[RESOLVED] preg_match help

[condoug]

Hi all

Just need someone to help me out with a preg_match rule.

At the moment I have this which checks to see if the string /payment/ is not in the URL:

if (!preg_match('/(\/payment)/',$_SERVER['REQUEST_URI'],$matches)) {

But i need it to include /confirmation/ also. Can someone change it to include this?

I have basic knowledge of reg ex's etc.

Many Thanks
Doug

[condoug]

Thanks - I figured it out with trial and error:

if (!preg_match('/(\/payment|\/confirmation)/',$_SERVER['REQUEST_URI'],$matches)) {

[nrg_alpha]

If you are simply using preg_match in an if statement as a boolean test to see if it matches something or not, (yet, you will not make explicit use of matched elements afterwards), you do not need to include the third argument [$matches] within preg.

When using alternations (...|...), this acts as a capture (not to be confused with matching) as well (which in this case stores whichever it finds within the alternation into the variable $1 (I think regex still stores this even without the $matches paramter) You can make it non-capturing instead by using (?: ... | ...)

Finally, since you are using / as delimiters, as you can see, you need to escape those same characters throughout your path.. you could use other delimiters that eleviate the need to escape those...

if (!preg_match('#(?:/payment|/confirmation)#',$_SERVER['REQUEST_URI'])) {

Just lends to easier readability