(PHP 5 >= 5.3.0, PHP 7, PECL intl >= 1.0.0)
grapheme_strlen — Get string length in grapheme units
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$input
) : intGet string length in grapheme units (not bytes or characters)
inputThe string being measured for length. It must be a valid UTF-8 string.
The length of the string on success, and 0 if the string is empty.
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);
?>
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