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neompc/lib/image.php
2007-05-14 21:34:24 +00:00

41 lines
1.0 KiB
PHP

<?php
// The file
$filename = $_GET['file'];
// Set a maximum height and width
$width = $_GET['size'];
$height = $_GET['size'];
// Content type
header('Content-type: image/jpeg');
$script_root = substr($_SERVER["SCRIPT_FILENAME"], 0, strrpos(substr($_SERVER["SCRIPT_FILENAME"], 0, strrpos($_SERVER["SCRIPT_FILENAME"], '/')), '/'));
$cache_file_name = "$script_root/imagecache/" . md5($filename . $width) . ".jpg";
if (!file_exists($cache_file_name)) {
// Get new dimensions
list($width_orig, $height_orig) = getimagesize($filename);
$ratio_orig = $width_orig/$height_orig;
if ($width/$height > $ratio_orig) {
$width = $height*$ratio_orig;
} else {
$height = $width/$ratio_orig;
}
// Resample
$image_p = imagecreatetruecolor($width, $height);
$image = imagecreatefromjpeg($filename);
imagecopyresampled($image_p, $image, 0, 0, 0, 0, $width, $height, $width_orig, $height_orig);
// Output
imagejpeg($image_p, $cache_file_name, 95);
}
echo file_get_contents($cache_file_name);
?>