WordPress installation failed? Quick troubleshooting steps

WordPress is currently the most widely used website building platform in the world, but you may encounter some problems during installation, causing the installation to fail. This article will introduce how to quickly troubleshoot WordPress installation failures and give specific code examples.

1. Check the minimum system requirements of WordPress

Before installing WordPress, you first need to ensure that the server environment meets the minimum system requirements of WordPress. Specifically, WordPress requires that the PHP version is at least 5.6 and above, and the MySQL version is at least 5.0 and above. In addition, it is recommended to use the latest versions of PHP and MySQL and Apache or Nginx as the server software.

2. Check file permission settings

When installing WordPress, file permission settings are an issue that is easily overlooked. Make sure the permissions on the WordPress root directory and subdirectories and files are set correctly, generally they should be set to 755 or 750. Also, make sure the file owner and group are correct.

3. Check the database connection configuration

WordPress needs to connect to the MySQL database to store data, so the database connection information needs to be configured correctly. Find the wp-config.php file in the root directory of WordPress and ensure that the database host, name, username and password information inside is correct.

define('DB_NAME', 'your_database_name');
define('DB_USER', 'your_database_username');
define('DB_PASSWORD', 'your_database_password');
define('DB_HOST', 'localhost');

4. Check for conflicts between plug-ins and themes

Sometimes the installation of WordPress fails because the installed plug-in or theme is incompatible or conflicts with the current environment. In order to rule out this possibility, you can try to temporarily disable the plug-in and theme, and then try to install it again.

5. Check the PHP error log

Viewing the PHP error log on the server can help quickly locate the cause of the installation failure. Depending on the PHP configuration, the error log is usually located in /var/log/php/error.log or the path configured in php.ini.

6. Use the debugging mode provided by WordPress

Turning on the debugging mode of WordPress in the wp-config.php file can output more error information to facilitate troubleshooting. Add the following two lines of code to the top of the wp-config.php file:

define('WP_DEBUG', true);
define('WP_DEBUG_LOG', true);

7. Use the WordPress installation troubleshooting tool

WordPress provides an installation troubleshooting tool that can help diagnose Problems during installation. The tool can be enabled by visiting wp-admin/install.php?debug=1.

8. Back up data and files

Before trying to repair WordPress installation problems, be sure to back up your database and files to prevent data loss or website paralysis.

In short, troubleshooting WordPress installation failures requires careful step-by-step analysis and inspection. The above are some common troubleshooting steps and code examples. I hope they can help WordPress users who encounter problems.

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