preg_replace问题 - ASCII字符？ [英] preg_replace question - ASCII characters?

问题描述

我需要捕获一个网站的引荐来源并填充一个页面，其中包含指向

引用页面的链接。


如何使用preg_replace搜索并用

替换所有&符号（''&''）相应的HTML特殊字符（'& amp;''）？


$ refurl = trim（getenv（" HTTP_REFERER"））;

$ refhost = parse_url（$ refurl）;

$ refhost = preg_replace（" \& \\ \\，" \& amp; \"，$ refhost）;


此代码返回警告并显示错误：


警告：输入中出现意外字符：''\''（ASCII = 92）状态= 1 in ...


解析错误：解析错误，意外'' ;''在...


提前致谢。

I need to capture referrers to a website and populate a page with links to the
referring pages.

How do I use preg_replace to search for and replace all ampersands (''&'') with
the corresponding HTML special character (''&'')?

$refurl = trim(getenv("HTTP_REFERER"));
$refhost = parse_url($refurl);
$refhost = preg_replace("\&\", "\&\", $refhost);

This code returns a warning and an error:

Warning: Unexpected character in input: ''\'' (ASCII=92) state=1 in ...

Parse error: parse error, unexpected '';'' in ...

Thanks in advance.

推荐答案

refurl = trim（getenv（" HTTP_REFERER"））;

refurl = trim(getenv("HTTP_REFERER"));

refhost = parse_url（

refhost = parse_url(

refur l）;

refurl);

这篇关于preg_replace问题 - ASCII字符？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！