[Solved] Parse comma separated string, split array into chunks, then transpose

by


So long as the number of rows is known, it only takes:

  1. a regex to split the string on comma-spaces which immediately follow a one-or-more digits or a word starting with an uppercase letter,
  2. a call of array_chunk() and
  3. array_map() (with a null callback and data spreading) to “transpose” the data.

Code: (Demo)

$string = "Service, Service, Service, 8 mars, 2017, 22 mars, 2017, 5 april, 2017, 08:00, 08:00, 08:00";

$rows = 3;

var_export(
    array_map(
        null,
        ...array_chunk(
            preg_split('/(?:[A-Z][a-z]+|\d+)\K, /', $string),
            $rows
        )
    )
);

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solved Parse comma separated string, split array into chunks, then transpose