(PECL xdiff >= 1.5.0)
xdiff_string_bdiff_size — Read a size of file created by applying a binary diff
Returns a size of a result file that would be created after applying binary
the original file.
The binary patch created by xdiff_string_bdiff() or xdiff_string_rabdiff() function.
Returns the size of file that would be created.
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.
$binary_patch = file_get_contents ( 'file.bdiff' );
$length = xdiff_string_bdiff_size ( $binary_patch );
echo "Resulting file will be $length bytes long" ;