Php/docs/arrayobject.natsort
ArrayObject::natsort
(PHP 5 >= 5.2.0, PHP 7)
ArrayObject::natsort — Sort entries using a "natural order" algorithm
说明
public ArrayObject::natsort ( ) : void
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.
参数
此函数没有参数。
返回值
没有返回值。
范例
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);?>
以上例程会输出：
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.
参见
- ArrayObject::asort() - Sort the entries by value
- ArrayObject::ksort() - Sort the entries by key
- 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
