What are PSRs? Choose 1 and briefly describe it

PSRs, or PHP Standards Recommendations, are a set of standards proposed by the PHP Framework Interop Group (PHP-FIG) to standardize various aspects of PHP development. These standards cover coding style, design patterns, and interfaces, among other things, to promote consistency and interoperability across different PHP projects[1][2].

One example of a PSR is PSR-4, which is an autoloading standard. PSR-4 specifies how to map namespaces and class names to file paths, aiming to streamline class loading. It replaces the older PSR-0 standard by providing a more flexible dire...