php - 表单提交前确认

Question

我已经搜索过答案，但找不到!

我有一个简单的表格，

<form action="adminprocess.php" method="POST">
    <input type="submit" name="completeYes" value="Complete Transaction" />
</form>

在处理表单之前，我如何调整它以确认？

我尝试了 onclick，但无法正常工作。

有什么想法吗？

更新 - 我现在拥有的。

<script type="text/javascript">
var el = document.getElementById('myCoolForm');

el.addEventListener('submit', function(){
return confirm('Are you sure you want to submit this form?');
}, false);
</script>

<form action="adminprocess.php" method="POST" id="myCoolForm">
     <input type="submit" name="completeYes" value="Complete Transaction" />
</form>

Answer 1

HTML:

<form action="adminprocess.php" method="POST" id="myCoolForm">
    <input type="submit" name="completeYes" value="Complete Transaction" />
</form>

JavaScript:

var el = document.getElementById('myCoolForm');

el.addEventListener('submit', function(){
    return confirm('Are you sure you want to submit this form?');
}, false);

编辑:你总是可以像这样使用内联 JS 代码:

<form action="adminprocess.php" method="POST" onsubmit="return confirm('Are you sure you want to submit this form?');">
    <input type="submit" name="completeYes" value="Complete Transaction" />
</form>