grapheme_strlen

(PHP 5 >= 5.3.0, PHP 7, PHP 8, PECL intl >= 1.0.0)

grapheme_strlen — Get string length in grapheme units

Description

Procedural style

grapheme_strlen(string $string): int|false|null

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

Parameters

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

Return Values

The length of the string on success, or false on failure.

Examples

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);

?>

The above example will output:

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User Contributed Notes 1 note

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jonhoggg at gmail dot com ¶

3 years ago

You can use grapheme_strlen() to count emojis as a single character:

<?php
    echo strlen('🏴󠁧󠁢󠁥󠁮󠁧󠁿'); /28 - oh no
    echo mb_strlen('🏴󠁧󠁢󠁥󠁮󠁧󠁿'); / - closer, but no
    echo grapheme_strlen('🏴󠁧󠁢󠁥󠁮󠁧󠁿'); /1 - Bingo
?>