Makes a diff of two files and stores the result in a file.
file1
file2
dest
Path of the resulting file.
context
Indicates how many lines of context you want to include in diff result.
minimal
Set this parameter to TRUE if you want to minimalize size of diff (can take a long time). Resulting file is human-readable.
Note: This function doesn't work well with binary files. To make diff of binary files use xdiff_file_diff_binary().