Andrew Hucks wrote:
Is it possible to rename images dynamically?

Say that I had something like image1.png, and I don't want to rename
it on the server. I'm working on an image rotater for a forum that
doesn't allow anything but image files as signatures.

Here's my code so far:



//add images. not too hard.
$images = array("image1.png", "image2.png", "image3.png");
//which one do we gets?
$show = rand(0, (count($images)-1));
//i r got u picture.
echo '<img src="'.$images[$show].'"/>';


I used mod_rewrite, which makes it from image.php to image.png. But,
because the files aren't named image.png, it doesn't work. I need to
figure out somethign between lines 8 and 10 to change the file name to

Use mod_rewrite so that request for image.png is handled by a script, image.php

image.php then randomly picks a image file from list, sends the appropriate image header, and reads the file sending the content to the browser. IE -

function sendimage($impath) {
// requires fedora rpm : php-pecl-Fileinfo
  $fi = new finfo(FILEINFO_MIME);
  $mime_type = $fi->buffer(file_get_contents($impath));
  $imageOutput = "";
  if ($fp = fopen( $impath , 'rb' )) {
    while ($l = fgets($fp)) {
      $imageOutput .= $l;
    $outputLen = strlen($imageOutput);
    header("Content-Length: $outputLen");
    header("Content-type: $mime_type");
    print $imageOutput;
    } else {
    // for whatever reason we failed

Is there a way to do this?

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