What are the best practices for naming variables in PHP to avoid potential conflicts or issues?

To avoid potential conflicts or issues when naming variables in PHP, it is important to follow best practices such as using descriptive names, avoiding reserved keywords, and adhering to a consistent naming convention (e.g. camelCase or snake_case). Additionally, it is recommended to prefix variables with a unique identifier to further reduce the risk of naming conflicts.

// Example of using a unique prefix to avoid naming conflicts
$myUniquePrefix_variableName = 'value';