(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 patch to
the original file.
Returns the size of file that would be created.
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";
?>