Re: Passing Values between C App and PHP

Am 21.06.2009 um 23:31 schrieb Nathan Nobbe:

On Sun, Jun 21, 2009 at 3:25 PM, Tobias Krieger <tobias.krieger@teamfrednet.orgwrote: Hi, I've recently written an eMail regarding I2C and PHP - since I haven't found a nice solution yet, I'm considering writting the I2C part (opening device, writing, reading,...) in C (that's simple) and to recieve (and returning) the values through PHP and Javascript. E.g. Website (PHP/Javascript) -> set a new motorspeed -> PHP passes the new speed to C Application -> C AP opens and writes the new speed onto the I2C Bus -> Motor executes -> returns ack ->---- Is this somehow, and not complicated possible? if the C program is written such that it can start and stop on every request rather than as a daemon, its as simple as shell_exec(). write your C app to take args over the cli and then pass them in through the call: <?php $result = shell_exec('myI2C -speed 50'); ?> something of that nature. -nathan This would be a nice and fast solution, but unfortunatelly, it's like that the C programm needs to surveilance the hardware all the time (controlling values,...) hence, it would run more as a "daemon".

thx, tobias