PHP没有从上一页的表单中获得任何响应

Question

我有文件"1.p​​hp"和文件"2.php"...

在"1.php"中,有一个HTML表单:

<form action="2.php" method="post">
  <div class="form-group">
    <label for="db_username">Field 1:</label>
    <input type="text" class="form-control" id="db_username">
  </div>
  <div class="form-group">
    <label for="db_password">Field 2:</label>
    <input type="password" class="form-control" id="db_password">
  </div>
  <div class="form-group">
    <label for="db_passphrase">Field 3:</label>
    <input type="text" class="form-control" id="db_passphrase">
  </div>
  <button type="submit" class="btn btn-default">Next</button>
</form>

在"2.php"中,动作必须在PHP中应用..就像:

<?php
// Process of Step "1"
$db_username = $_POST['db_username'];
$db_password = $_POST['db_password'];
$db_passphrase = $_POST['db_passphrase'];

if( !isset($db_username) || !isset($db_password) || !isset($db_passphrase) ) {
    header("Location: 1.php?error=1");
    die();
}
?>

然而..的值$_POST['db_username'],$_POST['db_password']并且$_POST['db_passphrase']是空的...

Answer 1

您需要使用该name属性以便以后访问$_POST数据,如下所示:

<input type="text" class="form-control" id="db_username" name="db_username">