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このドキュメントでは、 php中国語ネットマニュアル リリース
(PECL xdiff >= 1.5.0)
xdiff_string_bdiff_size — Read a size of file created by applying a binary diff
$patch
)
Returns a size of a result file that would be created after applying binary patch
to
the original file.
patch
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.
<?php
$binary_patch = file_get_contents ( 'file.bdiff' );
$length = xdiff_string_bdiff_size ( $binary_patch );
echo "Resulting file will be $length bytes long" ;
?>