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How to Install Laravel 10 via Composer Without Changing Your Default PHP Version

Learn how to successfully install Laravel 10 via Composer when your default PHP version is set lower than 8.1. This guide provides a step-by-step solution for seamless installation.
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This video is based on the question https://stackoverflow.com/q/75596048/ asked by the user 'Florin' ( https://stackoverflow.com/u/1830139/ ) and on the answer https://stackoverflow.com/a/75596049/ provided by the user 'Florin' ( https://stackoverflow.com/u/1830139/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Installing Laravel 10 when PHP Version is Lower than 8.1

As developers, we often encounter issues when trying to install the latest frameworks, especially when our system configurations do not align with the requirements. One of the common problems faced by Laravel enthusiasts is installing Laravel 10 via Composer when the default PHP version on their machine is lower than 8.1. Many users prefer to keep their old PHP version (like 7.4) for compatibility reasons, but they also want to use the latest features offered by Laravel 10.

In this guide, we will walk you through the steps to install Laravel 10 directly using Composer without needing to change the PHP version configured on your machine.

The Problem

When you try to run the Laravel installation command using Composer:

[[See Video to Reveal this Text or Code Snippet]]

If your system defaults to PHP 7.4, Composer will install Laravel 8 instead of Laravel 10. This is problematic for developers who want to take advantage of the new features and improvements of Laravel 10 but have applications or systems that require an older version of PHP.

The Solution

To tackle this problem, you can explicitly specify which PHP version to use during the installation process. Here’s how you can do it:

Step-by-Step Installation Guide

Ensure PHP 8.1 is Installed:

Confirm that PHP 8.1 is installed on your system. You can check this by running:

[[See Video to Reveal this Text or Code Snippet]]

If PHP 8.1 is not installed, you can install it using your package manager.

Run Composer with PHP 8.1:

Instead of changing the default PHP version, use the following command to create your Laravel project:

[[See Video to Reveal this Text or Code Snippet]]

This command explicitly tells your system to use the PHP 8.1 binary when running Composer, ensuring that Laravel 10 is installed.

Important Notes

This method works well on Ubuntu 18.04, but similar commands can be used for other distributions as long as you have multiple PHP versions set up.

Ensure that the path to your PHP and Composer binaries is correct. You may need to adjust /usr/bin/php8.1 or /usr/local/bin/composer based on your installation.

Conclusion

By following the steps outlined above, you can successfully install Laravel 10 using Composer without needing to change your default PHP version from 7.4. This approach allows you to continue working with your existing projects while also exploring the latest features offered by newer versions of Laravel.

Happy coding! If you have any questions or run into issues during the installation process, feel free to ask for help!

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