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snmp2_walk

(PHP >= 5.2.0)

snmp2_walk — Fetch all the SNMP objects from an agent

array snmp2_walk ( string $host , string $community , string $object_id [, string $timeout = 1000000 [, string $retries = 5 ]] )

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

host -

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.

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

$a = snmp2_walk("127.0.0.1", "public", "");
foreach ($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

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