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  • grapheme_strlen()

    (PHP 5 >= 5.3.0, PHP 7, PECL intl >= 1.0.0)

    Get string length in grapheme units

    说明

    过程化风格
    grapheme_strlen(string $input): int

    Get string length in grapheme units(not bytes or characters)

    参数

    $input

    The string being measured for length. It must be a valid UTF-8 string.

    返回值

    The length of the string on success, and 0 if the string is empty.

    范例

    grapheme_strlen() example

    <?php
    $char_a_ring_nfd = "a\xCC\x8A";  // 'LATIN SMALL LETTER A WITH RING ABOVE' (U+00E5) normalization form "D"
    $char_o_diaeresis_nfd = "o\xCC\x88"; // 'LATIN SMALL LETTER O WITH DIAERESIS' (U+00F6) normalization form "D"
    print grapheme_strlen( 'abc' . $char_a_ring_nfd . $char_o_diaeresis_nfd . $char_a_ring_nfd);
    ?>
    

    以上例程会输出:

    6
    

    参见

    • » Unicode Text Segmentation: Grapheme Cluster Boundaries
    • iconv_strlen()返回字符串的字符数统计
    • mb_strlen()获取字符串的长度
    • strlen()获取字符串长度