php_similar_char 3583 ext/standard/string.c sum += php_similar_char(txt1, pos1, php_similar_char 3587 ext/standard/string.c sum += php_similar_char(txt1 + pos1 + max, len1 - pos1 - max, php_similar_char 3621 ext/standard/string.c sim = php_similar_char(ZSTR_VAL(t1), ZSTR_LEN(t1), ZSTR_VAL(t2), ZSTR_LEN(t2));