3v4l.org

run code in 150+ php & hhvm versions
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<?php echo preg_replace('/(?!0-9a-záéíóúñ\ )/i', '', 'CABáAÐA DIEGO LEONARDO') ?>
based on kjbga
Output for 4.3.0 - 7.1.0
CABáAÐA DIEGO LEONARDO