在php mysql中上传时重命名文件

Question

I have a simple piece of code for uploading the files in php/mysql and it works well.

$target = "uploads/clients/";
  $target = $target . basename( $_FILES['photo']['name']);

  $pic=($_FILES['photo']['name']);

  //Writes the photo to the server
  if(move_uploaded_file($_FILES['photo']['tmp_name'], $target))
  {
  $insertSQL = sprintf("INSERT INTO clients (img, `cname`) VALUES (%s, %s)",
                       GetSQLValueString($pic, "text"),
                       GetSQLValueString($_POST['cname'], "text"));

  mysql_select_db($database_thebest, $thebest);
  $Result1 = mysql_query($insertSQL, $thebest) or die(mysql_error());

Now what I want is to rename the filename if that filename already exists and then insert the renamed filename to the database

Thanks for your reply

Answer 1

Try this...

$upload_dir = "uploads/clients/";
$target = $upload_dir . basename( $_FILES['photo']['name']);
while(file_exists($target)){
    $new = time().rand();
    $target = $upload_dir . '_' . $new . '_' . basename( $_FILES['photo']['name']);
}

// rest of the code now...
$pic= $new . ($_FILES['photo']['name']);