<?php preg_match('/^[\w\.]+$/', 'admin.general.canViewPrivateUserOptions', $matches); var_dump($matches); preg_match('/^[\w-\.]+$/', 'admin.general.canViewPrivateUserOptions', $matches); var_dump($matches); preg_match('/^[\\w-\\.]+$/', 'admin.general.canViewPrivateUserOptions', $matches); var_dump($matches);
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Value for `_results` contains invalid data `array`