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PHP Manual for

sort

(PHP 3, PHP 4 )

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().

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