この配列の最大値を見つける方法。最小値

この配列の最大値を見つける方法。 。 。最小値、
配列 ( [0] => 配列 ( [0] => 1377045490 ) [1] => 配列 ( [0] => 1377045490 ) [2] => 配列 ( [0] => 1377045490 ) [3] => 配列 ( [0] => 1377046853 ) [4] => 配列 ( [0] => 1377046853 ) [5] => 配列 ( [0] => 1377046853 ) [6] => 配列 ( [ 0] => 1377046853 ) [7] => 配列 ( [0] => 1377046853 ) [8] => 配列 ( [0] => 1377046853 ) [9] => 配列 ( [0] => 1377046853 ) [10 ] => 配列 ( [0] => 1377046853 ) [11] => 配列 ( [0] => 1377046853 ) [12] => 配列 ( [0] => 1377046853 ) [13] => 配列 ( [0] => 1377046853 ) [14] => 配列 ( [0] => 1377046853 ) [15] => 配列 ( [0] => 1376960477 ) [16] => 配列 ( [0] => 1376960477 ) [17] = > 配列 ( [0] => 1376960477 ) [18] => 配列 ( [0] => 1376960477 ) [19] => 配列 ( [0] => 1376960477 ) [20] => 配列 ( [0] => 1376960477 ) [21] => 配列 ( [0] => 1376960477 ) [22] => 配列 ( [0] => 1376960477 ) [23] => 配列 ( [0] => 1376960477 ) [24] => 配列( [0] => 1376960477 ) [25] => 配列 ( [0] => 1376960477 ) [26] => 配列 ( [0] => 1376960477 ) [27] => 配列 ( [0] => 1376960477 ) [28] => 配列 ( [0] => 1376960477 ) [29] => 配列 ( [0] => 1376960477 ) [30] => 配列 ( [0] => 1376960477 ) [31] => 配列 ( [ 0] => 1376881355 ) [32] => 配列 ( [0] => 1376881355 ) [33] => 配列 ( [0] => 1376881355 ) [34] => 配列 ( [0] => 1376874046 ) [35 ] => 配列 ( [0] => 1376874046 ) [36] => 配列 ( [0] => 1376874046 ) [37] => 配列 ( [0] => 1376874046 ) [38] => 配列 ( [0] => 1376874046 ) [39] => 配列 ( [0] => 1376874046 ) )