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pppd and PHP

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linux-howto

http://ubuntuforums.org – Hi I need to establish a connection with a modem by php and be sure that the connection is good. I make a pppd script that works well if I launch it from the bash. However, when I had difficulties when I wanted to use PHP. I use the exec function exec('/usr/sbin/pppd call script', $result) but PHP doesn't wait for the command to terminate, so I only can try a few second later to manually check if it is ok and I cannot read the return message ($result is empty). I tried using the updetach option in the pppd script. With it, PHP wait for the function, I can read the return message b (Hardware)