Sample GET request I want to match on with regex PCRE:
random.php?blue=value1&green=value2&red=value3&orange=value4&grey=value5&black=value6
Facts:
random.php - The filename is random, only the ".php?" is fixed
I have about 10 colors defined as parameters
No specific order to the colors - .php?blue=[a-zA-Z0-9]{1,20}
Can be just 2 colors as parameters, or all the 10, but I want to match on all GET requests, multiple parameters are joined with \&
Values are always between 1-20 and with alphanumerical - .php?blue=[a-zA-Z0-9]{1,20}
How would you approach this?
Perhaps something like:
[^\s/?]+\.php\?((?:blue|orange|red|black)=[a-zA-Z0-9]{1,20})(?:&(?1)){1,9}(?:$|#.*)
(complete with the colours you want)
(?1) is a reference to the first capture group subpattern.
I added a support for an eventual anchor part #.*. Feel free to remove it if you don't need or want it.