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<?php $name = 'setup_foobar'; if (preg_match('~^(setup|teardown)_?(file|run)?_?(.*)~i', $name, $matches)) { print_r($matches); }
Output for 7.3.0 - 7.3.31, 7.4.0 - 7.4.25, 8.0.0 - 8.0.12, 8.1rc1 - rc3
Array ( [0] => setup_foobar [1] => setup [2] => [3] => foobar )

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