Php/docs/function.grapheme-strlen

• PHP Manual
• Grapheme 函数
• Get string length in grapheme units

grapheme_strlen

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

grapheme_strlen — 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

Example #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