How to view PHP error logs in CentOS system

CentOS system is a popular Linux operating system, which is the preferred operating system for many web servers. Most web servers require PHP, so when using CentOS, you often need to check the PHP error log. The PHP error log is a file that records PHP error information, including warnings, fatal errors, and notifications. In this article, I will introduce how to view PHP error logs in CentOS system.

1. Open the terminal

Use the terminal to operate the system through the command line. The way to open the terminal is to find "Terminal" in the CentOS menu bar or press the "Ctrl Alt T" key.

2. Enter the path where the PHP error log file is located

The default path of the PHP error log in CentOS Linux is located under "/var/log/httpd/". Therefore, to view the PHP error log, you need to enter this directory. Enter the following command:

cd /var/log/httpd/

3. View the PHP error log file

After entering the directory, use the following command to view the PHP error log file:

ls -lh error_log

This will display details such as size, date and time of the PHP error log.

4. Use the tail command to view the contents of the PHP error log

To view the contents of the PHP error log, you can use the "tail" command. The tail command is a command that outputs the contents of the tail of a file. It is often used to view log files. Use the following command to view the contents of the PHP error log:

tail -f error_log

This command will display the contents of the PHP error log file in real time in the terminal. You can press "Ctrl C" to stop the output of the file contents.

Also, to view the PHP error log for a specific date and time, you can use the following command:

grep "2019-06-01" error_log

This will list all PHP error log generated on June 1, 2019.

5. Use the vim editor to view the content of the PHP error log

If you want to edit the PHP error log file, you can use the vim editor. Open the PHP error log file using the following command:

vim error_log

This command will open the PHP error log file in the terminal. For how to use vim editor to edit files, please refer to the relevant guide of vim editor.

Summary

Viewing PHP error logs in CentOS systems is a necessary task. We can use the terminal to enter the path to the PHP error log file and use commands to view and edit the file. This article introduces the basic method of viewing PHP error logs using the terminal command line and vim editor.

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