Tell Composer to use Different PHP Version
Stefan Izdrail
Founder & Senior Architect · 2026-06-29
Title: Overcome PHP Version Conflicts with Composer on Hosting Platforms: A Guide for Laravel Developers
Introduction:
Composer is an essential tool in the world of PHP development, allowing developers to easily manage dependencies and create a consistent application environment. Unfortunately, not all hosting platforms provide seamless compatibility with Composer, which can lead to frustrations when trying to install packages or run applications like Laravel. In this comprehensive guide, we will discuss how to configure Composer to use a different PHP version on 1and1 hosting and other hosting providers.
Step by Step Guide:
1. Create a custom composer.json file for your project:
A new composer.json file allows you to specify the desired PHP version explicitly, overriding the default settings of the underlying hosting platform. Create a directory named .composer in your Laravel project's root folder and add a composer.json file inside it. This will prevent conflicts with Composer's global configuration and ensure that only your local configuration is used.
Here's an example of a custom composer.json file:
{
"config": {
"platform": {
"php": "5.5"
}
},
... (other configuration options)...
}
2. Run Composer with specific PHP version:
To use the custom composer.json file, modify your command to call the custom composer.phar executable instead of the global one. You can create a .env file in your project root directory and add the following line:
COMPOSER_ALLOW_SUPERUSER=1
This line will temporarily allow Composer to run as the superuser, bypassing any conflicts with other PHP versions installed on your system or hosting platform.
3. Change the shebang in composer.phar file:
Open the composer.phar file (usually located at /usr/bin/composer.phar) in a text editor and modify its first line to point to the desired PHP executable:
#!/path/to/php5.5
This ensures that Composer will use the specified version of PHP every time it runs, regardless of what other versions are available on your system or hosting platform.
4. Try installing dependencies using custom composer.phar:
Now that you have a custom composer.json file and modified the shebang in the composer.phar file, let's try running Composer with your project:
./composer.phar install
5. Configure PHP settings to prevent auto-detection conflicts:
To avoid any other conflicts related to PHP version detection, you can adjust your php.ini or .htaccess files accordingly. Include the following line in your php.ini file:
zend_extension = no
This prevents PHP from loading extensions that might interfere with your application installation process. If using an Apache server, add these lines to your .htaccess file:
php_flag zend_extension off
php_value auto_prepend_file none
6. Test your Laravel project:
Finally, test your Laravel project by opening it in a web browser and ensuring all required packages are installed properly. If everything works well, you have successfully configured Composer to use the specified PHP version on 1and1 hosting.
Conclusion:
By following this comprehensive guide, you can overcome conflicts between Composer, PHP versions, and hosting platforms while working with Laravel projects. Remember that a custom composer.json file helps to ensure your application's smooth installation process without any unexpected PHP configuration issues. If you continue facing problems, it is always helpful to consult the Laravel community for additional insights or seek support from the Composer maintainers on their forum. With patience and perseverance, you will soon be able to effortlessly manage your Laravel projects, regardless of your hosting platform constraints.