Online PHP editor | refs for BkOlP

<?php $img = imagecreatefromjpeg('http://logicnet.dk/Analyzer/help/Lenna.jpg'); $msg = ''; $msgchar = 0; for($i=0;$i<8;$i+=8) { $msgchar = (($msgchar << 1) | (1 & imagecolorat($img, $i , 0))); if(($i+8) % 64 == 0) { $msg .= chr($msgchar); $msgchar = 0; } } echo $msg;