SNMP::__construct()
(PHP 5 >= 5.4.0, PHP 7)
Creates SNMP instance representing session to remote SNMP agent
说明
The function description goes here.
参数
- $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 for$hostnameit 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.
返回值
Returns SNMP object representing remote SNMP agent.
错误/异常
SNMP::__construct() throws an exception when parameters count or types are wrong or unknown SNMP protocol version specified.
范例
Example #1 Fetching sysLocation
<?php $session = new SNMP(SNMP::VERSION_1, "127.0.0.1", "public"); $sysdescr = $session->get("sysDescr.0"); echo "$sysdescr\n"; ?>
以上例程的输出类似于:
STRING: Test server
参见
- SNMP::close() Close SNMP session