| protected is_token_end ( string $letter ) : boolean | ||
| $letter | string | |
| return | boolean | |
protected function is_token_end($letter)
{
/* [^a-zA-Z0-9_] */
return !('a' <= $letter && 'z' >= $letter || 'A' <= $letter && 'Z' >= $letter || '0' <= $letter && '9' >= $letter || $letter == "_");
}