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Is there an infinite redirect in regular expressions?
Here the $1 is replaced by the contents of the captured (.*). And so: A frequently occurring problem with regular expression is an infinite redirect. That is, you create a regex that redirects to a URL that is itself caught by the same regular expression.
How can I get regular expression to only match an empty string?
I try to make a regular expression in a .htaccess file, that matches only an empty string. I have tried many things, but it seems like it’s impossible. For example, I tried ^$, but it’s looking for “” that will always exist in a string. So I seek answers to it all possible.
Which is the best empty string in regex?
As for the empty string, ^$ is mentioned by multiple people and will work fine. Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. Provide details and share your research!
Can a regex url match many URLs?
A regex URL can match many URLs. In addition to matching many URLs, a regular expression can extract information from the source URL and copy it to the target URL. A few examples may be helpful.
How to do a redirect loop in PHP?
If you get a redirect loop no matter what you do in htaccess, do the redirect in PHP instead. I used phpinfo (), like @z-m suggests, to find the variable that changes when I’m on SSL. In my case it was $_SERVER [‘HTTP_X_PROTO’] == “https”. When not on SSL, this variable is not set.
Can a regex url match a regular expression?
A regex URL can match many URLs. In addition to matching many URLs, a regular expression can extract information from the source URL and copy it to the target URL. A few examples may be helpful. A redirect that has the source URL /my-url will only ever match requests for /my-url.
When to redirect loop Apache HTTP-> HTTPS rewrite?
Just in case somebody have redirect loop when using Apache http->https rewrite behind load balancer, here’s solution that worked for me. I had the same problem when used RewriteCond % {HTTPS} off for Apache behind load balancer, when load balancer does SSL stuff.