Overview of ThinkPHP debugging mode and logging, thinkphp logging_PHP tutorial

Overview of ThinkPHP debugging mode and logging, thinkphp logging

This article describes how to use ThinkPHP debugging mode and logging. This function plays a very important role in the development of ThinkPHP projects, and it is necessary to understand and master it. The specific method is as follows:

1. It can be set in config.php, and it is closed by default.

How to enable it:

'APP_DEBUG'  => true

Open the ThinkPHPCommondebug.php file to view the default debug settings as follows:

return array(
  'LOG_RECORD'=>true, // 进行日志记录
  'LOG_RECORD_LEVEL'    =>  array('EMERG','ALERT','CRIT','ERR','WARN','NOTIC','INFO','DEBUG','SQL'), // 允许记录的日志级别
  'DB_FIELDS_CACHE'=> false, //数据库字段缓存
  'SHOW_RUN_TIME'=>true,     // 运行时间显示
  'SHOW_ADV_TIME'=>true,     // 显示详细的运行时间
  'SHOW_DB_TIMES'=>true,     // 显示数据库查询和写入次数
  'SHOW_CACHE_TIMES'=>true,    // 显示缓存操作次数
  'SHOW_USE_MEM'=>true,      // 显示内存开销
  'SHOW_PAGE_TRACE'=>true,    // 显示页面Trace信息 由Trace文件定义和Action操作赋值
  'APP_FILE_CASE' =>  true, // 是否检查文件的大小写 对Windows平台有效
);

Note: DB_FIELDS_CACHE database field cache is turned off by default. If it is turned on, a file cache will be generated in the RuntimeData folder. After modifying the table, if a new field is added, this cache cannot record your operations and we need to manually Modifications to the table will be successful only after deleting it once.

After setting 'APP_DEBUG' => true, the DEBUG prompt as shown below will appear on the access page:

If you only want to display part of the prompt information, such as running time, memory overhead, etc.,

You can make corresponding settings in config.php, such as:

//'APP_DEBUG'  => true, // 调试模式开关
'SHOW_RUN_TIME' => true, //运行时间显示
'SHOW_ADV_TIME' => true, //显示详细的运行时间
'SHOW_DB_TIMES' => true, //显示数据库的操作次数
'SHOW_CACHE_TIMES'=>true, //显示缓存操作次数
'SHOW_USE_MEM' => true, //显示内存开销

The prompt information is as shown below:

2. Customization of page Trace information: ThinkPHPTplPageTrace.tpl.php

Customized method one: add a trace.php file in the same directory as config.php, the code is as follows:

<&#63;php
 return array{
  '当前的server信息'=>$_SERVER['REMOTE_ADDR'],
 };
&#63;>

Customized method two: add:

$this->trace('调试测试','5211314');

3. Output debugging method:

 halt('aaaaaaa');//输出aaaaaa并且中断程序执行

4. Model debugging: display SQL statements

 $User=new Model('User');
 $User->find(1);
 echo $User->getLastSql();//输出最后执行的一条SQL语句

5. Logging ThinkPHPLibThinkCoreLog.class.php

Set in config.php

 'LOG_RECORD'=>true,//开启了日志记录
 'LOG_RECORD_LEVEL'=>array('EMERG','ALERT','ERROR'),

I hope the method described in this article will be helpful to everyone.

Logging\ThinkPHP\Lib\Think\Core\Log.class.php

1. It can be set in config.php, and it is turned off by default. 'APP_DEBUG' => true

Open the \ThinkPHP\Common\debug.php file to view the default settings of debug as follows:

return array(

'LOG_RECORD'= >true, // Perform logging

'LOG_RECORD_LEVEL' => array('EMERG','ALERT','CRIT','ERR','WARN','NOTIC','INFO' ,'DEBUG','SQL'), // Allowed logging level
'DB_FIELDS_CACHE'=> false, //Database field cache

'SHOW_RUN_TIME'=>true, // Run Time display
'SHOW_ADV_TIME'=>true, // Display detailed running time
'SHOW_DB_TIMES'=>true, // Display number of database queries and writes
'SHOW_CACHE_TIMES'=>true , // Display the number of cache operations
'SHOW_USE_MEM'=>true, // Display memory overhead
'SHOW_PAGE_TRACE'=>true, // Display page Trace information is defined by the Trace file and assigned by the Action operation
'APP_FILE_CASE' => true, // Whether to check the case of the file is valid for Windows platform
);

Note: DB_FIELDS_CACHE database field cache is turned off by default. If it is turned on, it will be executed at Runtime A file cache is generated in the \Data folder, and after modifying the table, if a new field is added, this cache cannot record your operations. We need to manually delete it once before the table modification can be successful.

After setting 'APP_DEBUG' => true, the DEBUG prompt as shown below will appear on the access page:

If you only want to display part of the prompt information, such as running time, memory overhead, etc.,

You can make corresponding settings in config.php, such as:

//'APP_DEBUG' => true, // Debug mode switch
'SHOW_RUN_TIME' => true , //Display running time
'SHOW_ADV_TIME' => true, //Display detailed running time
'SHOW_DB_TIMES' => true, //Display number...Remaining full text>>
Zhang Haibo [authoritative expert]

Let me tell you the answer!
No problem, you create an IndexAction.class.php file in Admin/Lib/Action,
display();
}
}
Then create an Index folder in Admin/Tpl, and just create an index.html file in this folder