filereader-test How to Install Clone the project. Run the command for autoload files: composer install. How to Run Please put/upload uploadable files in the root directory. Run parser.php --file example_1.csv --unique-combinations=combination_count.csv in command prompt. File parameter [example_1.csv] must be compulsory while running the parser PHP file Unique combinations parameter [e.g. combination_count.csv] is optional. If you will pass Unique combinations parameter then it will generate the output CSV file as per the name given by you. If you will not pass Unique combinations parameter then it will generate output file combination_count.csv by default. CSV, JSON and XML file extensions are allowed.