预锟斤拷锟藉常锟斤拷

锟斤拷锟叫筹拷锟斤拷锟缴达拷锟斤拷展锟斤拷锟藉，锟揭斤拷锟节达拷锟斤拷展锟斤拷锟斤拷锟斤拷 PHP 锟斤拷锟斤拷锟斤拷锟斤拷时锟斤拷态锟斤拷锟斤拷时锟斤拷锟矫★拷

XDIFF_PATCH_NORMAL (integer)

This flag indicates that xdiff_string_patch() and xdiff_file_patch() functions should create result by applying patch to original content thus creating newer version of file. This is the default mode of operation.

XDIFF_PATCH_REVERSE (integer)

This flag indicated that xdiff_string_patch() and xdiff_file_patch() functions should create result by reversing patch changed from newer content thus creating original version.