Home > Backend Development > PHP Tutorial > 看不动的正则表达式解决办法

看不动的正则表达式解决办法

WBOY
Release: 2016-06-13 12:58:40
Original
799 people have browsed it

看不动的正则表达式
$compileStr = preg_replace('$\r\n|\x9|\/\/$','', $compileStr);


这里面的 $\r\n|\x9|\/\/$ 是什么含义 哟

特别是那一个 |\x9|


------解决方案--------------------
  就是 或者

\x9 就是16进制9的ascii字符
------解决方案--------------------
$\r\n
------解决方案--------------------
\x9
------解决方案--------------------
\/\/$

\r 回车
\n 换行
\x9 制表符 常写作 \t 就是 Tab 键
\/ 斜杠,转义符 \ 应不要。因为分界符已不是默认的 /,而是自定义的 $



------解决方案--------------------
 逻辑运算符 或

Related labels:
source:php.cn
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template