PHP: arsort() function
PHP: Sort an array in reverse order
The arsort() function is used to sort an array in reverse order. The function maintains index association.
This function is used mainly when sorting associative arrays where the actual element order is significant.
Version:
(PHP 4 and above)
Syntax:
arsort(array_name, sort_type)
Parameters:
| Name | Description | Required / Optional |
Type |
|---|---|---|---|
| array_name | Specifies the name of the array to sort. | Required | Array |
| sort_type | Sets the sorting behavior. Possible type : SORT_REGULAR - Compare items normally. SORT_NUMERIC - Compare items numerically. SORT_STRING - Compare items as strings. SORT_LOCALE_STRING - compare items as strings, based on the current locale |
Optional | Integer |
Return value:
TRUE on success or FALSE on failure.
Value Type: Array
Example:
<?php
$subject = array('d' => 'Language', 'c' => 'Math', 'a' => 'Science', 'b'=> 'Geography');
arsort($subject);
foreach ($subject as $key=>$val)
{
echo "$key = $val <br />";
}
?>
Output:
a = Science c = Math d = Language b = Geography
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Practice here online:
See also
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