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PHP Programming help [Upload Script]


catherinePHP
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Hello phpfreaks :)

 

I found a basic php upload script which i find really useful but I have a problem, I'm new to php programming and need help in this code:

<?
$upload = $_GET["upload"];
if ($upload == "now") {
  $path1 = "uploads/";
  $path="$path1".$_FILES['ufile']['name'];
  if($ufile !=none) {
    if(copy($_FILES['ufile']['tmp_name'], $path)) {
    echo "Success!<BR/>";
    echo "<META HTTP-EQUIV=\"Refresh\" CONTENT=\"2; URL=uploads/\">";
    } else {
    echo "<font color=red><b>Error!</b></font>";
    }
  }
} else {

?>
<table width="250" border="0" align="left" cellpadding="0" cellspacing="1">
<tr>
<form action="?upload=now" method="post" enctype="multipart/form-data">
<td>
<table  border="0" cellpadding="3" cellspacing="1">
<tr>
<td>Select file
<input name="ufile" type="file" id="ufile" /></td>
</tr>
<tr>
<td align="left"><input type="submit" name="Submit" value="Upload" /></td>
</tr>
</table>
</td>
</form>
</tr>
</table>
<a href="uploads">View Uploads</a>
<?   }   ?>

I want the script to change the name of a file to random numbers after being uploaded for example:

If a person uploaded a file called: "catherine.jpg"

The script will automatically rename it to: "1231421421421.jpg" while providing a link to the uploaded file. How can I do that? any help would be appreciated :)

 

Thanks in advance, and sorry for my bad english.

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The copy() function is what is naming and saving it. You are telling it to name it the original name, so just change that to whatever you want. You could use md5 hash to generate a pseudo-random name. Just extract the file extension first:

preg_match('/\.[^\.]+$/', $_FILES['ufile']['name'], $match);
$ext = $match[0];
$path = "uploads/" . md5($_FILES['ufile']['name']) . $ext;

You might want to look over line 6. You probably meant to put "none" in quotes. Although, $ufile doesn't seem to be set so it probably isn't really doing anything.

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