xdiff_string_bdiff
(PECL xdiff >= 1.5.0)
xdiff_string_bdiff — Make binary diff of two strings
说明
   xdiff_string_bdiff
    ( string 
  $old_data
   , string $new_data
   ) : stringMakes a binary diff of two strings and returns the result. This function works with both text and binary data. Resulting patch can be later applied using xdiff_string_bpatch()/xdiff_file_bpatch().
参数
- 
old_data
- 
      First string with binary data. It acts as "old" data. 
- 
new_data
- 
      Second string with binary data. It acts as "new" data. 
返回值
   Returns string with binary diff containing differences between "old" and "new"
   data or FALSE if an internal error occurred.