snmp2_walk

(PHP >= 5.2.0, PHP 7, PHP 8)

snmp2_walk — Fetch all the SNMP objects from an agent

Description

snmp2_walk(
    string $hostname,
    string $community,
    array|string $object_id,
    int $timeout = -1,
    int $retries = -1
): array|false

snmp2_walk() function is used to read all the values from an SNMP agent specified by the hostname.

Parameters

hostname
The SNMP agent (server).
community
The read community.
object_id
If null, object_id is taken as 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.

Return Values

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

Examples

Example #1 snmp2_walk() Example

<?php
$a = snmp2_walk("127.0.0.1", "public", "");

foreach ($a as $val) {
echo "$val\n";
}

?>

Above function call would return all the SNMP objects from the SNMP agent running on localhost. One can step through the values with a loop

See Also

  • snmp2_real_walk() - Return all objects including their respective object ID within the specified one