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I'm trying to send an SMS via a 3G Modem with php, but I can only access com1. I can't access com3 (the 3G modem) because it's a virtual serial port.

Does anyone know how to access a virtual serial port using PHP?

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All serial ports should be accessible the same way, virtual or not.

If accessing COM3 does not work, try COM3: or \\.\COM3 – as in fopen("\\\\.\\COM3", ...).

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i do not need to set something in php.ini or httpd.conf? u already did it? – Kuby Dec 1 '11 at 23:13

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