preg_match last characters after hyphen

Question

Can anybody help me please. I get an url and need to take the last part after -.

Example data

• game-when-no-one-at-xhU8c0dL
• coins-at-the-desk-1xhz83c
• example-example-1391340

Result needed

• xhU8c0dL
• 1xhz83c
• 1391340

I just made a regex to take some last characters, but number of symbols can be 7 or 8.

preg_match('/.{7}(?=($|\r|\n))/')

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Edit

This will work: preg_match('/[^-]*$/')