xdiff_string_merge3 - Merge 3 strings into one
Merges three strings into one and returns the result. The old_data is an original version of data while new_file1 and new_file2 are modified versions of an original. An optional error is used to pass any rejected parts during merging process.
PHP PECL xdiff >= 0.2.0
Returns the merged string, FALSE if an internal error happened, or TRUE if merged string is empty.