如何處理兩個在我的形式提交按鈕

Question

我試圖創建兩個在我的形式提交按鈕

<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distinquish哪個按鈕在我test.php頁面的用戶點擊？

Answer 1

您需要的name屬性添加到您的按鈕

<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> 

的使用php代碼如下：

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

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

相關的問題： How can I tell which button was clicked in a PHP form submit?

Answer 2

使用按鈕名稱標籤，並檢查他們在PHP中：

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

而且在PHP中：

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

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

    } 
    } 
?>