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嗨，我在新的Php。爲什麼隱藏的框在php中使用post方法在表單
我在問爲什麼我們使用隱藏文本框並給定值= 1。
<input type="text" name="form_submitted" value="1"/>
<html>
<head>
<title>Registration Form</title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
</head>
<body>
<?php if (isset($_POST['form_submitted'])): ?>
<?php if (!isset($_POST['agree'])): ?>
<p>You have not accepted our terms of service</p>
<?php else: ?>
<h2>Thank You <?php echo $_POST['firstname']; ?></h2>
<p>You have been registered as <?php echo $_POST['firstname'] . ' ' . $_POST['lastname']; ?> </p>
<p> Go <a href="sample.php" >back</a> to the form</p>
<?php endif; ?>
<?php else: ?>
<h2>Registration Form</h2>
<form action="sample.php" method="POST">
First name: <input type="text" name="firstname"><br>
Last name: <input type="text" name="lastname"><br>
Agree to Terms of Service: <input type="checkbox" name="agree"> <br>
**<input type="hidden" name="form_submitted" value="1"/>**
<input type="submit" value="Submit">
</form>
<?php endif; ?>
</body>
</html>
你的問題很不清楚。嘗試編輯該問題，以便我們確切知道您需要幫助 –
無論您爲什麼使用隱藏輸入，它的位置在'