Funcții ale tablourilor (Array)
PHP Manual

sort

(PHP 4, PHP 5)

sortSort an array

Descrierea

bool sort ( array &$array [, int $sort_flags = SORT_REGULAR ] )

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

Parametri

array

The input array.

sort_flags

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. It uses the locale, which can be changed using setlocale()
  • SORT_NATURAL - compare items as strings using "natural ordering" like natsort()
  • SORT_FLAG_CASE - can be combined (bitwise OR) with SORT_STRING or SORT_NATURAL to sort strings case-insensitively

Valorile întoarse

Întoarce valoarea TRUE în cazul succesului sau FALSE în cazul eșecului.

Istoria schimbărilor

Versiunea Descriere
5.4.0 Added support for SORT_NATURAL and SORT_FLAG_CASE as sort_flags
5.0.2 Added SORT_LOCALE_STRING

Exemple

Example #1 sort() example

<?php

$fruits 
= array("lemon""orange""banana""apple");
sort($fruits);
foreach (
$fruits as $key => $val) {
    echo 
"fruits[" $key "] = " $val "\n";
}

?>

Exemplul de mai sus va afișa:

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

The fruits have been sorted in alphabetical order.

Example #2 sort() example using case-insensitive natural ordering

<?php

$fruits 
= array(
    
"Orange1""orange2""Orange3""orange20"
);
sort($fruitsSORT_NATURAL SORT_FLAG_CASE);
foreach (
$fruits as $key => $val) {
    echo 
"fruits[" $key "] = " $val "\n";
}

?>

Exemplul de mai sus va afișa:

fruits[0] = Orange1
fruits[1] = orange2
fruits[2] = Orange3
fruits[3] = orange20

The fruits have been sorted like natcasesort().

Note

Notă: Această funcție atribuie chei noi elementelor din array. Ea va elimina cheile existente, care posibil au fost atribuite, în loc doar să rearanjeze cheile.

Notă: Like most PHP sorting functions, sort() uses an implementation of » Quicksort. The pivot is chosen in the middle of the partition resulting in an optimal time for already sorted arrays. This is however an implementation detail you shouldn't rely on.

Avertizare

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

Vedeți de asemenea


Funcții ale tablourilor (Array)
PHP Manual