正则表达式以匹配url中的所有.php文件扩展名，除非在admin部分中找到

Question

I need to redirect all traffic on the live site to the same URL without the .php file extension, if the .php file extension is found. However, since this is a wordpress site, I need to exclude wp-login.php and any .php extension found in a url that has wp-admin/* within it.

How can I accomplish this via a regex:

Currently, this matches all .php file extensions (.*).php /$1

But how to exclude wp-login.php and anytime the url contains wp-admin and ends with a .php extension?

Here's what I've tried for excluding wp-login.php, but isn't working, just not sure how to do this: (\\/)(^[wp\\-login])?(.*).php /$1

How to do this properly? And also exclude the wp-admin folder in the url with any strings that end with .php?

For example:

/testing.php - Needs to Match 
/wp-login.php - Should not Match 
/wp-admin/edit-post.php - Should not Match 
/wp-admin/tools.php?page=testing.php - Should not Match 
/product/category/testing.php - Should Match

Answer 1

Here's the regex you need:

^\/(?!wp-login|wp-admin).*\.php$

See the results here https://regex101.com/r/f4GWDB/2/

/testing.php   MATCH
/wp-login.php  X
/wp-admin/edit-post.php   X
/wp-admin/tools.php?page=testing.php   X
/product/category/testing.php   MATCH

Answer 2

You can use the following regex:

^\/((?!(wp-login|wp-admin)).*)\.php$

You can see the verification of the regex here

/testing.php                           -  matches
/wp-login.php                          -  does not match
/wp-admin/edit-post.php                -  does not match
/wp-admin/tools.php?page=testing.php   -  does not match
/product/category/testing.php          -  matches