<html lang="ko">
<head>
<meta charset="UTF-8">
<title>PHP Operators</title>
</head>
<body>
$str_01 = "PHP 수업";
$str_02 = "에 오신것을 환영합니다!";
echo "두 문자열을 합친 문자열은 '".($str_01.$str_02)."'입니다.<br>";
echo $str_01, $str_02;
</body>
</html>