Notice: Undefined index: data in /var/www/html/invoice/printInvoice.php on line 10

Notice: Uninitialized string offset: 0 in /var/www/html/invoice/printInvoice.php on line 62

Warning: file_get_contents(long_bill.html): failed to open stream: No such file or directory in /var/www/html/invoice/printInvoice.php on line 165