How can one ensure that PHP scripts are compatible when transferring them between different servers or environments?

When transferring PHP scripts between different servers or environments, it is important to ensure that all server configurations and dependencies are consistent. One way to achieve compatibility is by using a tool like Composer to manage dependencies and ensure that the necessary packages are installed on the new server. Additionally, it is crucial to test the scripts thoroughly on the new environment to identify and address any compatibility issues before deploying them. 

// Example using Composer to manage dependencies
// Install Composer on both servers and run 'composer install' to ensure all dependencies are installed

// Example using PHP version check
if (version_compare(PHP_VERSION, '7.0.0') < 0) {
    die('PHP version 7.0.0 or higher is required');
}

Keywords

PHP server configuration environment variables file paths compatibility

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