文字
xdiff_string_bdiff_size
(PECL xdiff >= 1.5.0)
xdiff_string_bdiff_size — Read a size of file created by applying a binary diff
说明
int xdiff_string_bdiff_size
( string
$patch
)
Returns a size of a result file that would be created after applying binary patch to
the original file.
参数
-
patch -
The binary patch created by xdiff_string_bdiff() or xdiff_string_rabdiff() function.
返回值
Returns the size of file that would be created.
范例
Example #1 xdiff_string_bdiff_size() example
The following code applies reads a size of file that would be created after applying a binary diff.
<?php
$binary_patch = file_get_contents ( 'file.bdiff' );
$length = xdiff_string_bdiff_size ( $binary_patch );
echo "Resulting file will be $length bytes long" ;
?> 参见
- xdiff_string_bdiff() - Make binary diff of two strings
- xdiff_string_rabdiff() - Make binary diff of two strings using the Rabin's polynomial fingerprinting algorithm
- xdiff_string_bpatch() - Patch a string with a binary diff