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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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