PHP: rsort() function
PHP: Sort an array in reverse order
This rsort() function is used to sort an array in reverse order (highest to lowest).
Note: If two members compare as equal, their relative order in the sorted array is undefined.
Version:
(PHP 4 and above)
Syntax:
rsort(array1, sort_flags )
Parameters:
| Name | Description | Required / Optional |
Type |
|---|---|---|---|
| array1 | The input array to sort. | Required | Array |
| sort_flags | Sets the sorting behavior. Possible Sorting type flags. 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: Boolean.
Example:
<?php
$subject = array("Language", "English", "Math", "History");
rsort($subject);
foreach ($subject as $key => $val)
{
echo "subject[ " . $key . "] = " . $val . "<br />";
}
?>
Output:
subject[ 0] = Math subject[ 1] = Language subject[ 2] = History subject[ 3] = English
Pictorial Presentation:
View the example in the browser
Practice here online :
See also
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https://w3resource.com/php/function-reference/rsort.php
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