関連ワード:  create multidimensional array php    create 2d array php    declare multidimensional array php    php create multidimensional array with keys    php create multidimensional array in loop    php create multidimensional array from mysql result    php create multidimensional array dynamically    php create multidimensional array in foreach loop    php create empty multidimensional array    php create multidimensional associative array