Preg_match regex help?

Not quite: (0-9a-z/-+) is "a number, followed by a letter, followed by at least one dash You want (-0-9a-z+).

Not quite: (0-9a-z/-+) is "a number, followed by a letter, followed by at least one dash. " You want (-0-9a-z+).

I would just use \w: preg_match('! /(-\w+)/? $!', $_SERVER'REQUEST_URI', $m); From Character Classes or Character Sets: \w stands for "word character", usually A-Za-z0-9_.

Notice the inclusion of the underscore and digits.

W stands for word, can be letter both upper case and lower case A to Z and a to z, number 0 to 9 or _. It's equivalent to A-Za-z0-9_. You can test in the online tester here.

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