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# snmpwalkoid

(PHP 3>= 3.0.8, PHP 4 , PHP 5)

snmpwalkoid -- Query for a tree of information about a network entity

## Description

array snmpwalkoid ( string hostname, string community, string object_id [, int timeout [, int retries]])

Returns an associative array with object ids and their respective object value starting from the object_id as root and `FALSE` on error.

snmpwalkoid() function is used to read all object ids and their respective values from an SNMP agent specified by the hostname. Community specifies the read community for that agent. A `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.

The existence of snmpwalkoid() and snmpwalk() has historical reasons. Both functions are provided for backward compatibility.

`<?php $a = snmpwalkoid("127.0.0.1", "public", ""); ?>`

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

`<?php for (reset($a); $i = key($a); next($a)) { echo "$i: $a[$i]<br />\n"; } ?>`

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