関連ワード:  php multidimensional array sort    php multidimensional array sort by value    php multidimensional array sort by key    php multidimensional array sort by column    php multidimensional array sort by key value    php 2d array sort    php two dimensional array sort    php sort multidimensional array by multiple values    php sort multidimensional array by value alphabetically    php sort multidimensional array by specific key value