You should read up on socket_select
On Tue, 8 Oct 2002, Scott Dowd wrote:
> I have a PHP application that goes out an checks all our servers via
> SNMP when requested. Trouble is, if the server is not available, the
> fsockopen never times out and therefore never moves onto the next
> server. I am running 4.2.3 on IIS (NT4). I read there was a bug with
> previous versions, but I have just upgraded and still seems to be a
> problem ...... Script times out.
>
> $fp = fsockopen ($servername, 524, $errno, $errstr, 30);
>
> if (!$fp) {
> ........
> }
>
> else {
> ........
> }
>
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