函数参考
PHP Manual

xdiff Functions

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.

Note: You'll need at least libxdiff 0.7 for these functions to be aware of memory_limit.

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:

Example#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

以下常量由本扩展模块定义,因此只有在本扩展模块被编译到 PHP 中,或者在运行时被动态加载后才有效。

XDIFF_PATCH_NORMAL (integer)
XDIFF_PATCH_REVERSE (integer)

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函数参考
PHP Manual