Description

This function checks if there are services available at the specified ports on the specified machine.

Parameter

• string $host - address of the host to check

• string $minPort - lowest port to test to check

• string $maxPort - highest port to test to check

• string $timeout - time in seconds to wait for every response from host

  Important: 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

array - An associative array containing the scanning results for each port.

Note

This function can be called statically.

Example

require_once "Net_Portscan/Portscan.php";

echo "Scanning localhost ports 70-90\n";
$result = Net_Portscan::checkPortRange("localhost", 70, 90);

foreach ($result as $port => $element) {
    if ($element == NET_PORTSCAN_SERVICE_FOUND) {
        echo "A service has been found on port " . $port . ".\n";
    } else {
        echo "No service has been found on port " . $port . ".\n";
    }
}