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<?php preg_match("/(\w+)?/", "",$matches); print_r($matches); echo "\n"; preg_match("/(\w*)/", "",$matches); print_r($matches); $test='test'; $btest= preg_match("/^\w+$/i", $test); print_r($test); print_r($btest . '-');

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46.37 ms | 402 KiB | 5 Q