php从下拉列表中获取操作值


php from action value get from drop-down list

我的目标是获得两个下拉值和1。将它们传递给CCD_ 1和2。将它们传递给$_POST到下一个.php页面。简而言之,我想使用drop-down菜单选择actionphp页面。

我在这里做错了什么,无论我从page下拉菜单中选择什么,它总是默认选择page1.php

<html>
<body>
<select name='page'>
<option value='page1.php'>page1</option>
<option value='page2.php'>page2</option>
</select>
<form name="page" method="post" action="<?php echo $_POST['page']; ?>">
<?php
// DB connection info:
include 'db_connection.php';
$sql = "SHOW tables";
$result = mysql_query($sql);
echo "<select name='param1'>";
while ($row = mysql_fetch_array($result)) {
    echo "<option value='" . $row['Tables_in_radius'] . "'>" . $row['Tables_in_radius'] . "</option>";
}
echo "</select>";
?>
<input type="submit" value="send">
</form>
<?php
if(isset($_POST['param1'])){
}
?>
</body>
</html>

1)将下拉菜单放在表单内。

2) 如果(isset($_POST[‘param1']))<--什么是param1?将其更改为:$_POST['page']