Sort the entries by key

# ArrayObject::ksort

(PHP 5 >= 5.2.0, PHP 7)

ArrayObject::ksort — Sort the entries by key

### Descrierea

public ArrayObject::ksort ( void ) : void

Sorts the entries by key, maintaining key to entry correlations. This is useful mainly for associative arrays.

### Parametri

Această funcție nu are parametri.

### Valorile întoarse

Nu este întoarsă nici o valoare.

### Exemple

Example #1 ArrayObject::ksort() example

`<?php
$fruits = array("d" => "lemon", "a" => "orange", "b" => "banana", "c" => "apple");
$fruitArrayObject = new ArrayObject($fruits);
$fruitArrayObject->ksort();
foreach ($fruitArrayObject as $key => $val) {
echo "$key = $val\n";
}
?>`

Exemplul de mai sus va afișa:

    a = orange
    b = banana
    c = apple
    d = lemon

### A se vedea și

- ArrayObject::asort() - Sort the entries by value
- ArrayObject::natsort() - Sort entries using a "natural order" algorithm
- ArrayObject::natcasesort() - Sort an array using a case insensitive "natural order" algorithm
- ArrayObject::uasort() - Sort the entries with a user-defined comparison function and maintain key association
- ArrayObject::uksort() - Sort the entries by keys using a user-defined comparison function