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<?php $arr = [ "manufacturer" => "BB", "width" => "245, 225", "height" => "45, 65", "diameter" => "19, 17", "type" => "AA", ]; var_export( array_map( null, explode(', ', $arr['width']), explode(', ', $arr['height']), explode(', ', $arr['diameter']) ) );
Output for 7.4.0 - 7.4.33, 8.0.1 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
array ( 0 => array ( 0 => '245', 1 => '45', 2 => '19', ), 1 => array ( 0 => '225', 1 => '65', 2 => '17', ), )

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