Simple Network Management Protocol (SNMP)

SNMP stands for ‘Simple Network Management Protocol’. The SNMP extension provides a very simple and easily usable toolset for managing remote devices via the Simple Network Management Protocol.

<?php
    $syscontact = snmp2_get(127.0.0.1, public, system.SysContact.0);
?>

Documentation

See also https://reintech.io/blog/a-guide-to-php-snmp-library-for-simple-network-management-protocol