ArrayObject::natcasesort

    (PHP 5 >= 5.2.0, PHP 7, PHP 8)

    ArrayObject::natcasesort — Sort an array using a case insensitive "natural order" algorithm

    说明

    publicArrayObject::natcasesort(): true

    This method is a case insensitive version of ArrayObject::natsort.

    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".

    注意:

    如果两个成员完全相同，那么它们将保持原来的顺序。 在 PHP 8.0.0 之前，它们在排序数组中的相对顺序是未定义的。

    参数

    此函数没有参数。

    返回值

    没有返回值。

    更新日志

    版本说明
    8.2.0 现在返回类型为 true；之前是 bool。

    示例

    示例 #1 ArrayObject::natcasesort() example

    <?php
    $array     = array('IMG0.png', 'img12.png', 'img10.png', 'img2.png', 'img1.png', 'IMG3.png');

    $arr1 = new ArrayObject($array);
    $arr2 = clone $arr1;

    $arr1->asort();
    echo     "Standard sorting\n";
    print_r($arr1);

    $arr2->natcasesort();
    echo     "\nNatural order sorting (case-insensitive)\n";
    print_r($arr2);
    ?>

    以上示例会输出：

    Standard sorting ArrayObject Object ( [0] => IMG0.png [5] => IMG3.png [4] => img1.png [2] => img10.png [1] => img12.png [3] => img2.png ) Natural order sorting (case-insensitive) ArrayObject Object ( [0] => IMG0.png [4] => img1.png [3] => img2.png [5] => IMG3.png [2] => img10.png [1] => img12.png )

    For more information see: Martin Pool's » Natural Order String Comparison page.

    参见

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