Net_Portscan::checkPort() – check for available service


require_once 'Net/Portscan.php';

boolean Net_Portscan::checkPort ( string $host , integer $port , integer $timeout = 30 )


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

    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.

Return value

boolean - Returns TRUE on success, FALSE on failure.


This function can be called statically.


Using checkPort

require_once "Net_Portscan/Portscan.php";

if (
Net_Portscan::checkPort("localhost"80) == NET_PORTSCAN_SERVICE_FOUND) {
"There is a service on localhost on port 80 (" Net_Portscan::getService(80) . ").\n";
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Last updated: Sat, 16 Feb 2019 — Download Documentation
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