ThinkPHP6 logging and debugging skills: quickly locate problems
Introduction:
In the development process, troubleshooting and solving problems is an inevitable link. Logging and debugging are one of our important tools for locating and solving problems. ThinkPHP6 provides rich logging and debugging functions. This article will introduce how to use these functions to quickly locate problems and speed up the development process.
1. Logging function
config/app.php
of ThinkPHP6, we can find the configuration of the log Item'log'
. By default, the logging function is turned on, and the log files exist in the runtime/log
directory. If you need to modify the storage location of the log, you can modify the 'log_path'
configuration item. 2.1 info method
hinkacadeLog::info('This is an info log');
2.2 error method
hinkacadeLog::error('This is an error log');
2.3 warning method
hinkacadeLog::warning('This is a warning log');
2.4 debug Method
hinkacadeLog::debug('This is a debug log');
2.5 log method
hinkacadeLog::log('This is a custom log', 'custom');
runtime/log
directory log file. Based on the date and record level, we can quickly locate the specified log content for troubleshooting and analysis. 2. Debugging skills
1.1 dump method
dump($variable);
1.2 print_r method
print_r($array);
1.3 var_dump method
var_dump($variable);
1.4 trace Method
hinkacadeLog::trace('This is a trace log');
appexceptionHandler.php
file. This file contains the render
method, which is used to handle and return different types of exceptions. 3. Case Analysis
In order to better explain how to use logging and debugging skills to quickly locate problems, let’s analyze an actual case.
Suppose we encounter a problem during the development process: after the user submits the form, the page is always loading, but there is no error message. We can solve this problem by following the following steps:
config/app.php
file, configure 'log'
Set the value of the item to true
to ensure that logging is turned on. Add logging
In the controller method that handles form submission, we can add some logging statements to track the execution of the program. For example, we can record a log before the form is submitted to determine whether the form data was successfully received:
hinkacadeLog::info('Form data received: ' . json_encode($data));
runtime/log
directory Log files to see if there are relevant log records. Based on the log content, you can determine whether the form data is successfully received, whether there are data processing problems, etc. dump
statement in the data processing code to check whether the data processing logic is correct. Catching exceptions
If the above steps do not find the problem, we can try to catch the exception in global exception handling. In the appexceptionHandler.php
file, you can write code to capture exceptions and use the logging method to output exception information. For example:
public function render(Exception $e): JsonResponse { hinkacadeLog::error('Exception caught: ' . $e->getMessage()); return parent::render($e); }
Through the above steps, we can gradually locate the problem, analyze the execution details and exceptions of the program, and finally solve the form submission problem.
Conclusion:
This article introduces ThinkPHP6 logging and debugging techniques, including log configuration, recording and access, debugging output and exception handling. Mastering these skills can help developers quickly locate problems and speed up the development process. In actual development, we should make more use of these tools and techniques to play their role and improve development efficiency and code quality.
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