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<?php $array = [['xxx', 3], ['yyy', 2]]; var_export( array_reduce( $array, fn($result, $row) => [...$result, ...array_fill(0, $row[1], [$row[0]])], [] ) );
Output for 8.1.32, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
array ( 0 => array ( 0 => 'xxx', ), 1 => array ( 0 => 'xxx', ), 2 => array ( 0 => 'xxx', ), 3 => array ( 0 => 'yyy', ), 4 => array ( 0 => 'yyy', ), )
preferences:
49.73 ms | 406 KiB | 5 Q