Keskustelu: Nettisivujen teko: Kuvan pienennys ja laatu

** kuva.php
<?php
// File and new size
$filename = $_GET['file'];

// Content type
header('Content-type: image/jpeg');

// Get new sizes
list($width, $height) = getimagesize($filename);
$newwidth = 570;
$newheight = 456;

// Load
$thumb = imagecreatetruecolor($newwidth, $newheight);
$source = imagecreatefromjpeg($filename);

// Resize
imagecopyresized($thumb, $source, 0, 0, 0, 0, $newwidth, $newheight, $width, $height);

// Output
imagejpeg($thumb);
imagedestroy($thumb);
?>