Small php coding job

General information for the website: We provide serviced office space
Description of requirements/features: In a section of my website, my URLs are formatted like this:

http://www.angeloffices.com/index.php/city/LOCATION1/LOCATION2

For example:

http://www.angeloffices.com/index.php/city/Godstone/Surrey

The bit that always stays the same is http://www.angeloffices.com/index.php/city/

But some URLS only have one location rather than two, like this:

http://www.angeloffices.com/index.php/city/bristol

Some URLS have spaces in the place names which are handled like this:

http://www.angeloffices.com/index.php/city/Aztec%20West/Bristol

I would like a little php script that parses the URL and creates two variables from LOCATION1 and LOCATION2 e.g. $location1 and $location2 so I can then use print to show these values. If there is no LOCATION2 the value of LOCATION2 should not be set, so I can check for this.

The reason I want this is because I am creating automatic meta titles and descriptions for pages that don't have them (i.e. some 45,000).

If there is a space in the URL that uses %20 I need it to be stripped out so I can just print the variable with actually printing the %20 bit.

You don't need to write the bit that creates the meta titles etc. You just need to write a bit of php that parses the URL and returns LOCATION1 as a variable and LOCATION2 if it exists, or don't set LOCATION2 if it doesn't, and make sure the spaces are handled properly so I can just print the variables.

Hope that makes sense!
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