grapheme_strlen
(PHP 5 >= 5.3.0, PHP 7, PHP 8, PECL intl >= 1.0.0)
grapheme_strlen — Get string length in grapheme units
说明
过程化风格
grapheme_strlen
( string
$string
) : int|false|nullGet string length in grapheme units (not bytes or characters)
参数
-
string -
The string being measured for length. It must be a valid UTF-8 string.
返回值
The length of the string on success, 或者在失败时返回 false.
范例
示例 #1 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