PHP sort() function

example

An array $cars The elements in are sorted alphabetically in ascending order ：

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

Definition and Usage

sort() Function to sort the index array in ascending order .

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

Return if successful TRUE, Otherwise return to FALSE.

grammar

sort(array,sortingtype);

Parameters	describe
array	It's necessary . Specify the array to sort .
sortingtype	Optional . Specifies how to compare elements of an array / project . Possible value ：0 = SORT_REGULAR - Default . Put each item in the regular order （Standard ASCII, Don't change the 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 （ It can be done by setlocale() Make changes ）.4 = SORT_NATURAL - Treat each item as a string , Use similar natsort() Natural ordering .5 = SORT_FLAG_CASE - Can combine （ Press bit or ）SORT_STRING or SORT_NATURAL Sort strings , Case insensitive .

• 0 = SORT_REGULAR - Default . Put each item in the regular order （Standard ASCII, Don't change the 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 （ It can be done by setlocale() Make changes ）.
• 4 = SORT_NATURAL - Treat each item as a string , Use similar natsort() Natural ordering .
• 5 = SORT_FLAG_CASE - Can combine （ Press bit or ）SORT_STRING or SORT_NATURAL Sort strings , Case insensitive .

Technical details

Return value ：	Return if successful TRUE, If it fails, return to FALSE.
PHP edition ：	4+

More instances

Example 1

An array $numbers The elements in are sorted in ascending numerical order ：

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