PHP Manual
Prev |  | Next

# 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.

> Note: 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.

Returns `TRUE` on success or `FALSE` on failure.

Example 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"; } ?>`
This example would display:
    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

- `SORT_NUMERIC` - compare items numerically

- `SORT_STRING` - compare items as strings

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

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

Prev | Home | Next
sizeof | Up | uasort