我想在php中获取选定的单选按钮的值。
代码：update.php
<html>
<head>
<link rel="stylesheet" href="css/common.css" type="text/css">
<link rel="stylesheet" type="text/css" href="css/page.css">
<link href="css/loginmodule.css" rel="stylesheet" type="text/css" />
<script>
function showUser(str) {
if (str == "") {
document.getElementById("txtHint").innerHTML = "";
return;
}
if (window.XMLHttpRequest) {
xmlhttp = new XMLHttpRequest();
} else {
xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
}
xmlhttp.onreadystatechange = function () {
if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
document.getElementById("txtHint").innerHTML = xmlhttp.responseText;
}
}
xmlhttp.open("GET", "gettheater.php?q=" + str, true);
xmlhttp.send();
}
</script>
</head>
<body>
<h1>Welcome <?php echo $_SESSION['SESS_FIRST_NAME']; ?></h1>
<a href="member-profile.php" class="log">My Profile</a> | <a href="logout.php" class="log">Logout</a>
<p>This is a password protected area only accessible to Admins. </p>
<center>
<div class="pan"><br><br>
<div class="head">Remove Theater From List</div>
<form action="<?php echo $_SERVER['PHP_SELF']; ?>" method="POST" >
<table>
<tr>
<td>
<table>
<tr>
<td><label for="Theatername">Theater Name</label></td>
<td>
<?php
try {
$dbh = new PDO('mysql:dbname=theaterdb;host=localhost', 'tiger', 'tiger');
} catch (PDOException $e) {
echo 'Connection failed: ' . $e->getMessage();
}
$sql = "SELECT theater_name FROM theater;";
$sth = $dbh->prepare($sql);
$sth->execute();
echo "<select name='theater_name' id='course' onchange='showUser(this.value);'>";
echo "<option>----Select Theater----</option>";
while ($row = $sth->fetch(PDO::FETCH_ASSOC)) {
echo "<option value='" . $row['theater_name'] . "'>" . $row['theater_name'] . "</option>";
}
echo "</select>";
?>
</td>
</tr>
</table>
</td>
</tr>
</form>
<tr>
<td>
<form method="POST">
<table>
<tr>
<td><label for="Address">Address</label></td>
<td><div id="txtHint">
</div></td>
</tr>
<tr>
<td></td>
<td><input type="submit" name='Remove From List' value="Remove From List" class="getvalue" onclick="< ? php myfunc() ? >"/></td>
</tr>
</table>
</table>
</form>
<br><br>
</tr>
</td>
<?php
if (isset($_POST['Submit'])) {
echo $_POST['address'];
}
?>
</div>
</center>
</body>
</html>
代码
gettheater.php
<?php
$q = strtolower(trim($_GET["q"]));
try {
$dbh = new PDO('mysql:dbname=theaterdb;host=localhost', 'tiger', 'tiger');
} catch (PDOException $e) {
echo 'Connection failed: ' . $e->getMessage();
}
$sql = 'SELECT address FROM theater WHERE LOWER(theater_name) = :q';
$sth = $dbh->prepare($sql);
$sth->bindValue(':q', $q);
$sth->execute();
echo "<form name='theater' method='POST' action='update.php'>";
echo "<table border='0' class='tabs'><tr><th>Theater Address</th><th>Select</th></tr>";
while ($row = $sth->fetch(PDO::FETCH_ASSOC)) {
echo "<tr>";
echo "<td class='ad'>" . $row['address'] . "</td>";
echo "<td>";
echo '<input type="radio" name="address" value="43" />';
echo "</td>";
echo "</tr>";
}
echo "</table>";
echo "</form>";
$dbh = null;
?>
单选按钮的html位于gettheater.php页面中。但是我正在运行update.phpgettheater页面，update.php但是如何获取选定的单选按钮值，我想在中获取选定的单选按钮值update.php。
我怎样才能做到这一点？
检查表单是否已提交，然后用于$_POST[]访问数据。
参见http://php.net/manual/en/reserved.variables.post.php
您可能要包括一个提交按钮，这将使您可以检查表单是否首先提交。
echo "<form name='theater' method='POST' action='update.php'>";
echo '<input type="submit" value="Enter" name="submit">';
去检查
if (isset($_POST['submit'])) {
//Do something
}
如果不这样做，则通常可以使用隐藏字段。
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