xdiff_file_diff() makes unified diff of files
file1
and file2
and stores
result in file dest
.
context
indicated how many lines of context you
want to include in diff result. Set minimal
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().
Returns TRUE on success or FALSE on failure.
See also xdiff_string_diff().