分別會介紹隨機排列、大到小排列(根據值、根據Key、不改變index)、小到大排列(根據值、根據Key、不改變index)，總共7種方式排序。
程式碼：
<?php //原始陣序 $array = array(5,8,9,5,4,4,2,1,0,5,8,7,4,5,2,6,3,5,1,5); //隨機排序 shuffle($array); echo "隨機排列\n"; print_r($array); //小到大排序(根據值，會改變index) sort($array); echo "小到大排序(根據值，會改變index)\n"; print_r($array); //大到小排序(根據值，會改變index) rsort($array); echo "大到小排序(根據值，會改變index)\n"; print_r($array); //小到大排序(根據值，不改變index) asort($array); echo "小到大排序(根據值，不改變index)\n"; print_r($array); //大到小排序(根據值，不改變index) arsort($array); echo "大到小排序(根據值，不改變index)\n"; print_r($array); //小到大排序(根據key) ksort($array); echo "小到大排序(根據key)\n"; print_r($array); //大到小排序(根據key) krsort($array); echo "大到小排序(根據key)\n"; print_r($array); ?> |
執行結果：
隨機排列
Array
(
[0] => 2
[1] => 5
[2] => 7
[3] => 5
[4] => 3
[5] => 1
[6] => 4
[7] => 9
[8] => 5
[9] => 4
[10] => 5
[11] => 6
[12] => 5
[13] => 5
[14] => 8
[15] => 8
[16] => 4
[17] => 1
[18] => 2
[19] => 0
)
小到大排序(根據值，會改變index)
Array
(
[0] => 0
[1] => 1
[2] => 1
[3] => 2
[4] => 2
[5] => 3
[6] => 4
[7] => 4
[8] => 4
[9] => 5
[10] => 5
[11] => 5
[12] => 5
[13] => 5
[14] => 5
[15] => 6
[16] => 7
[17] => 8
[18] => 8
[19] => 9
)
大到小排序(根據值，會改變index)
Array
(
[0] => 9
[1] => 8
[2] => 8
[3] => 7
[4] => 6
[5] => 5
[6] => 5
[7] => 5
[8] => 5
[9] => 5
[10] => 5
[11] => 4
[12] => 4
[13] => 4
[14] => 3
[15] => 2
[16] => 2
[17] => 1
[18] => 1
[19] => 0
)
小到大排序(根據值，不改變index)
Array
(
[19] => 0
[17] => 1
[18] => 1
[15] => 2
[16] => 2
[14] => 3
[11] => 4
[12] => 4
[13] => 4
[10] => 5
[9] => 5
[6] => 5
[7] => 5
[5] => 5
[8] => 5
[4] => 6
[3] => 7
[1] => 8
[2] => 8
[0] => 9
)
大到小排序(根據值，不改變index)
Array
(
[0] => 9
[2] => 8
[1] => 8
[3] => 7
[4] => 6
[6] => 5
[7] => 5
[8] => 5
[9] => 5
[5] => 5
[10] => 5
[12] => 4
[13] => 4
[11] => 4
[14] => 3
[16] => 2
[15] => 2
[17] => 1
[18] => 1
[19] => 0
)
小到大排序(根據key)
Array
(
[0] => 9
[1] => 8
[2] => 8
[3] => 7
[4] => 6
[5] => 5
[6] => 5
[7] => 5
[8] => 5
[9] => 5
[10] => 5
[11] => 4
[12] => 4
[13] => 4
[14] => 3
[15] => 2
[16] => 2
[17] => 1
[18] => 1
[19] => 0
)
大到小排序(根據key)
Array
(
[19] => 0
[18] => 1
[17] => 1
[16] => 2
[15] => 2
[14] => 3
[13] => 4
[12] => 4
[11] => 4
[10] => 5
[9] => 5
[8] => 5
[7] => 5
[6] => 5
[5] => 5
[4] => 6
[3] => 7
[2] => 8
[1] => 8
[0] => 9
)
|
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