PHP_CompatInfo : The Definitive Guide

fields-values-separated-by identify the delimiter of values when there is a list given (extensions, constants, tokens). Default is ,

fields-terminated-by identify the delimiter of fields (those given by the output-level directive). Default is ;

fields-enclosed-by identify the protect field character if content have one or more restrictive character as given by previous options. Default is "

lines-terminated-by identify the end-of-line character. Usefull if you want to generate a file for another platform than those who have produced the results. Default is PHP_EOL constant