My PHP Uploader Questions..

I've gotten the file to upload, but I want it to be able to randomize the file name instead of the file's actual extension name.

Like instead of

/uploads/image.png

it's

/uploads/73d92cgj_dwsd.png

I'm using:

<?php
$target = "upload/";
$target = $target . basename( $_FILES['uploaded']['name']) ;
$ok=1;

//This is our size condition
if ($uploaded_size > 350000)
{
echo "Your file is too large.<br>";
$ok=0;
}

//This is our limit file type condition
if ($uploaded_type =="text/php")
{
echo "No PHP files<br>";
$ok=0;
}

//Here we check that $ok was not set to 0 by an error
if ($ok==0)
{
Echo "Sorry your file was not uploaded";
}

//If everything is ok we try to upload it
else
{
if(move_uploaded_file($_FILES['uploaded']['tmp_name'], $target))
{
echo "The file ". basename( $_FILES['uploadedfile']['name']). " has been uploaded";
}
else
{
echo "Sorry, there was a problem uploading your file.";
}
}
?>

PHP:

 

I did a little research, and I found a couple of websites that might help you with randomizing names:
http://php.about.com/od/advancedphp/ss/rename_upload_3.htm
http://www.webmasterworld.com/forum88/8039.htm

 

I usually put a timestamp on the end of my filenames. You could do something like the following;

				// set the target folder for the image
				$target = $_SERVER['DOCUMENT_ROOT'] . "/files/"; 

				// add a timestamp to the image name
				$timestamp = date('U');
				$file_arr = explode(".",$_FILES['file']['name']);
				$file = $timestamp . "." . $file_arr[1];
				$target = $target . $file; 
				if(!(move_uploaded_file($_FILES['attachments']['tmp_name'], $target)))

PHP:

 

@Weirfire - Yours would work as long as the user didnt have a . in their file name for instance say if they had it like "test.test2.jpg" it would return test2.


@Jake-Johnson: Here you go buddy... Didn't get to test it but should be good to go .. Leave rep if you use.

<?php
function createRandomString() 
{
    $chars = "abcdefghijkmnopqrstuvwxyz023456789";
    srand((double)microtime()*1000000);
    $i = 0;
    $string = '';
    while ($i <= 7) {
        $num = rand() % 33;
        $tmp = substr($chars, $num, 1);
        $string = $string . $tmp;
        $i++;
    }
    return $string;
}
$newimgname = createRandomString();
$target = "upload/";
$ext = strrchr(basename( $_FILES['uploaded']['name']), '.'); 
$target = $target.$newimgname.$ext;
$ok=1;

//This is our size condition
if ($uploaded_size > 350000)
{
echo "Your file is too large.<br>";
$ok=0;
}

//This is our limit file type condition
if ($uploaded_type =="text/php")
{
echo "No PHP files<br>";
$ok=0;
}

//Here we check that $ok was not set to 0 by an error
if ($ok==0)
{
Echo "Sorry your file was not uploaded";
}

//If everything is ok we try to upload it
else
{
if(move_uploaded_file($_FILES['uploaded']['tmp_name'], $target))
{
echo "The file ". basename( $_FILES['uploadedfile']['name']). " has been uploaded";
}
else
{
echo "Sorry, there was a problem uploading your file.";
}
}
?>

PHP:

 

true - you could change the line

$file = $timestamp . "." . $file_arr[1];

PHP:

to

$file = $timestamp . "." . $file_arr[count($file_arr)-1];

PHP:

 

There you go that would work... hopefully its helps this guy out.

 

Indeed!