How can I send data from a web page to a serial port?

Question

I have a web page which includes a basic content. I can chance its format but it is PHP now. I want to send this data to one of the serial ports of my computer (as a visitor of PHP page).

I need a code for transferring this data from internet to one of the serial-ports. It can be C++, javascript, C# or anything else.

I am using Windows (as a visitor of web page). So, I need to send datas to serial port of visitor's computer not server's. Reading is not necessary.

Which program and process is the best option to do this properly? I need example code parts that they work just fine!

Solution

There is a library for PHP that supports writing to serial port.

See here.

More:

http://php.net/manual/en/function.fopen.php#20935

See this question for more discussion: How to Read RS232 Serial Port in PHP like this QBasic Program

Update:

To do this on windows see this tutorial: http://blog.950buy.com/article/php-use-rs232-serial-communication-to-send-file/

Also this question: Serial comm with PHP on Windows