(PHP 5 >= 5.2.0, PHP 7, PHP 8)
ArrayObject::natsort — Sort entries using a "natural order" algorithm
This method implements a sort algorithm that orders alphanumeric strings in the way a human being would while maintaining key/value associations. This is described as a "natural ordering". An example of the difference between this algorithm and the regular computer string sorting algorithms (used in ArrayObject::asort) method can be seen in the example below.
Nota:
If two members compare as equal, they retain their original order. Prior to PHP 8.0.0, their relative order in the sorted array was undefined.
Questa funzione non contiene parametri.
Nessun valore viene restituito.
| Versione | Descrizione |
|---|---|
| 8.2.0 |
The return type is true now; previously, it was bool.
|
Example #1 ArrayObject::natsort() example
<?php
$array = array("img12.png", "img10.png", "img2.png", "img1.png");
$arr1 = new ArrayObject($array);
$arr2 = clone $arr1;
$arr1->asort();
echo "Standard sorting\n";
print_r($arr1);
$arr2->natsort();
echo "\nNatural order sorting\n";
print_r($arr2);
?>Il precedente esempio visualizzerà:
Standard sorting
ArrayObject Object
(
[3] => img1.png
[1] => img10.png
[0] => img12.png
[2] => img2.png
)
Natural order sorting
ArrayObject Object
(
[3] => img1.png
[2] => img2.png
[1] => img10.png
[0] => img12.png
)
For more information see: Martin Pool's » Natural Order String Comparison page.