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<?php $subject = 'this is:d-123,ithink'; var_dump( preg_match('/\bd-(\d+)\b/', $subject, $matches) ); var_dump( $matches );
Output for git.master, git.master_jit, rfc.property-hooks
int(1) array(2) { [0]=> string(5) "d-123" [1]=> string(3) "123" }

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