PHP Conference Ehime 2026

    snmp3_walk

    (PHP 4, PHP 5, PHP 7, PHP 8)

    snmp3_walk — Fetch all the SNMP objects from an agent

    Beschreibung

    function snmp3_walk(
        string $hostname,
        string $security_name,
        string $security_level,
        string $auth_protocol,
        string $auth_passphrase,
        string $privacy_protocol,
        string $privacy_passphrase,
        array|string $object_id,
        int $timeout = -1,
        int $retries = -1
    ): array|false

    snmp3_walk() function is used to read all the values from an SNMP agent specified by the hostname.

    The authentication and privacy arguments must always be passed, but their values are ignored when security_level does not use them.

    Parameter-Liste

    hostname

    The hostname of the SNMP agent (server).

    security_name

    The security name, usually some kind of username.

    security_level

    The security level: "noAuthNoPriv", "authNoPriv", or "authPriv".

    auth_protocol

    The authentication protocol: "MD5", "SHA", "SHA256", or "SHA512".

    auth_passphrase

    The authentication passphrase.

    privacy_protocol

    The privacy protocol: "DES", or "AES", also accepted as "AES128". "AES192", "AES192C", "AES256", and "AES256C" are accepted when supported by the Net-SNMP library.

    privacy_passphrase

    The privacy passphrase.

    object_id

    If an empty string, object_id is taken as .1.3.6.1.2.1, the root of the SNMP objects tree, and all objects under that tree are returned as an array.

    If object_id is specified, all the SNMP objects below that object_id are returned.

    timeout

    The number of microseconds until the first timeout.

    retries

    The number of times to retry if timeouts occur.

    Rückgabewerte

    Returns an array of SNMP object values starting from the object_id as root or false on error.

    Changelog

    Version Beschreibung
    8.6.0 The privacy protocol now accepts "AES192", "AES192C", "AES256", and "AES256C" when supported by the Net-SNMP library.
    8.1.0 The authentication protocol now accepts "SHA256" and "SHA512" when supported by the Net-SNMP library.

    Beispiele

    Beispiel #1 snmp3_walk() Example

    <?php
$ret = snmp3_walk('localhost', 'james', 'authPriv', 'SHA', 'secret007', 'AES', 'secret007', 'IF-MIB::ifName');
var_export($ret);
?>

    Above function call would return all the SNMP objects from the SNMP agent running on localhost: 

    array (
  0 => 'STRING: lo',
  1 => 'STRING: eth0',
  2 => 'STRING: eth2',
  3 => 'STRING: sit0',
  4 => 'STRING: sixxs',
)

    Siehe auch

    • snmp3_real_walk() - Return all objects including their respective object ID within the specified one

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