[int$flags = DIFF_PATCH_NORMAL]
Patches a file with a patch and stores the result in a file. patch has to be an unified diff created by xdiff_file_diff/xdiff_string_diff function. An optional flags parameter specifies mode of operation.
The original file.
The unified patch file. It has to be created using xdiff_string_diff, xdiff_file_diff functions or compatible tools.
Path of the resulting file.
Can be either XDIFF_PATCH_NORMAL (default mode, normal patch) or XDIFF_PATCH_REVERSE (reversed patch).
Starting from version 1.5.0, you can also use binary OR to enable XDIFF_PATCH_IGNORESPACE flag.
Returns false if an internal error happened, string with rejected chunks if patch couldn't be applied or true if patch has been successfully applied.