diff --git a/printlib.php b/printlib.php
index c00e569..452da54 100644
--- a/printlib.php
+++ b/printlib.php
@@ -5,6 +5,7 @@ define("ESC", "\x1b");
 define("GS", "\x1d");
 define("LF", "\x0a");
 define("PORT", "/dev/usb/lp0");
+function rawlen($data) {}
 function initprint() {
     return file_put_contents(PORT, ESC . "@");
 }
@@ -16,7 +17,18 @@ function println($data) {
     }
 }
 function printcode39($data) {}
-function printcode128($data) {}
+function printcode128($data) {
+    $lp=fopen(PORT, 'w');
+    fwrite($lp, "\x1b@");
+    fwrite($lp, "\x1dh\x50");
+    fwrite($lp, "\x1dH\x02");
+    fwrite($lp, "\x1df\x01");
+    fwrite($lp, "\x1dk\x49");
+    fwrite($lp, rawlen($data))
+    fwrite($lp, $data);
+    fwrite($lp, "\x0a");
+    fclose($lp);
+}
 function printean13($data) {}
 function printean8($data) {}
 ?>
\ No newline at end of file