如何在我的表單中處理兩個提交按鈕

Question

我想在我的表單中創建兩個提交按鈕

<form id="form-input-wrapper" action='test.php'>

//form items..
//form items..

    <button class="btn btn-primary" type="submit" value="old">first button.</button>

    <button class="btn btn-primary" type="submit" value="new">second button</button>
</form>

我的問題是如何區分用戶在test.php頁面中點擊的按鈕？

Answer 1

您需要將name屬性添加到按鈕

<button class="btn btn-primary" type="submit" name="old" value="old">first button.</button>

<button class="btn btn-primary" type="submit" name="new" value="new">second button</button>

要使用的PHP代碼如下所示：

if ($_SERVER['REQUEST_METHOD'] === 'POST') {
    //something posted

    if (isset($_POST['old'])) {
        //old
    } elseif (isset($_POST['new']){
        //new
    }
}

相關問題： 如何判斷在PHP表單中單擊了哪個按鈕？

Answer 2

使用按鈕名稱標簽並在php中檢查它們：

<button name="subject1" type="submit" value="HTML">HTML</button>
<button name="subject2" type="submit" value="CSS">CSS</button>

在PHP中：

<?php
  if ($_SERVER['REQUEST_METHOD'] === 'POST') {
     if ( isset($_POST['subject1']) )   {
       // first button is clicked

     } elseif ( isset($_POST['subject2']) )   {
        //second button is clicked

     }
  }
?>