli_query($link, $sql))
{
$error = 'Database error deleting requested file.';
include $_SERVER['DOCUMENT_ROOT'] . 'mediamouse/includes/error.html.php';
exit();
}
header('Location: .');
exit();
}
include 'db.inc.php';
$sql = 'SELECT id, filename, mimetype, description, filedate
FROM filestore';
$result = mysqli_query($link, $sql);
if (!$result)
{
$error = 'Database error fetching stored files.';
include $_SERVER['DOCUMENT_ROOT'] . 'mediamouse/includes/error.html.php';
exit();
}
$files = array();
while ($row = mysqli_fetch_array($result))
{
$files[] = array(
'id' => $row['id'],
'filename' => $row['filename'],
'mimetype' => $row['mimetype'],
'description' => $row['description'],
'filedate' => $row['filedate']);
}
include 'files3.html.php';
?>

Answer 1

Use NOW() when inserting. When formatting, I don't think you need to parse the TIMESTAMP typed column, as DATE_FORMAT should be able to work with timestamps directly.
This works:
SELECT DATE_FORMAT( CURRENT_TIMESTAMP( ) , '%Y.%m.%d' )

Answer 2

you have to use UNIX_TIMESTAMP() in your select statement