note 77635 added to function.sha1-file
| From: | schiros at invisihosting dot com | Date: | Thu, 06 Sep 2007 14:02:44 +0000 |
| Subject: | note 77635 added to function.sha1-file | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-130256@lists.php.net to get a copy of this message | ||
If you've got a script that allows user file upload, and you want to prevent multiple uploads
of the same file:
<?
session_start();
$isDuplicate = false;
if(isset($_FILES["filename"]["tmp_name"]) &&
file_exists($_FILES["filename"]["tmp_name"])) {
$fileHash = sha1_file($_FILES["filename"]["tmp_name"]);
if(!isset($_SESSION["check_filelist"])) {
$_SESSION["check_filelist"] = array($fileHash);
}
elseif(in_array($fileHash,$_SESSION["check_filelist"])) {
$isDuplicate = true;
}
else {
$_SESSION["check_filelist"][] = $fileHash;
}
if($isDuplicate) {
echo "You've already uploaded that file";
}
else{
// do some stuff
}
}
?>
----
Server IP: 69.147.83.197
Probable Submitter: 63.174.231.179
----
Manual Page -- http://www.php.net/manual/en/function.sha1-file.php
Edit -- https://master.php.net/note/edit/77635
Del: integrated -- https://master.php.net/note/delete/77635/integrated
Del: useless -- https://master.php.net/note/delete/77635/useless
Del: bad code -- https://master.php.net/note/delete/77635/bad+code
Del: spam -- https://master.php.net/note/delete/77635/spam
Del: non-english -- https://master.php.net/note/delete/77635/non-english
Del: in docs -- https://master.php.net/note/delete/77635/in+docs
Del: other reasons-- https://master.php.net/note/delete/77635
Reject -- https://master.php.net/note/reject/77635
Search -- https://master.php.net/manage/user-notes.php