Руководство по PHP
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# sort

(PHP 3, PHP 4 , PHP 5)

sort -- Sort an array

## Description

bool sort ( array &array [, int sort_flags] )

This function sorts an array. Elements will be arranged from lowest to highest when this function has completed.

> Замечание: This function assigns new keys for the elements in array. It will remove any existing keys you may have assigned, rather than just reordering the keys.

Возвращает `TRUE` в случае успешного завершения или `FALSE` в случае возникновения ошибки.

Пример 1. sort() example

`<?php $fruits = array("lemon", "orange", "banana", "apple"); sort($fruits); reset($fruits); while (list($key, $val) = each($fruits)) { echo "fruits[" . $key . "] = " . $val . "\n"; } ?>`

Результат выполнения данного примера:

    fruits[0] = apple
    fruits[1] = banana
    fruits[2] = lemon
    fruits[3] = orange

The fruits have been sorted in alphabetical order.

The optional second parameter sort_flags may be used to modify the sorting behavior using these values:

Sorting type flags:

- `SORT_REGULAR` - compare items normally (don't change types)

- `SORT_NUMERIC` - compare items numerically

- `SORT_STRING` - compare items as strings

- `SORT_LOCALE_STRING` - compare items as strings, based on the current locale. Added in PHP 5.0.2

> Замечание: The second parameter was added in PHP 4.

Внимание
Be careful when sorting arrays with mixed types values because sort() can produce unpredictable results.

See also arsort(), asort(), ksort(), natsort(), natcasesort(), rsort(), usort(), array_multisort(), and uksort().

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