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<?php $name = 'SlimDuct 2-3/4" White 90° Flat Elbow SK77W'; $str = strtolower(trim(preg_replace('/[^a-zA-Z0-9]+/', '-', $name), '-')); echo $str. "\n"; ?>
Output for 4.3.0 - 7.1.0
slimduct-2-3-4-white-90-flat-elbow-sk77w