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How Can I Add A Random Name To Images Being Uploaded To My Website?


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so I'm in the process of making a .gif uploading website, and this is my code for "upload_file.php".

$allowedExts = array("jpg", "jpeg", "gif", "png");
$extension = end(explode(".", $_FILES["file"]["name"]));
if ((($_FILES["file"]["type"] == "image/gif"))
&& ($_FILES["file"]["size"] < 5242880)
&& in_array($extension, $allowedExts))
if ($_FILES["file"]["error"] > 0)
echo "Return Code: " . $_FILES["file"]["error"] . "<br>";
echo "Upload: " . $_FILES["file"]["name"] . "<br>";
echo "Type: " . $_FILES["file"]["type"] . "<br>";
echo "Size: " . ($_FILES["file"]["size"] / 1024) . " kB<br>";
echo "Temp file: " . $_FILES["file"]["tmp_name"] . "<br>";

if (file_exists("i/" . $_FILES["file"]["name"]))
 echo $_FILES["file"]["name"] . " already exists. ";
 "i/" . $_FILES["file"]["name"]);
 echo "Stored in: " . "i/" . $_FILES["file"]["name"];
echo "Invalid file";

How can I add a random image name? Preferably 6-8 digits of only #0-9. That way the image name is simple instead of being specific to capital letters etc. Please be as specific with directions as possible, because I'm still learning PHP, and that's one of the main reasons I'm making this website.



P.S. Bonus points if you can tell me how to redirect straight to the image without the page that shows the file info.

Edited by Ken_Turner
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