grapheme_strpos    24 ext/intl/grapheme/grapheme.h PHP_FUNCTION(grapheme_strpos);
grapheme_strpos   107 ext/intl/grapheme/grapheme_string.c PHP_FUNCTION(grapheme_strpos)
grapheme_strpos   733 ext/intl/php_intl.c 	PHP_FE( grapheme_strpos, grapheme_search_args )