SNMP::__construct
(PHP 5 >= 5.4.0, PHP 7, PHP 8)
SNMP::__construct — Creates SNMP instance representing session to remote SNMP agent
Description
int
$version,string
$hostname,string
$community,int
$timeout = -1,int
$retries = -1)
The function description goes here.
Parameters
-
version -
SNMP protocol version:
SNMP::VERSION_1,SNMP::VERSION_2C,SNMP::VERSION_3. -
hostname -
The SNMP agent.
hostnamemay be suffixed with optional SNMP agent port after colon. IPv6 addresses must be enclosed in square brackets if used with port. If FQDN is used forhostnameit will be resolved by php-snmp library, not by Net-SNMP engine. Usage of IPv6 addresses when specifying FQDN may be forced by enclosing FQDN into square brackets. Here it is some examples:IPv4 with default port 127.0.0.1 IPv6 with default port ::1 or [::1] IPv4 with specific port 127.0.0.1:1161 IPv6 with specific port [::1]:1161 FQDN with default port host.domain FQDN with specific port host.domain:1161 FQDN with default port, force usage of IPv6 address [host.domain] FQDN with specific port, force usage of IPv6 address [host.domain]:1161 -
community -
The purpuse of
communityis SNMP version specific:SNMP::VERSION_1 SNMP community SNMP::VERSION_2C SNMP community SNMP::VERSION_3 SNMPv3 securityName -
timeout -
The number of microseconds until the first timeout.
-
retries -
The number of retries in case timeout occurs.
Errors/Exceptions
SNMP::__construct() throws an exception when parameters count or types are wrong or unknown SNMP protocol version specified.
Examples
Example #1 Fetching sysLocation
<?php
$session = new SNMP(SNMP::VERSION_1, "127.0.0.1", "public");
$sysdescr = $session->get("sysDescr.0");
echo "$sysdescr\n";
?>
The above example will output something similar to:
STRING: Test server
See Also
- SNMP::close() - Close SNMP session
