SNMP::__construct

    (PHP 5 >= 5.4.0, PHP 7, PHP 8)

    SNMP::__construct — Creates SNMP instance representing session to remote SNMP agent

    Descripción

    public SNMP::__construct(
        int $version,
        string $hostname,
        string $community,
        int $timeout = -1,
        int $retries = -1
    )

    Creates SNMP instance representing session to remote SNMP agent.

    Parámetros

    version

    SNMP protocol version: SNMP::VERSION_1, SNMP::VERSION_2C, SNMP::VERSION_3.

    hostname

    The SNMP agent. hostname may be suffixed with optional SNMP agent port after colon. IPv6 addresses must be enclosed in square brackets if used with port. If FQDN is used for hostname it will be resolved by PHP SNMP extension, not by Net-SNMP engine. Usage of IPv6 addresses when specifying FQDN may be forced by enclosing FQDN into square brackets. Here are some examples:

    IPv4 with default port127.0.0.1
    IPv6 with default port::1 or [::1]
    IPv4 with specific port127.0.0.1:1161
    IPv6 with specific port[::1]:1161
    FQDN with default porthost.domain
    FQDN with specific porthost.domain:1161
    FQDN with default port, force usage of IPv6 address[host.domain]
    FQDN with specific port, force usage of IPv6 address[host.domain]:1161

    community

    Specifies the security level for given version. The purpose of community access string is SNMP version specific:

    SNMP::VERSION_1 public for read-only permission or private for read-write
    SNMP::VERSION_2C public for read-only permission or private for read-write
    SNMP::VERSION_3 SNMPv3 security name, may be one of: noAuthNoPriv, authNoPriv (an auth passphrase and auth protocol are required), or authPriv (both an auth passphrase and a protocol, as well as a privacy passphrase and protocol are required)
    SNMPv3 requires to configure security-related session parameters with the SNMP::setSecurity() method.
    timeout

    The number of microseconds until the first timeout.

    retries

    The number of retries in case timeout occurs.

    Errores/Excepciones

    SNMP::__construct() throws an exception when parameters count or types are wrong or unknown SNMP protocol version specified.

    Ejemplos

    Ejemplo #1 Fetching the physical location of the host

    <?php

    $session     = new SNMP(SNMP::VERSION_1, "127.0.0.1", "public");
    $sysdescr = $session->get("sysDescr.0");
    echo     "$sysdescr\n";

    ?>

    El resultado del ejemplo sería algo similar a:

    STRING: Test server

    Ver también

    Improve This Page

    Learn How To Improve This Page • Submit a Pull Request • Report a Bug
    ＋add a note

    User Contributed Notes

    There are no user contributed notes for this page.
    To Top