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<?php $texts = [ 3 => 'Fizz', 5 => 'Buzz', 7 => 'Gezz' ]; echo join(', ', array_map(function($x) use ($texts) { $y = ''; foreach($texts as $d=>$text) { if($x%$d==0) $y .= $text; } return $y?:$x; }, range(1, 100)));

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40.38 ms | 402 KiB | 5 Q