What are the best practices for naming files in PHP to avoid conflicts with reserved keywords or protocols?

When naming files in PHP, it's important to avoid using reserved keywords or protocols to prevent conflicts. To address this, you can prefix your file names with a unique identifier or use descriptive names that clearly indicate the purpose of the file. Additionally, avoid using names that are too generic or commonly used in the PHP language to minimize the risk of clashes.

// Example of naming a file using a unique identifier prefix
$uniquePrefix = 'myapp_';
$fileName = $uniquePrefix . 'functions.php';