index.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
<form action="aaa.php">
姓名：<input type="text" name="fn">
<br>
班级：<select name="fb" id="">
<option value="1">1班</option>
<option value="2">2班</option>
</select>
<br>
<input type="submit">
</form>
</body>
</html>
aaa.php
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>211曹传宽03</title>
</head>
<body>
<?php
$ikun = array(
"name" => "蔡徐坤",
"sex" => "男",
"like1" => "唱",
);
$ikun["like2"] = "跳";
$ikun["like3"] = "rap";
foreach($ikun as $key => $i) {
echo "<div href='#' style='color:orange;'>$key ：$i</div>";
echo "<br>";
}
echo $_SERVER["SERVER_PORT"];
echo "<br>";
echo $_SERVER["SCRIPT_FILENAME"];
echo "<br>";
echo "姓名：".$_GET['fn'];
echo "<br>";
echo "班级：".$_GET['fb']."班";
?>
</body>
</html>