Change Timezone: putenv(" TZ='your timezone' ");

Example:
putenv("TZ=America/Los_Angeles");

Timezone list:

Check to make sure the page referrer is there. Redirect to index if needed.

This looks at the passed variable that should be there. If not, and nothing else was posted, then kick them to the index page.

if (($my_environment['_GET']['name'] == '') and (!isset($_POST['whatever1'])) and (!isset($_POST['whatever2'])) and (!isset($_POST['whatever3']))) {
$link = "<a href=\"./index.php\" target=\"_self\">HERE</a>";
print "You have not entered this page properly. Please login at: ".$link;
exit;
}

Upload an image:

You might find one too many "{" or" }" as I cut this out of other code I wrote. If the Submit button on your bage is pressed, then this is the code that runs. You need to modify the names of variable to your liking.

// Process image data.
if (isset($_POST['update_image'])) {

// equate the temp image variables.
$fileName = $_FILES['image_upload']['name'];
$fileName = str_replace(' ', '_', $fileName); // Replace a Space with underscore if needed.

// Check if file already exists.
$result = mysql_fetch_array(mysql_query("SELECTimage_name FROM ".$_SESSION['table']." WHERE image_name <> '' and name <> '".$name."'"));

$result = array_search($fileName, $result);

if ($result === FALSE) {
$_SESSION['success'] = "<br>No duplicate images found.";
} else {
$_SESSION['success'] = "<br>Duplicate image name in database. Please change the image name.";
$Skip = TRUE;
}

if ($Skip != TRUE) {
$fileNameTemp = $fileName;
$tmpName = $_FILES['image_upload']['tmp_name'];
$fileSize = $_FILES['image_upload']['size'];
$fileType = $_FILES['image_upload']['type'];

// Check extension first.
$ext = (strpos($fileName,'.')===false?'':'.'.substr(strrchr($fileName, "."), 1));

// If file fails to pass then don't continue.
if ($fileSize > 0) {
if ($ext == ".gif" or $ext == ".jpg") {

if (image_type_to_mime_type($fileName) == "image/jpeg" or image_type_to_mime_type($fileName) == "image/gif" or image_type_to_mime_type($fileName) =="application/octet-stream") {
$Pass = TRUE; // It passed the file check.

// Leave only "jpeg" or the like.
$ftype = str_replace('image/', '', $fileType);

$fp = fopen($tmpName, 'r');
$content1 = fread($fp, filesize($tmpName));
$content1 = addslashes($content1);
fclose($fp);

if(!get_magic_quotes_gpc())
{
$fileName = addslashes($fileName);
}

// Set the filename to delete after updating with the new data.
$fname = mysql_fetch_array(mysql_query("SELECT image_name FROM ".$_SESSION['table']." WHERE name = '".$name."'"));
$fname = $_SERVER['DOCUMENT_ROOT'].'/images/'.$fname['image_name'];

// Put image data into table.
$query2 = "UPDATE ".$_SESSION['table']." SET
image_name = '".$fileName."'
WHERE name = '".$name."'";

if ($success1 = mysql_query($query2)) {
$_SESSION['success'] .= "<br>File ".$fileName." was uploaded.";
} else {
$_SESSION['success'] .= "<br>There was an error in uploading the image.";
}


// Get image from database and move it to folder.
if (uploadfile($fileNameTemp,$_SERVER['DOCUMENT_ROOT'].'/images/',$tmpName)) {
$_SESSION['success'] .= "<br>Received ".$fileNameTemp." - its size is ".$fileSize." bytes.";
// Delete replaced file from folder.
if (file_exists($fname)) { unlink($fname); }

} else {
$_SESSION['success'] .= "<br>There was an error in uploading the image.";
}
}
}
} else {
$_SESSION['success'] .= "<br>The image did not upload properly, is too large, or you did not use a *.gif or *.jpg. Please try again";
}
} else { // SKIP invoked
$_SESSION['success'] .= "<br>The image could not be loaded. Please try again.";
}
}

// Usage: uploadfile($_FILE['file']['name'],'temp/',$_FILE['file']['tmp_name'])
function uploadfile($origin, $dest, $tmp_name)
{
//$origin = strtolower(basename($origin));
$fulldest = $dest.$origin;
$filename = $origin;
for ($i=1; file_exists($fulldest); $i++)
{
$fileext = (strpos($origin,'.')===false?'':'.'.substr(strrchr($origin, "."), 1));
$filename = substr($origin, 0, strlen($origin)-strlen($fileext)).'['.$i.']'.$fileext;
$fulldest = $dest.$filename;
}

if (move_uploaded_file($tmp_name, $fulldest))
return $filename;
return false;
}