How to use php sort function

php sort function is used to sort the index array in ascending order. Its syntax is sort(array, sortingtype). This function assigns new key names to the units in the array. The original key name will be deleted.

#How to use the php sort function?

Definition and usage

The sort() function sorts the index array in ascending order.

Note: This function assigns a new key name to the unit in the array. The original key name will be deleted.

Returns TRUE if successful, otherwise returns FALSE.

Tips: Please use the rsort() function to sort the index array in descending order.

Syntax

sort(array,sortingtype);

Parameters

array Required, specifies the array to be sorted.

sortingtype is optional and specifies how to compare elements/items of the array.

Possible values:

0 = SORT_REGULAR - Default. Put each item in regular order (Standard ASCII, no change of type)

1 = SORT_NUMERIC - Treat each item as a number.

2 = SORT_STRING - Treat each item as a string.

3 = SORT_LOCALE_STRING - Treat each item as a string, based on the current locale (can be changed via setlocale()).

4 = SORT_NATURAL - Treat each item as a string, using natural sorting like natsort().

5 = SORT_FLAG_CASE - Strings can be sorted in combination (bitwise OR) with SORT_STRING or SORT_NATURAL, case-insensitively.

Return value: TRUE if successful, FALSE if failed.

PHP Version: 4

Example 1

Sort the elements in the array $numbers in ascending order by number:

<?php
$numbers=array(4,6,2,22,11);
sort($numbers);
?>

Output:

2
4
6
11
22

Example 2

Sort the elements in the array $cars in ascending alphabetical order:

<?php
$cars=array("Volvo","BMW","Toyota");
sort($cars);
?>

Output:

BMW
Toyota
Volvo

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