SeasLog-1.5.6 发布,内存和IO优化版本,轻量高效的PHP日志扩展。
改进日志:
此次改进进行了内存稳定优化,和批量IO优化,本次版本将带来更低的内存和IO消耗,稍后将发布性能测试报告。
- Fixed issue #76 #80 #86 Fixed segment fault with PHP7. - Make memory usage more stable, and clear memory leaks with PHP5.* and PHP7.*.
为什么使用SeasLog
log日志,通常是系统或软件、应用的运行记录。通过log的分析,可以方便用户了解系统或软件、应用的运行情况;如果你的应用log足够丰富,也可以分析以往用户的操作行为、类型喜好、地域分布或其他更多信息;如果一个应用的log同时也分了多个级别,那么可以很轻易地分析得到该应用的健康状况,及时发现问题并快速定位、解决问题,补救损失。
php内置error_log、syslog函数功能强大且性能极好,但由于各种缺陷(error_log无错误级别、无固定格式,syslog不分模块、与系统日志混合),灵活度降低了很多,不能满足应用需求。
好消息是,有不少第三方的log类库弥补了上述缺陷,如log4php、plog、Analog等(当然也有很多应用在项目中自己开发的log类)。其中以 log4php 最为著名,设计精良、格式完美、文档完善、功能强大。推荐。
不过log4php在性能方面表现非常差,下图是SeasLog与log4php的ab并发性能测试( 测试环境:Ubuntu12.04单机,CPU I3,内存 16G,硬盘 SATA 7200):
那么有没有一种log类库满足以下需求呢:
-
分模块、分级别
-
配置简单(最好是勿须配置)
-
日志格式清晰易读
-
应用简单、性能很棒
SeasLog 正是应此需求而生。
目前提供了什么
-
在PHP项目中便捷、规范地记录log
-
可配置的默认log目录与模块
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指定log目录与获取当前配置
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初步的分析预警框架
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高效的日志缓冲、便捷的缓冲debug
-
遵循 PSR-3 日志接口规范
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自动记录错误信息
-
自动记录异常信息
目标是怎样的
-
便捷、规范的log记录
-
高效的海量log分析
-
可配置、多途径的log预警
安装
编译安装 SeasLog
$ /path/to/phpize$ ./configure --with-php-config=/path/to/php-config$ make && make install
PECL安装SeasLog
$ pecl install seaslog
seaslog.ini 的配置
; configuration for php SeasLog moduleextension = seaslog.soseaslog.default_basepath = /log/seaslog-test ;默认log根目录seaslog.default_logger = default ;默认logger目录seaslog.disting_type = 1 ;是否以type分文件 1是 0否(默认)seaslog.disting_by_hour&nnbsp;= 1 ;是否每小时划分一个文件 1是 0否(默认)seaslog.use_buffer = 1 ;是否启用buffer 1是 0否(默认)seaslog.buffer_size = 100 ;buffer中缓冲数量 默认0(不使用buffer_size)seaslog.level = 0 ;记录日志级别 默认0(所有日志)seaslog.trace_error = 1 ;自动记录错误 默认1(开启)seaslog.trace_exception = 0 ;自动记录异常信息 默认0(关闭)seaslog.default_datetime_format = "%Y:%m:%d %H:%M:%S" ;日期格式配置 默认"%Y:%m:%d %H:%M:%S"
seaslog.disting_type = 1 开启以type分文件,即log文件区分info\warn\erro
seaslog.disting_by_hour = 1 开启每小时划分一个文件
seaslog.use_buffer = 1 开启buffer。默认关闭。当开启此项时,日志预存于内存,当请求结束时(或异常退出时)一次写入文件。
常量与函数
常量列表
* SEASLOG_DEBUG "debug"* SEASLOG_INFO "info"* SEASLOG_NOTICE "notice"* SEASLOG_WARNING "warning"* SEASLOG_ERROR "error"* SEASLOG_CRITICAL "critical"* SEASLOG_ALERT "alert"* SEASLOG_EMERGENCY "emergency"var_dump(SEASLOG_DEBUG,SEASLOG_INFO,SEASLOG_NOTICE);/*string('debug') debug级别string('info') info级别string('notice') notice级别*/
函数列表
SeasLog 提供了这样一组函数,可以方便地获取与设置根目录、模块目录、快速写入与统计log。 相信从下述伪代码的注释中,您可以快速获取函数信息,具体使用将紧接其后:
<?php/** * @author neeke@php.net * Date: 14-1-27 下午4:47 */class SeasLog{ public function __construct() { #SeasLog init } public function __destruct() { #SeasLog distroy } /** * 设置basePath * * @param $basePath * * @return bool */ static public function setBasePath($basePath) { return TRUE; } /** * 获取basePath * * @return string */ static public function getBasePath() { return 'the base_path'; } /** * 设置模块目录 * @param $module * * @return bool */ static public function setLogger($module) { return TRUE; } /** * 获取最后一次设置的模块目录 * @return string */ static public function getLastLogger() { return 'the lastLogger'; } /** * 设置DatetimeFormat配置 * @param $format * * @return bool */ static public function setDatetimeFormat($format) { return TRUE; } /** * 返回当前DatetimeFormat配置格式 * @return string */ static public function getDatetimeFormat() { return 'the datetimeFormat'; } /** * 统计所有类型(或单个类型)行数 * @param string $level * @param string $log_path * @param null $key_word * * @return array | long */ static public function analyzerCount($level = 'all', $log_path = '*', $key_word = NULL) { return array(); } /** * 以数组形式,快速取出某类型log的各行详情 * * @param $level * @param string $log_path * @param null $key_word * @param int $start * @param int $limit * @param $order * * @return array */ static public function analyzerDetail($level = SEASLOG_INFO, $log_path = '*', $key_word = NULL, $start = 1, $limit = 20, $order = SEASLOG_DETIAL_ORDER_ASC) { return array(); } /** * 获得当前日志buffer中的内容 * * @return array */ static public function getBuffer() { return array(); } /** * 将buffer中的日志立刻刷到硬盘 * * @return bool */ static public function flushBuffer() { return TRUE; } /** * 记录debug日志 * * @param $message * @param array $content * @param string $module */ static public function debug($message, array $content = array(), $module = '') { #$level = SEASLOG_DEBUG } /** * 记录info日志 * * @param $message * @param array $content * @param string $module */ static public function info($message, array $content = array(), $module = '') { #$level = SEASLOG_INFO } /** * 记录notice日志 * * @param $message * @param array $content * @param string $module */ static public function notice($message, array $content = array(), $module = '') { #$level = SEASLOG_NOTICE } /** * 记录warning日志 * * @param $message * @param array $content * @param string $module */ static public function warning($message, array $content = array(), $module = '') { #$level = SEASLOG_WARNING } /** * 记录error日志 * * @param $message * @param array $content * @param string $module */ static public function error($message, array $content = array(), $module = '') { #$level = SEASLOG_ERROR } /** * 记录critical日志 * * @param $message * @param array $content * @param string $module */ static public function critical($message, array $content = array(), $module = '') { #$level = SEASLOG_CRITICAL } /** * 记录alert日志 * * @param $message * @param array $content * @param string $module */ static public function alert($message, array $content = array(), $module = '') { #$level = SEASLOG_ALERT } /** * 记录emergency日志 * * @param $message * @param array $content * @param string $module */ static public function emergency($message, array $content = array(), $module = '') { #$level = SEASLOG_EMERGENCY } /** * 通用日志方法 * @param $level * @param $message * @param array $content * @param string $module */ static public function log($level, $message, array $content = array(), $module = '') { }}
SeasLog Logger的使用(详细文档)
使用SeasLog进行健康预警
预警的配置
[base]wait_analyz_log_path = /log/base_test[fork];是否开启多线程 1开启 0关闭fork_open = 1;线程个数fork_count = 3[warning]email[smtp_host] = smtp.163.comemail[smtp_port] = 25email[subject_pre] = 预警邮件 -email[smtp_user] = seaslogdemo@163.comemail[smtp_pwd] = seaslog#demoemail[mail_from] = seaslogdemo@163.comemail[mail_to] = gaochitao@weiboyi.comemail[mail_cc] = ciogao@gmail.comemail[mail_bcc] =[analyz]; enum; SEASLOG_DEBUG "debug"; SEASLOG_INFO "info"; SEASLOG_NOTICE "notice"; SEASLOG_WARNING "warning"; SEASLOG_ERROR "error"; SEASLOG_CRITICAL "critical"; SEASLOG_ALERT "alert"; SEASLOG_EMERGENCY "emergency"test1[module] = test/bbtest1[level] = SEASLOG_ERRORtest1[bar] = 1test1[mail_to] = gaochitao@weiboyi.comtest2[module] = 222test2[level] = SEASLOG_WARNINGtest3[module] = 333test3[level] = SEASLOG_CRITICALtest4[module] = 444test4[level] = SEASLOG_EMERGENCYtest5[module] = 555test5[level] = SEASLOG_DEBUG
crontab配置
;每天凌晨3点执行0 3 * * * /path/to/php /path/to/SeasLog/Analyzer/SeasLogAnalyzer.php
Demo:
<?php/** * @author ciogao@gmail.com * Date: 14-1-27 下午4:41 */ SeasLog::log(SEASLOG_ERROR,'this is a error test by ::log');SeasLog::debug('this is a {userName} debug',array('{userName}' => 'neeke'));SeasLog::info('this is a info log');SeasLog::notice('this is a notice log');SeasLog::warning('your {website} was down,please {action} it ASAP!',array('{website}' => 'github.com','{action}' => 'rboot'));SeasLog::error('a error log');SeasLog::critical('some thing was critical');SeasLog::alert('yes this is a {messageName}',array('{messageName}' => 'alertMSG'));SeasLog::emergency('Just now, the house next door was completely burnt out! {note}',array('{note}' => 'it`s a joke'));echo "\n";

PHP is mainly procedural programming, but also supports object-oriented programming (OOP); Python supports a variety of paradigms, including OOP, functional and procedural programming. PHP is suitable for web development, and Python is suitable for a variety of applications such as data analysis and machine learning.

PHP originated in 1994 and was developed by RasmusLerdorf. It was originally used to track website visitors and gradually evolved into a server-side scripting language and was widely used in web development. Python was developed by Guidovan Rossum in the late 1980s and was first released in 1991. It emphasizes code readability and simplicity, and is suitable for scientific computing, data analysis and other fields.

PHP is suitable for web development and rapid prototyping, and Python is suitable for data science and machine learning. 1.PHP is used for dynamic web development, with simple syntax and suitable for rapid development. 2. Python has concise syntax, is suitable for multiple fields, and has a strong library ecosystem.

PHP remains important in the modernization process because it supports a large number of websites and applications and adapts to development needs through frameworks. 1.PHP7 improves performance and introduces new features. 2. Modern frameworks such as Laravel, Symfony and CodeIgniter simplify development and improve code quality. 3. Performance optimization and best practices further improve application efficiency.

PHPhassignificantlyimpactedwebdevelopmentandextendsbeyondit.1)ItpowersmajorplatformslikeWordPressandexcelsindatabaseinteractions.2)PHP'sadaptabilityallowsittoscaleforlargeapplicationsusingframeworkslikeLaravel.3)Beyondweb,PHPisusedincommand-linescrip

PHP type prompts to improve code quality and readability. 1) Scalar type tips: Since PHP7.0, basic data types are allowed to be specified in function parameters, such as int, float, etc. 2) Return type prompt: Ensure the consistency of the function return value type. 3) Union type prompt: Since PHP8.0, multiple types are allowed to be specified in function parameters or return values. 4) Nullable type prompt: Allows to include null values and handle functions that may return null values.

In PHP, use the clone keyword to create a copy of the object and customize the cloning behavior through the \_\_clone magic method. 1. Use the clone keyword to make a shallow copy, cloning the object's properties but not the object's properties. 2. The \_\_clone method can deeply copy nested objects to avoid shallow copying problems. 3. Pay attention to avoid circular references and performance problems in cloning, and optimize cloning operations to improve efficiency.

PHP is suitable for web development and content management systems, and Python is suitable for data science, machine learning and automation scripts. 1.PHP performs well in building fast and scalable websites and applications and is commonly used in CMS such as WordPress. 2. Python has performed outstandingly in the fields of data science and machine learning, with rich libraries such as NumPy and TensorFlow.


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