我有一个名称列表和一些带有产品名称的按钮。当单击其中一个按钮时,列表信息将发送到PHP脚本,但是我无法点击“提交”按钮来发送其值。怎么做?我将代码简化为以下内容:
发送页面:
<html> <form action="buy.php" method="post"> <select name="name"> <option>John</option> <option>Henry</option> <select> <input id='submit' type='submit' name = 'Tea' value = 'Tea'> <input id='submit' type='submit' name = 'Coffee' value = 'Coffee'> </form> </html>
接收页面:buy.php
<?php $name = $_POST['name']; $purchase = $_POST['submit']; //here some database magic happens ?>
除了发送提交按钮值外,其他所有东西都可以正常工作。
按钮名称未提交,因此$_POST['submit']未设置php 值。如in isset($_POST['submit'])评估为false。
$_POST['submit']
isset($_POST['submit'])
<html> <form action="" method="post"> <input type="hidden" name="action" value="submit" /> <select name="name"> <option>John</option> <option>Henry</option> <select> <!-- make sure all html elements that have an ID are unique and name the buttons submit --> <input id="tea-submit" type="submit" name="submit" value="Tea"> <input id="coffee-submit" type="submit" name="submit" value="Coffee"> </form> </html> <?php if (isset($_POST['action'])) { echo '<br />The ' . $_POST['submit'] . ' submit button was pressed<br />'; } ?>