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

xdiff_string_bdiff_size(string $patch): int

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.

示例

示例 #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