询问是否确定要提交？ JavaScript的？(Ask if you are sure you

我现在有这一点。

 //other stuff up here - not important
    echo "<td><form action='redeem.php' method='post' id='form'><input type='hidden' name='redeem' value='1' /><input type='hidden' name='id' value='" . $id . "' /><input type='submit' name='Redeem' value='Redeem'></form></td>";
    } else {
    echo "<td><form action='redeem.php' method='post' id='form'><input type='hidden' name='redeem' value='0' /><input type='hidden' name='id' value='" . $id . "' /><input type='submit' name='Un-Redeem' value='Un-Redeem'></form></td>";
//other stuff down here - not important

我想，这样当你按下改变它：
一）“兑现”提交按钮它就会提醒你说：“你确定要兑换？”
二）“取消兑换”提交按钮它就会提醒你说：“你确定要取消兑换？”

我已经尝试了几个人，包括ONCLICK上提交，但没有工作..我相信这是因为我有它在ECHO，我不得不删除从发生停止功能（“）引号。

任何人都知道另一种方式我能做到吗？

Answer 1:

这里是解决方案：

     //other stuff up here - not important
        echo "<td><form action='redeem.php' method='post' id='form'><input type='hidden' name='redeem' value='1' /><input type='hidden' name='id' value='" . $id . "' />
              <input type='submit' name='Redeem' value='Redeem' onclick="return confirm('Are you sure you want to Redeem?')"></form></td>";
        } else {
        echo "<td><form action='redeem.php' method='post' id='form'><input type='hidden' name='redeem' value='0' /><input type='hidden' name='id' value='" . $id . "' />
              <input type='submit' name='Un-Redeem' value='Un-Redeem' onclick="return confirm('Are you sure you want to Un-Redeem?')" ></form></td>";
    //other stuff down here - not important

编辑：已在这里转义字符：

 //other stuff up here - not important
        echo "<td><form action='redeem.php' method='post' id='form'><input type='hidden' name='redeem' value='1' /><input type='hidden' name='id' value='" . $id . "' />
              <input type='submit' name='Redeem' value='Redeem' onclick=\"return confirm('Are you sure you want to Redeem?')\"></form></td>";
        } else {
        echo "<td><form action='redeem.php' method='post' id='form'><input type='hidden' name='redeem' value='0' /><input type='hidden' name='id' value='" . $id . "' />
              <input type='submit' name='Un-Redeem' value='Un-Redeem' onclick=\"return confirm('Are you sure you want to Un-Redeem?')\" ></form></td>";
    //other stuff down here - not important

Answer 2:

您可以使用JavaScript的confirm功能。

if(confirm("Are you sure you want to Redeem?")) {
    // do something
} else {
    // do something
}

你也可以做到这一点的形式，通过添加以下代码到您的表单提交：

onsubmit="return confirm('Are you sure you want to Redeem?');"

如果用户点击“OK”的形式将只能提交。

Answer 3:

使用JavaScript确认功能。如果确认返回false窗体不会提交。

<form action='redeem.php' method='post' id='form' onSubmit="return confirm('Are you sure you want to redeem')">

如果您想要做别的事情，如果用户点击取消，然后你需要创建一个自定义功能：

function my_confirm() {
    if( confirm("Are you sure you want to redeem?") ) {
        return true;
    }
    else {
        // do something 
        return false;
    }
}

而就在表单标签：