PHP arsort() Function Usage and Example

PHP Array Function Manual

The arsort() function sorts an array in reverse order while preserving the index relationship

Syntax

arsort(array &$array[, int $sort_flags = SORT_REGULAR]);

Definition and Usage

This function sorts the array while keeping the index relationship between the array and the elements.
主要用于对那些单元顺序很重要的组合数组进行排序。

Return Value

　Returns TRUE on success, or FALSE on failure.

Parameter

Online Example

<?php
$fruits = array("d" => "lemon", "a" => "orange", "b" => "banana", "c" => "apple");
arsort($fruits);
foreach ($fruits as $key => $val) {
　　　　echo "$key = $val\n";
}
?>

Output Result:

a = orange
d = lemon
b = banana
c = apple

　 PHP Array Function Manual