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<?php $name = 'Fortress 3-1/2" White Coupler LJ92W'; $str = strtolower(trim(preg_replace('/[^a-zA-Z0-9]+/', '-', $name), '-')); echo $str. "\n"; ?>
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
fortress-3-1-2-white-coupler-lj92w