Php/docs/function.xdiff-file-bdiff
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xdiff_file_bdiff
(PECL xdiff >= 1.5.0)
xdiff_file_bdiff — Make binary diff of two files
说明
xdiff_file_bdiff
( string $old_file
, string $new_file
, string $dest
) : bool
Makes a binary diff of two files and stores the result in a patch file. This function works with both text and binary files. Resulting patch file can be later applied using xdiff_file_bpatch()/xdiff_string_bpatch().
参数
old_file- Path to the first file. This file acts as "old" file.
new_file- Path to the second file. This file acts as "new" file.
dest- Path of the resulting patch file. Resulting file contains differences between "old" and "new" files. It is in binary format and is human-unreadable.
返回值
成功时返回 true， 或者在失败时返回 false。
范例
Example #1 xdiff_file_bdiff() example
The following code makes binary diff of two archives.
<?php$old_version = 'my_script_1.0.tgz';$new_version = 'my_script_1.1.tgz';xdiff_file_bdiff($old_version, $new_version, 'my_script.bdiff');?>
注释
Note:
Both files will be loaded into memory so ensure that your memory_limit is set high enough.
