search

monolog是php下比较全又容易扩展的记录日志组件。目前有包括Symfony 、Laravel、 CakePHP等诸多知名php框架都内置了monolog。可以通过github clone https://github.com/Seldaek/monolog.git 或者 composer安装  require monolog/monolog '~1.7'。monolog代码结果如下:

ErrorHandler.php(设置程序的error hander 、exception hander 给mogolog接管)
Formatter/ (内置的日志显示格式)
Handler/ (各种日志处理类,如写文件、发邮件、写socket、写队列等)
Logger.php (log 处理接口)
Processor/ (内置的处理日志类)
Registry.php --


一个例子用在线上错误日志记录上,可以替换默认错误日志的处理方式

[php]  view plain copy

  1. require __DIR__ . '/vendor/autoload.php';  
  2. use Monolog\Logger;  
  3. use Monolog\Handler\StreamHandler;  
  4. use Monolog\Handler\BufferHandler;  
  5. use Monolog\ErrorHandler;  
  6. use Monolog\Processor\MemoryUsageProcessor;  
  7.   
  8.   
  9. $logger = new Logger('error_logger');  
  10. $stream = new StreamHandler(__DIR__.'/error.log', Logger::ERROR);  
  11. $logger->pushHandler(new BufferHandler($stream, 10, Logger::DEBUG, true, true));//用BufferHandler设置同一请求下日志数达到10条再写一次文件  
  12. ErrorHandler::register($logger);  
  13.   
  14. //code...  

monolog完全按照面向对象思想写的,它本身有符合fig的psr-3 prs-4规则,所以扩展起来非常方便,下面是作者文档上写的一个日志入数据库的一个例子

[php]  view plain copy

  1. use Monolog\Logger;  
  2. use Monolog\Handler\AbstractProcessingHandler;  
  3.   
  4. class PDOHandler extends AbstractProcessingHandler  
  5. {  
  6.     private $initialized = false;  
  7.     private $pdo;  
  8.     private $statement;  
  9.   
  10.     public function __construct(PDO $pdo, $level = Logger::DEBUG, $bubble = true)  
  11.     {  
  12.         $this->pdo = $pdo;  
  13.         parent::__construct($level, $bubble);  
  14.     }  
  15.   
  16.     protected function write(array $record)  
  17.     {  
  18.         if (!$this->initialized) {  
  19.             $this->initialize();  
  20.         }  
  21.   
  22.         $this->statement->execute(array(  
  23.             'channel' => $record['channel'],  
  24.             'level' => $record['level'],  
  25.             'message' => $record['formatted'],  
  26.             'time' => $record['datetime']->format('U'),  
  27.         ));  
  28.     }  
  29.   
  30.     private function initialize()  
  31.     {  
  32.         $this->pdo->exec(  
  33.             'CREATE TABLE IF NOT EXISTS monolog '  
  34.             .'(channel VARCHAR(255), level INTEGER, message LONGTEXT, time INTEGER UNSIGNED)'  
  35.         );  
  36.         $this->statement = $this->pdo->prepare(  
  37.             'INSERT INTO monolog (channel, level, message, time) VALUES (:channel, :level, :message, :time)'  
  38.         );  
  39.   
  40.         $this->initialized = true;  
  41.     }  
Statement
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
PHP Performance Tuning for High Traffic WebsitesPHP Performance Tuning for High Traffic WebsitesMay 14, 2025 am 12:13 AM

ThesecrettokeepingaPHP-poweredwebsiterunningsmoothlyunderheavyloadinvolvesseveralkeystrategies:1)ImplementopcodecachingwithOPcachetoreducescriptexecutiontime,2)UsedatabasequerycachingwithRedistolessendatabaseload,3)LeverageCDNslikeCloudflareforservin

Dependency Injection in PHP: Code Examples for BeginnersDependency Injection in PHP: Code Examples for BeginnersMay 14, 2025 am 12:08 AM

You should care about DependencyInjection(DI) because it makes your code clearer and easier to maintain. 1) DI makes it more modular by decoupling classes, 2) improves the convenience of testing and code flexibility, 3) Use DI containers to manage complex dependencies, but pay attention to performance impact and circular dependencies, 4) The best practice is to rely on abstract interfaces to achieve loose coupling.

PHP Performance: is it possible to optimize the application?PHP Performance: is it possible to optimize the application?May 14, 2025 am 12:04 AM

Yes,optimizingaPHPapplicationispossibleandessential.1)ImplementcachingusingAPCutoreducedatabaseload.2)Optimizedatabaseswithindexing,efficientqueries,andconnectionpooling.3)Enhancecodewithbuilt-infunctions,avoidingglobalvariables,andusingopcodecaching

PHP Performance Optimization: The Ultimate GuidePHP Performance Optimization: The Ultimate GuideMay 14, 2025 am 12:02 AM

ThekeystrategiestosignificantlyboostPHPapplicationperformanceare:1)UseopcodecachinglikeOPcachetoreduceexecutiontime,2)Optimizedatabaseinteractionswithpreparedstatementsandproperindexing,3)ConfigurewebserverslikeNginxwithPHP-FPMforbetterperformance,4)

PHP Dependency Injection Container: A Quick StartPHP Dependency Injection Container: A Quick StartMay 13, 2025 am 12:11 AM

APHPDependencyInjectionContainerisatoolthatmanagesclassdependencies,enhancingcodemodularity,testability,andmaintainability.Itactsasacentralhubforcreatingandinjectingdependencies,thusreducingtightcouplingandeasingunittesting.

Dependency Injection vs. Service Locator in PHPDependency Injection vs. Service Locator in PHPMay 13, 2025 am 12:10 AM

Select DependencyInjection (DI) for large applications, ServiceLocator is suitable for small projects or prototypes. 1) DI improves the testability and modularity of the code through constructor injection. 2) ServiceLocator obtains services through center registration, which is convenient but may lead to an increase in code coupling.

PHP performance optimization strategies.PHP performance optimization strategies.May 13, 2025 am 12:06 AM

PHPapplicationscanbeoptimizedforspeedandefficiencyby:1)enablingopcacheinphp.ini,2)usingpreparedstatementswithPDOfordatabasequeries,3)replacingloopswitharray_filterandarray_mapfordataprocessing,4)configuringNginxasareverseproxy,5)implementingcachingwi

PHP Email Validation: Ensuring Emails Are Sent CorrectlyPHP Email Validation: Ensuring Emails Are Sent CorrectlyMay 13, 2025 am 12:06 AM

PHPemailvalidationinvolvesthreesteps:1)Formatvalidationusingregularexpressionstochecktheemailformat;2)DNSvalidationtoensurethedomainhasavalidMXrecord;3)SMTPvalidation,themostthoroughmethod,whichchecksifthemailboxexistsbyconnectingtotheSMTPserver.Impl

See all articles

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

SublimeText3 Linux new version

SublimeText3 Linux new version

SublimeText3 Linux latest version

SecLists

SecLists

SecLists is the ultimate security tester's companion. It is a collection of various types of lists that are frequently used during security assessments, all in one place. SecLists helps make security testing more efficient and productive by conveniently providing all the lists a security tester might need. List types include usernames, passwords, URLs, fuzzing payloads, sensitive data patterns, web shells, and more. The tester can simply pull this repository onto a new test machine and he will have access to every type of list he needs.

ZendStudio 13.5.1 Mac

ZendStudio 13.5.1 Mac

Powerful PHP integrated development environment

DVWA

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

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor