php regex vsprintf addign斜杠文件扩展名

Question

I have a problem with the following piece of code: pastebin . For example:

/^\/index\.php\/index\/home\/(\w+)$/

It adds a slash before the .php extension. Any ideas how to fix it?

Answer 1

Well, if you pass that example as the uri I see that on line 10 you have preg_quote($uri) . That should be the reason. Since dot (.) has a meaning in Regex the function is escaping it.

But that is what you want I believe since if you strip that slash your regex will match ANY character instead of the dot (including the dot). So any of these will be valid:

indexBphp
index-php
indexmphp
index.php
etc...

Dot in Regex means match any character at this position. So I believe that there is nothing wrong, right?

One way to fix this if you still want to have that dot there is to build the regex in two separate parts:

$urlDivided = explode('.php', $url);
$this->finalRegex = preg_quote($urlDivided[0]) . '.php' . preg_quote($urlDivided[1]);

Obviously, the method above assumes that you always have the '.php' extension in the url. You should do sanity checks.