How to remove warnings when installing laravel (a brief analysis of the method)

Laravel is a popular PHP framework that helps developers develop web applications quickly. This framework is popular due to its excellent performance, rich features, and active community. However, some warnings may appear when installing Laravel, which may have adverse effects on the stability and security of the application. This article will introduce how to remove warnings that may appear when installing Laravel.

1. Turn off display_errors

In PHP, display_errors is an option that indicates whether to display errors on the page. By default, it may generate a lot of warning messages in Laravel applications. If display_errors is not set, all errors and warnings will be displayed in the Laravel application.

To prevent this from happening, we can solve it by turning off display_errors in the php.ini file. The steps are as follows:

1. Find the php.ini file

Open the terminal and enter the following command to open the php.ini file:

sudo nano /etc/ php/7.4/cli/php.ini

In order to turn off display_errors, we need to locate the following two lines:

display_errors = On
display_startup_errors = On

2. Modify display_errors

Change the above two lines to:

display_errors = Off
display_startup_errors = Off

After the modification is completed, save and exit the php.ini file , and restart the Apache server.

3. Show warning

By default, Laravel does not display warning messages. In order for Laravel to display warning messages, we need to modify the configuration file. Open the .config/app.php file and find the following line:

'env' => env('APP_ENV', 'production'),

Change it to:

'env' => env('APP_ENV', 'development'),

This way Laravel will display error and warning information on the page. If you want to keep this change, you need to delete the bootstrap/cache/config.php file and regenerate the cache using the following command:

php artisan config:cache

2. Update PHP version

If you are using an older version of PHP, then you may see some warnings that new versions of PHP are not supported. Therefore, to avoid these issues, we recommend you to use the latest version of PHP.

Generally speaking, in Ubuntu system, enter the following command in the terminal to update PHP:

sudo apt update
sudo apt upgrade

In CentOS system , enter the following command:

sudo yum update
sudo yum upgrade

3. Install PHP extensions

The Laravel framework requires many PHP extensions. If these extensions are missing, Many warning messages will be generated. We can install and enable these extensions through the following steps:

1. Find the name of the extension

Before installing the extension, you need to know the name of the extension. You can find out the name of the extension by running the following command:

sudo apt-cache search php7.4-

2. Install the extension

Install the extension's The command is as follows:

sudo apt-get install php7.4-[extension name]

3. Enable extension

In order to enable the extension, we need to Find the following line in the .ini file:

;extension=[extension name].so

Change it to:

extension=[extension name].so

Save the file and restart the Apache server.

4. Conclusion

By taking the above steps, you can remove warnings that may appear when installing Laravel. Turning off display_errors, updating PHP version and installing PHP extensions are important steps to ensure the stability and security of Laravel applications. If you want to learn more about Laravel and PHP, check out the official documentation and community forums.

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