strnatcasecmp

    (PHP 4, PHP 5, PHP 7, PHP 8)

    strnatcasecmp — Case insensitive string comparisons using a "natural order" algorithm

    Опис

    strnatcasecmp(string $string1, string $string2): int

    This function implements a comparison algorithm that orders alphanumeric strings in the way a human being would. The behaviour of this function is similar to strnatcmp(), except that the comparison is not case sensitive. For more information see: Martin Pool's » Natural Order String Comparison page.

    Параметри

    string1

    The first string.

    string2

    The second string.

    Значення, що повертаються

    Similar to other string comparison functions, this one returns -1 if string1 is less than string2 1 if string1 is greater than string2, and 0 if they are equal.

    Журнал змін

    Версія Опис
    8.2.0 Тепер ця функція повертає -1 або 1, а не від'ємне або додатнє число, як раніше.

    Приклади

    Приклад #1 strnatcasecmp() example

    <?php

    var_dump    (strnatcasecmp('Apple', 'Banana'));
    var_dump(strnatcasecmp('Banana', 'Apple'));
    var_dump(strnatcasecmp('apple', 'Apple'));
    ?>

    Поданий вище приклад виведе:

    int(-1)
int(1)
int(0)

    Прогляньте також

    • preg_match() - Perform a regular expression match
    • strcmp() - Binary safe string comparison
    • strcasecmp() - Binary safe case-insensitive string comparison
    • substr() - Return part of a string
    • stristr() - Case-insensitive strstr
    • strncasecmp() - Binary safe case-insensitive string comparison of the first n characters
    • strncmp() - Binary safe string comparison of the first n characters
    • strstr() - Find the first occurrence of a string
    • setlocale() - Set locale information

    Improve This Page

    Learn How To Improve This Page • Submit a Pull Request • Report a Bug
    ＋add a note

    User Contributed Notes 2 notes

    up
    9
    chatfielddaniel at googlemail dot com
    13 years ago
    The function treats '_' as after letters and numbers when it would be placed before logically.
    up
    4
    Marco
    8 years ago
    Use strnatcmp to avoid the _ problem as mentioned below;

    << The function treats '_' as after letters and numbers when it would be placed before logically. >>
    ＋add a note
    To Top