PHP asort() Function Usage and Example

PHP Array Function Manual

The asort() function sorts an array while maintaining the index relationship

Syntax

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

Definition and Usage

　This function sorts the array while keeping the index relationship between the array and its elements. It is mainly used to sort combined arrays where the order of the elements is very important.

Return Value

　Returns TRUE on success, or FALSE on failure.

Parameter

Online Example

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

Output Result:

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

　 PHP Array Function Manual