xdiff_file_bdiff_size

(PECL xdiff >= 1.5.0)

xdiff_file_bdiff_size — Read a size of file created by applying a binary diff

xdiff_file_bdiff_size(string $file): int

Returns a size of a result file that would be created after applying binary patch from file file to the original file.

file: The path to the binary patch created by xdiff_string_bdiff() or xdiff_string_rabdiff() function.

Returns the size of file that would be created.

示例 #1 xdiff_file_bdiff_size() example

The following code applies reads a size of file that would be created after applying a binary diff.

<?php
$length = xdiff_string_bdiff_size('file.bdiff');
echo "Resulting file will be $length bytes long";
?>

xdiff_file_bdiff() - Make binary diff of two files
xdiff_file_rabdiff() - Make binary diff of two files using the Rabin's polynomial fingerprinting algorithm
xdiff_file_bpatch() - Patch a file with a binary diff

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