Text filtering is the process of taking an input stream of text and performing some conversion on the text before sending it to an output stream.
文本过滤指的是这样一个过程：获得文本的输入流，并在将文本发送给输出流之前对文本执行一些转换。
In this second part of a five-part series, we continue to introduce the new features of PHP V5.2, this time focusing on input filtering.
本文是共有五部分的系列文章的第二部分，我们将继续介绍PHP V5.2的新增功能，本文主要介绍输入过滤。
Such filtering is most often done by constructing a pipeline of commands where the output from one command is piped or redirected to be used as input to the next.
这种过滤通常是通过构造命令管道线 来完成的，其中来自一个命令的输出被导入 或重定向 为下一个命令的输入。
应用推荐