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This function checks if there is a service available at the specified port on the specified machine.
string $host - address of the host to check
string $port - port to check
string $timeout - time in seconds to wait for response from host
Wichtig: If you run into timeout problems despite setting this parameter to a reasonably high value, you need to make sure that the configuration directive default_socket_timeout in the php.ini configuration file does not force the maximum timeout down to a lower value.
Beispiel 49-1. Using checkPort
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Net_Portscan | Nach oben | Net_Portscan::checkPortRange() |