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PHP3 UCD-SNMP Extension

What is it?

This is an extension library which ties the ucd-snmp library to
PHP3.  Only snmpget and snmpwalk are supported at this time.  If
you need other functions, feel free to add them and send me a
patch. ([e-mail])


Installation

You first need to get a hold of ucd-snmp-3.2.  This extension 
hasn't been tested with any other version.
Compile and install it.  Make sure the following header files from
the ucd-3.2/snmplib directory get copied to /usr/local/include, 
or wherever dl/Makefile tries to include files from.

asn1.h, snmp_api.h, snmp_client.h, snmp_impl.h, snmp.h, parse.h

Then type: make snmp.so
from the php3/dl directory.

If there is no Makefile, run ./setup

You may also need to add some -I<path> statements to the CC line.


How to call it from PHP3

On the page where you need to make an SNMP call, load the library:

   <? dl("<path>/snmp.so"); ?>

To fetch an object:

   <? $value = snmpget("hostname","community","object_id"); ?>

For example: snmpget("127.0.0.0","public","system.sysContact.0")

The arguments to snmpwalk() are identical.  The difference being that the
returned value is an array of snmp objects.  You can step through them
with a loop.

For example:   $a = snmpwalk("127.0.0.0","public","");
               for($i=0;$i<count($a);$i++) {
                   echo $a[$i];
               }