Sometimes we need to monitor the running status of the server. ZABBIX is such an online monitoring system. At the same time, ZABBIX provides API and other methods for other programs to obtain data. This article uses PHP example code sharing to let everyone know how to obtain server information through ZABBIX.
Since we have installed the zabbix system, I only need to know how to obtain the information. In summary, there are two ways to obtain it.
Installation can refer to: Detailed introduction to installing zabbix on centos7
1. Obtain host information through ZABBIX API
The host information obtained in this way is relatively It is relatively new (updated every minute). However, because the interface needs to be requested every time, it is relatively slow. If there are a large number of hosts queried concurrently, it will be very slow.
The official documentation of the open source monitoring system ZABBIX provides a rich API. I use Guzzle 6 for http requests here. Of course, you can also use PHP's built-in curl function to write an http request yourself, which is very simple.
#1. User authentication to obtain token.
$responst = $this->httpClient->request('POST', 'http://zabbix.xxxxx.com/zabbix/api_jsonrpc.php', [ 'headers' => [ 'Content-Type' => 'application/json-rpc', ], 'json' => [ 'jsonrpc' => '2.0', 'method' => 'user.login', 'params' => [ "user"=> 'your username', "password"=> 'your password' ], 'id' => 1, 'auth' => null ], ]);
Since this is user authentication, all auth can be written directly to null. The return result is:
{ "jsonrpc": "2.0", "result": "0424bd59b807674191e7d77572075f33", "id": 1 }
The result is token, which is needed in subsequent requests.
#2. Obtain the hostid based on the IP of the host.
$responst = $this->httpClient->request('POST', 'http://zabbix.xxxxx.com/zabbix/api_jsonrpc.php', [ 'headers' => [ 'Content-Type' => 'application/json-rpc', ], 'json' => [ 'jsonrpc' => '2.0', 'method' => 'host.get', 'params' => [ "output" => ["hostid"], "filter" => [ "host" => '192.168.1.1' ] ], 'id' => 1, 'auth' =>"0424bd59b807674191e7d77572075f33" ], ]);
The above output is a restricted return item. If you want to return all host information, you can remove output . The return result of the above request is:
{ "jsonrpc": "2.0", "result": [ { "hostid": "10160", } ], "id": 1 }
$items = array( 'vm.memory.size[available]', // 内存可用值 (KB) 'vm.memory.size[total]', // 内存总数 (KB) 'system.cpu.util[,idle]', // 当前CPU IDLE值 (%) 'vfs.fs.size[/,used]', // 当前 / 盘使用值 (KB) 'vfs.fs.size[/,total]', // 当前 / 盘总数 (KB) );
$item_ids = array(); foreach ($items as $item) { $responst = $this->httpClient->request('POST', $this->url, [ 'headers' => [ 'Content-Type' => 'application/json-rpc', ], 'json' => [ 'jsonrpc' => $this->jsonrpc, 'method' => $this->METHOD_ITEM_GET, 'params' => [ "output" => 'extend', "hostids" => $this->hostid, "search" => [ "key_" => $item ], 'sortfield' => 'name' ], 'id' => 1, 'auth' => $this->token ], ]); $body = json_decode($responst->getBody()->getContents()); $item_ids[] = $body->result[0]->itemid; }The returned result is:
{ "jsonrpc": "2.0", "result": [ { "itemid": "23298", "type": "0", "snmp_community": "", "snmp_oid": "", "hostid": "10084", "name": "Context switches per second", "key_": "vm.memory.size[available]", "delay": "60", "history": "7", "trends": "365", "lastvalue": "2552", "lastclock": "1351090998", "prevvalue": "2641", "state": "0", "status": "0", "value_type": "3", "trapper_hosts": "", "units": "sps", "multiplier": "0", "delta": "1", "snmpv3_securityname": "", "snmpv3_securitylevel": "0", "snmpv3_authpassphrase": "", "snmpv3_privpassphrase": "", "snmpv3_authprotocol": "0", "snmpv3_privprotocol": "0", "snmpv3_contextname": "", "formula": "1", "error": "", "lastlogsize": "0", "logtimefmt": "", "templateid": "22680", "valuemapid": "0", "delay_flex": "", "params": "", "ipmi_sensor": "", "data_type": "0", "authtype": "0", "username": "", "password": "", "publickey": "", "privatekey": "", "mtime": "0", "lastns": "564054253", "flags": "0", "interfaceid": "1", "port": "", "description": "", "inventory_link": "0", "lifetime": "0", "evaltype": "0" } ], "id": 1 }
$items_result = array(); foreach ($this->itemids as $k=>$itemid) { if($this->items[$k] == 'system.cpu.util[,idle]') { $history = 0; }else { $history = 3; } $responst = $this->httpClient->request('POST', 'http://zabbix.xxxxx.com/zabbix/api_jsonrpc.php', [ 'headers' => [ 'Content-Type' => 'application/json-rpc', ], 'json' => [ 'jsonrpc' => '2.0', 'method' => 'history.get', 'params' => [ "output" => 'extend', "history" => $history, "itemids" => $itemid, "sortfield" => 'clock', 'sortorder' => 'DESC', 'limit' => '1', ], 'id' => 1, 'auth' => $this->token ], ]); $body = json_decode($responst->getBody()->getContents()); if(property_exists($body, 'result')) { $items_result[$this->items[$k]] = $body->result[0]->value; }else { Log::error(json_encode($body)); return false; } }
{ "jsonrpc": "2.0", "result": [ { "itemid": "23296", "clock": "1351090996", "value": "0.0850", "ns": "563157632" }, { ], "id": 1 }
array:5 [▼ "system.cpu.util[,idle]" => 98.9622 "vfs.fs.size[/,total]" => "42141548544" "vfs.fs.size[/,used]" => "6917797137" "vm.memory.size[available]" => "57394996906" "vm.memory.size[total]" => "67439050752" ]
## 2. Obtain information directly from the database
The data obtained in this way is not the latest (updated every hour). But the query speed has been greatly improved.
Because I wrote the code using the laravel framework, I will just be lazy and not write native sql statements. Everyone can just look at it.
1. Get the hostid from the hosts table through IP
$host_id = Host::where('host', '10.50.150.80')->value('hostid');
The return result is: 11101
2. Obtain the itemid of the items monitoring item from the items table through hostid
$items = array( 'vm.memory.size[available]', // 内存可用值 (KB) 'vm.memory.size[total]', // 内存总数 (KB) 'system.cpu.util[,idle]', // 当前CPU IDLE值 (%) 'vfs.fs.size[/,used]', // 当前 / 盘使用值 (KB) 'vfs.fs.size[/,total]', // 当前 / 盘总数 (KB) ); $item_ids = Item::where('hostid', 11106)->whereIn('key_', $items)->pluck('itemid', 'key_');
The return result is:
Collection {#183 ▼ #items: array:5 [▼ "system.cpu.util[,idle]" => 152511 "vfs.fs.size[/,total]" => 155584 "vfs.fs.size[/,used]" => 155587 "vm.memory.size[available]" => 152533 "vm.memory.size[total]" => 152534 ] }
3. Obtain the itemid from the trends table or trends_uint through itemid Table to obtain historical information
$result = array(); foreach ($item_ids as $key=>$item_id) { if($key == 'system.cpu.util[,idle]') { $value = Trend::where('itemid', $item_id)->orderBy('clock', 'DESC')->value('value_avg'); }else { $value = TrendsUint::where('itemid', $item_id)->orderBy('clock', 'DESC')->value('value_avg'); } $result[$key] = $value; }
##The returned result is:
array:5 [▼ "system.cpu.util[,idle]" => 98.9622 "vfs.fs.size[/,total]" => "42141548544" "vfs.fs.size[/,used]" => "6917797137" "vm.memory.size[available]" => "57394996906" "vm.memory.size[total]" => "67439050752" ]
Related recommendations:
Detailed introduction to installing zabbix on centos7
##zabbix implementation of email alarm example tutorial
Detailed explanation of examples of zabbix monitoring server time issues
The above is the detailed content of Use ZABBIX API to obtain server information. For more information, please follow other related articles on the PHP Chinese website!

PHP remains important in modern web development, especially in content management and e-commerce platforms. 1) PHP has a rich ecosystem and strong framework support, such as Laravel and Symfony. 2) Performance optimization can be achieved through OPcache and Nginx. 3) PHP8.0 introduces JIT compiler to improve performance. 4) Cloud-native applications are deployed through Docker and Kubernetes to improve flexibility and scalability.

PHP is suitable for web development, especially in rapid development and processing dynamic content, but is not good at data science and enterprise-level applications. Compared with Python, PHP has more advantages in web development, but is not as good as Python in the field of data science; compared with Java, PHP performs worse in enterprise-level applications, but is more flexible in web development; compared with JavaScript, PHP is more concise in back-end development, but is not as good as JavaScript in front-end development.

PHP and Python each have their own advantages and are suitable for different scenarios. 1.PHP is suitable for web development and provides built-in web servers and rich function libraries. 2. Python is suitable for data science and machine learning, with concise syntax and a powerful standard library. When choosing, it should be decided based on project requirements.

PHP is a scripting language widely used on the server side, especially suitable for web development. 1.PHP can embed HTML, process HTTP requests and responses, and supports a variety of databases. 2.PHP is used to generate dynamic web content, process form data, access databases, etc., with strong community support and open source resources. 3. PHP is an interpreted language, and the execution process includes lexical analysis, grammatical analysis, compilation and execution. 4.PHP can be combined with MySQL for advanced applications such as user registration systems. 5. When debugging PHP, you can use functions such as error_reporting() and var_dump(). 6. Optimize PHP code to use caching mechanisms, optimize database queries and use built-in functions. 7

The reasons why PHP is the preferred technology stack for many websites include its ease of use, strong community support, and widespread use. 1) Easy to learn and use, suitable for beginners. 2) Have a huge developer community and rich resources. 3) Widely used in WordPress, Drupal and other platforms. 4) Integrate tightly with web servers to simplify development deployment.

PHP remains a powerful and widely used tool in modern programming, especially in the field of web development. 1) PHP is easy to use and seamlessly integrated with databases, and is the first choice for many developers. 2) It supports dynamic content generation and object-oriented programming, suitable for quickly creating and maintaining websites. 3) PHP's performance can be improved by caching and optimizing database queries, and its extensive community and rich ecosystem make it still important in today's technology stack.

In PHP, weak references are implemented through the WeakReference class and will not prevent the garbage collector from reclaiming objects. Weak references are suitable for scenarios such as caching systems and event listeners. It should be noted that it cannot guarantee the survival of objects and that garbage collection may be delayed.

The \_\_invoke method allows objects to be called like functions. 1. Define the \_\_invoke method so that the object can be called. 2. When using the $obj(...) syntax, PHP will execute the \_\_invoke method. 3. Suitable for scenarios such as logging and calculator, improving code flexibility and readability.


Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

SAP NetWeaver Server Adapter for Eclipse
Integrate Eclipse with SAP NetWeaver application server.

DVWA
Damn Vulnerable Web App (DVWA) is a PHP/MySQL web application that is very vulnerable. Its main goals are to be an aid for security professionals to test their skills and tools in a legal environment, to help web developers better understand the process of securing web applications, and to help teachers/students teach/learn in a classroom environment Web application security. The goal of DVWA is to practice some of the most common web vulnerabilities through a simple and straightforward interface, with varying degrees of difficulty. Please note that this software

SublimeText3 English version
Recommended: Win version, supports code prompts!

Notepad++7.3.1
Easy-to-use and free code editor

Atom editor mac version download
The most popular open source editor