Viewing file:  random.php (3.44 KB) -rwxr-xr-x
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<?php
//////////////////////////////////////////////////////////////
/// phpThumb() by James Heinrich <info@silisoftware.com> //
// available at http://phpthumb.sourceforge.net ///
//////////////////////////////////////////////////////////////
/// //
// phpThumb.demo.random.php //
// James Heinrich <info@silisoftware.com> //
// //
// Display a random image from a specified directory. //
// Run with no parameters for usage instructions. //
// //
//////////////////////////////////////////////////////////////
function SelectRandomImage($dirname='.', $portrait=true, $landscape=true, $square=true) {
// return a random image filename from $dirname
// the last 3 parameters determine what aspect ratio of images
// may be returned
$possibleimages = array();
if ($dh = opendir($dirname)) {
while ($file = readdir($dh)) {
if (is_file($dirname.'/'.$file) && eregi('\.(jpg|jpeg|gif|png|tiff|bmp)$', $file)) {
if ($gis = @GetImageSize($dirname.'/'.$file)) {
if ($portrait && ($gis[0] < $gis[1])) {
// portrait
$possibleimages[] = $file;
} elseif ($landscape && ($gis[0] > $gis[1])) {
// landscape
$possibleimages[] = $file;
} elseif ($square) {
// square
$possibleimages[] = $file;
}
}
}
}
closedir($dh);
}
if (empty($possibleimages)) {
return false;
}
if (phpversion() < '4.2.0') {
mt_srand(time());
}
$randkey = mt_rand(0, count($possibleimages) - 1);
return realpath($dirname.'/'.$possibleimages[$randkey]);
}
if (@$_REQUEST['dir']) {
if (is_dir($_REQUEST['dir'])) {
if (!@$_REQUEST['o']) {
$_REQUEST['o'] = 'PLS';
}
$_REQUEST['o'] = strtoupper($_REQUEST['o']);
$portrait = (strpos(@$_REQUEST['o'], 'P') !== false);
$landscape = (strpos(@$_REQUEST['o'], 'L') !== false);
$square = (strpos(@$_REQUEST['o'], 'S') !== false);
$randomSRC = SelectRandomImage($_REQUEST['dir'], $portrait, $landscape, $square);
if (strtoupper(substr(PHP_OS, 0, 3)) == 'WIN') {
$randomSRC = str_replace('\\', '/', eregi_replace('^'.realpath(@$_SERVER['DOCUMENT_ROOT']), '', realpath($randomSRC)));
} else {
$randomSRC = str_replace(realpath(@$_SERVER['DOCUMENT_ROOT']), '', realpath($randomSRC));
}
$otherParams = array();
foreach ($_GET as $key => $value) {
if (($key == 'dir') || ($key == 'o')) {
continue;
}
if (is_array($value)) {
foreach ($value as $vkey => $vvalue) {
$otherParams[] = urlencode($key).'['.urlencode($vkey).']='.urlencode($vvalue);
}
} else {
$otherParams[] = urlencode($key).'='.urlencode($value);
}
}
header('Location: ./phpThumb/phpThumb.php?src='.urlencode($randomSRC).'&'.implode('&', $otherParams));
exit;
} else {
die($_REQUEST['dir'].' is not a directory');
}
} else {
echo '<html><body>Usage: <b>'.basename($_SERVER['PHP_SELF']).'?dir=<i><directory></i>&<i><phpThumb parameters></i></b>&o=<i>(P|L|S)</i><br><br>Examples:<ul>';
echo '<li>'.basename($_SERVER['PHP_SELF']).'?./images/&o=L <i>(landscape images only)</i></li>';
echo '<li>'.basename($_SERVER['PHP_SELF']).'?./images/&o=PS <i>(portrait or square images only)</i></li>';
echo '</ul></body></html>';
}
?>
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