関連ワード:  php search in array multidimensional    php search in multidimensional array by key value    php search in multidimensional array by value    php find in array multidimensional    php find in multidimensional array by value    php find in multidimensional array by key    php search in two dimensional array    php search key in multidimensional array    php search value in multidimensional array and return key    php search multidimensional array for multiple values