1--TEST-- 2grapheme_substr() - Bug55562 - grapheme_substr() returns false if length parameter is to large 3--SKIPIF-- 4<?php if( !extension_loaded( 'intl' ) ) print 'skip'; ?> 5--FILE-- 6<?php 7var_dump( 8 grapheme_substr('FOK', 1, 20), // expected: OK 9 grapheme_substr('한국어', 1, 20) //expected: 국어 10); 11--EXPECT-- 12string(2) "OK" 13string(6) "국어" 14