Installing Composer Dependencies with Specific PHP Version in Cpanel

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Prerequisites

Before you proceed, ensure the following are in place:

  • Access to the project directory containing:
    • composer.json
    • composer.lock
    • (Optional) an existing vendor/ directory
  • PHP 8.2 is installed and available via EasyApache (e.g., ea-php82)
  • Composer is installed at /opt/cpanel/composer/bin/composer
  • Shell access (SSH) to the server
  • Sufficient permissions to run PHP and Composer in the target directory

Introduction

In PHP-based projects, especially Laravel or other Composer-driven frameworks, it’s essential to match the correct PHP version when installing dependencies. The composer.lock file often locks packages to a specific PHP version (platform.php) to prevent inconsistencies across environments.

This guide outlines the correct procedure to install dependencies using Composer with PHP 8.2, as dictated by the lock file. This prevents version mismatch errors and ensures that your local or server environment behaves predictably.

Step-by-Step Instructions

1️⃣ Navigate to the Project Directory

cd /home/pheonix/public_html/creview/

2️⃣ Verify Required PHP Version in composer.lock

cat composer.lock | grep -A 10 '"platform"'

Example Output:

"platform": {
    "php": "^8.2"
}

This confirms that the project is locked to PHP 8.2.

3️⃣ Run Composer Install with PHP 8.2

To safely install dependencies using the correct PHP version:

ea-php82 /opt/cpanel/composer/bin/composer install

This ensures that:

  • The correct PHP runtime is used.
  • Dependencies match the lock file exactly.
  • Autoloader is optimized for performance in production.

Conclusion

By following this process, you:

  • Respect the version constraints defined in your composer.lock.
  • Avoid conflicts between development and server environments.
  • Maintain consistency and stability during deployment or server setup.

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