PHP Socket programming to read data from MCU

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http://stackoverflow.com – Quick question, I am new to socket, so i was wondering is there a way to read data from a MCU (Atmel)? I am running a Linux and I can connect an Atmel through RS232, or USB to my computer(server). Is there a way that I can directly read the data taht is coming from MCU (USB/COM) to my computer and process them? Cheers (HowTos)