JavaScript onClick href

Question

使用<a>標記，我可以輸入：

<a href="include/sendemail.php?id_user=<?= $_GET['id_user'];?>" onclick="return confirm('Are you sure want to send an email?');" >Send Email</a>

以及如何將該代碼應用於button：

<input type="button" onclick="return confirm('Are you sure want to send an email?');"  value="Send Email" >

Answer 1

如果您只需要一點點改動就可以實現自己的目標，請嘗試以下操作：

<input type="button" onclick="if(confirm('Are you sure want to send an email?')) { document.location.href = 'include/sendemail.php?id_user='; } " value="Send Email" />

Answer 2

<input type="button" onclick="return myFunc();"  value="Send Email" >

<script>

function myFunc()
{
 var flag = confirm('Are you sure want to send an email?');
 if(flag)
  document.location.href = "include/sendemail.php?id_user=<?= $_GET['id_user'];?>" ;
 else
   return false;

}

Answer 3

按鈕不是超鏈接。

要使按鈕導航到其他頁面，您可以輸入location = 'URL'; 在click處理程序中。

Answer 4

<form action="include/sendemail.php" method="GET">
<input type="hidden" name="id_user" value="<?php echo intval($_GET['id_user']); ?>" />
<input type="button" onclick="return confirm('Are you sure want to send an email?');"  value="Send Email" />
</form>

您也可以使用<form>標記的onsubmit 。