简介

xdiff extension creates and applies patches to both text and binary files.

需求

To use xdiff, you will need libxdiff installed, available on the libxdiff homepage http://www.xmailserver.org/xdiff-lib.html.

安装

xdiff is currently available through PECL http://pecl.php.net/package/xdiff.

If PEAR is available on your *nix-like system you can use the pear installer to install the xdiff extension, by the following command: pear -v install xdiff.

You can always download the tar.gz package and install xdiff by hand:

例子 1. xdiff install by hand gunzip xdiff-xxx.tgz tar -xvf xdiff-xxx.tar cd xdiff-xxx phpize ./configure && make && make install

预定义常量

由于这些常量是由该扩展模块定义的，因此只有在该扩展模块被编译到 PHP 中，或者在运行时被动态加载后，这些常量才有效。