rsort
(PHP 4, PHP 5)
rsort — Sort an array in reverse order
Description
bool rsort
( array &$array
[, int $sort_flags
] )
This function sorts an array in reverse order (highest to lowest).
Note: 本函式為 array 中的元素賦予新的鍵名。這將刪除原有的鍵名而不僅是重新排序。
如果成功則回傳 TRUE，失敗則回傳 FALSE。
Example#1 rsort() example
<?php
$fruits = array("lemon", "orange", "banana", "apple");
rsort($fruits);
foreach ($fruits as $key => $val) {
echo "$key = $val\n";
}
?>
上例將輸出：
0 = orange 1 = lemon 2 = banana 3 = apple
The fruits have been sorted in reverse alphabetical order.
You may modify the behavior of the sort using the optional parameter sort_flags , for details see sort().
See also arsort(), asort(), ksort(), krsort(), sort(), and usort().