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本文实例讲述了tp5框架使用composer实现日志记录功能。分享给大家供大家参考，具体如下：
tp5实现日志记录
1.安装 psr/log
composer require psr/log
它的作用就是提供一套接口，实现正常的日志功能！
我们可以来细细的分析一下，loggerinterface.php
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<?php
namespace psr\log;
/**
* describes a logger instance.
*
* the message must be a string or object implementing __tostring().
*
* the message may contain placeholders in the form: {foo} where foo
* will be replaced by the context data in key "foo".
*
* the context array can contain arbitrary data. the only assumption that
* can be made by implementors is that if an exception instance is given
* to produce a stack trace, it must be in a key named "exception".
*
* see https://github.com/php-fig/fig-standards/blob/master/accepted/psr-3-logger-interface.md
* for the full interface specification.
*/
interface loggerinterface
{
/**
* system is unusable.
*
* @param string $message
* @param array $context
*
* @return void
*/
public function emergency($message, array $context = array());
/**
* action must be taken immediately.
*
* example: entire website down, database unavailable, etc. this should
* trigger the sms alerts and wake you up.
*
* @param string $message
* @param array $context
*
* @return void
*/
public function alert($message, array $context = array());
/**
* critical conditions.
*
* example: application component unavailable, unexpected exception.
*
* @param string $message
* @param array $context
*
* @return void
*/
public function critical($message, array $context = array());
/**
* runtime errors that do not require immediate action but should typically
* be logged and monitored.
*
* @param string $message
* @param array $context
*
* @return void
*/
public function error($message, array $context = array());
/**
* exceptional occurrences that are not errors.
*
* example: use of deprecated apis, poor use of an api, undesirable things
* that are not necessarily wrong.
*
* @param string $message
* @param array $context
*
* @return void
*/
public function warning($message, array $context = array());
/**
* normal but significant events.
*
* @param string $message
* @param array $context
*
* @return void
*/
public function notice($message, array $context = array());
/**
* interesting events.
*
* example: user logs in, sql logs.
*
* @param string $message
* @param array $context
*
* @return void
*/
public function info($message, array $context = array());
/**
* detailed debug information.
*
* @param string $message
* @param array $context
*
* @return void
*/
public function debug($message, array $context = array());
/**
* logs with an arbitrary level.
*
* @param mixed $level
* @param string $message
* @param array $context
*
* @return void
*/
public function log($level, $message, array $context = array());
}
这是一套日志正常的接口，有层级，有消息，有具体的内容。
loglevel.php
<?php
namespace psr\log;
/**
* describes log levels.
*/
class loglevel
{
const emergency = 'emergency';
const alert = 'alert';
const critical = 'critical';
const error = 'error';
const warning = 'warning';
const notice = 'notice';
const info = 'info';
const debug = 'debug';
}
定义一些错误常量。
abstractlogger.php实现接口
<?php
namespace psr\log;
/**
* this is a simple logger implementation that other loggers can inherit from.
*
* it simply delegates all log-level-specific methods to the `log` method to
* reduce boilerplate code that a simple logger that does the same thing with
* messages regardless of the error level has to implement.
*/
abstract class abstractlogger implements loggerinterface
{
/**
* system is unusable.
*
* @param string $message
* @param array $context
*
* @return void
*/
public function emergency($message, array $context = array())
{
$this->log(loglevel::emergency, $message, $context);
}
/**
* action must be taken immediately.
*
* example: entire website down, database unavailable, etc. this should
* trigger the sms alerts and wake you up.
*
* @param string $message
* @param array $context
*
* @return void
*/
public function alert($message, array $context = array())
{
$this->log(loglevel::alert, $message, $context);
}
/**
* critical conditions.
*
* example: application component unavailable, unexpected exception.
*
* @param string $message
* @param array $context
*
* @return void
*/
public function critical($message, array $context = array())
{
$this->log(loglevel::critical, $message, $context);
}
/**
* runtime errors that do not require immediate action but should typically
* be logged and monitored.
*
* @param string $message
* @param array $context
*
* @return void
*/
public function error($message, array $context = array())
{
$this->log(loglevel::error, $message, $context);
}
/**
* exceptional occurrences that are not errors.
*
* example: use of deprecated apis, poor use of an api, undesirable things
* that are not necessarily wrong.
*
* @param string $message
* @param array $context
*
* @return void
*/
public function warning($message, array $context = array())
{
$this->log(loglevel::warning, $message, $context);
}
/**
* normal but significant events.
*
* @param string $message
* @param array $context
*
* @return void
*/
public function notice($message, array $context = array())
{
$this->log(loglevel::notice, $message, $context);
}
/**
* interesting events.
*
* example: user logs in, sql logs.
*
* @param string $message
* @param array $context
*
* @return void
*/
public function info($message, array $context = array())
{
$this->log(loglevel::info, $message, $context);
}
/**
* detailed debug information.
*
* @param string $message
* @param array $context
*
* @return void
*/
public function debug($message, array $context = array())
{
$this->log(loglevel::debug, $message, $context);
}
}
logger.php继承abstractlogger.php
<?php
namespace psr\log;
use app\index\model\logmodel;
/**
* this logger can be used to avoid conditional log calls.
*
* logging should always be optional, and if no logger is provided to your
* library creating a nulllogger instance to have something to throw logs at
* is a good way to avoid littering your code with `if ($this->logger) { }`
* blocks.
*/
class logger extends abstractlogger
{
/**
* logs with an arbitrary level.
*
* @param mixed $level
* @param string $message
* @param array $context
*
* @return void
*/
public function log($level, $message, array $context = array())
{
// noop
$logmodel = new logmodel();
$logmodel->add($level,$message,json_encode($context));
echo $logmodel->id;
}
}
这里面的log方法是我自己写的！！！
我们需要把日志存储到数据库中！！！
这里我设计了一个log表，包含id、level、message、 context、ip、url、create_on等。
我创建了一个logmodel.php
<?php
/**
* @author: jim
* @date: 2017/11/16
*/
namespace app\index\model;
use think\model;
/**
* class logmodel
* @package app\index\model
*
* 继承model之后，就可以使用继承它的属性和方法
*
*/
class logmodel extends model
{
protected $pk = 'id'; // 配置主键
protected $table = 'log'; // 默认的表名是log_model
public function add($level = "error",$message = "出错啦",$context = "") {
$this->data([
'level' => $level,
'message' => $message,
'context' => $context,
'ip' => getip(),
'url' => geturl(),
'create_on' => date('y-m-d h:i:s',time())
]);
$this->save();
return $this->id;
}
}
一切都准备好了，可以在控制器中使用了！
<?php
namespace app\index\controller;
use think\controller;
use psr\log\logger;
class index extends controller
{
public function index()
{
$logger = new logger();
$context = array();
$context['err'] = "缺少参数id";
$logger->info("有新消息");
}
public function _empty() {
return "empty";
}
}
小结：
composer很好很强大！
这里是接口interface的典型案例，定义接口，定义抽象类，定义具体类。
有了命名空间，可以很好的引用不同文件夹下的库！
互相使用，能够防止高内聚！即便是耦合也相对比较独立！
有了这个日志小工具，平时接口的一些报错信息就能很好的捕捉了！
只要
use psr\log\logger;
然后
$logger = new logger();
$logger->info("info信息");
使用非常方便！！！
附上获取ip、获取url的方法。
//获取用户真实ip
function getip() {
if (getenv("http_client_ip") && strcasecmp(getenv("http_client_ip"), "unknown"))
$ip = getenv("http_client_ip");
else
if (getenv("http_x_forwarded_for") && strcasecmp(getenv("http_x_forwarded_for"), "unknown"))
$ip = getenv("http_x_forwarded_for");
else
if (getenv("remote_addr") && strcasecmp(getenv("remote_addr"), "unknown"))
$ip = getenv("remote_addr");
else
if (isset ($_server['remote_addr']) && $_server['remote_addr'] && strcasecmp($_server['remote_addr'], "unknown"))
$ip = $_server['remote_addr'];
else
$ip = "unknown";
return ($ip);
}
// 获取url
function geturl() {
return 'http://'.$_server['server_name'].':'.$_server["server_port"].$_server["request_uri"];
}
更多关于thinkphp相关内容感兴趣的读者可查看本站专题：《thinkphp入门教程》、《thinkphp模板操作技巧总结》、《thinkphp常用方法总结》、《codeigniter入门教程》、《ci(codeigniter)框架进阶教程》、《zend framework框架入门教程》及《php模板技术总结》。
希望本文所述对大家基于thinkphp框架的php程序设计有所帮助。
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