doudeng9425 2012-04-02 05:48
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单击确认框终止php表单操作

We alert user using this javascript, now i want to add this functionality to my html form, which sends the data using the post method to my php form processing page.

Now what i want is to terminate the action if the user presses cancel button, it means all the data which has been sent using the post method should not be sent and the person would not be able to process the form until and unless he/she clicks the OK button. So is it possible? Or it is just some idiot question?

<html>
<head>
<script type="text/javascript">
function show_confirm()
{
var r=confirm("Press a button!");
if (r==true)
  {
  alert("You pressed OK!");
  }
else
  {
  alert("You pressed Cancel!");
  }
}
</script>
</head>
<body>

<input type="button" onclick="show_confirm()" value="Show a confirm box" />

</body>
</html>
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2条回答 默认 最新

  • dqybeh2884 2012-04-02 06:10
    关注

    Call the confirm on form submit, not on button click, and change the button to a submit button:

    <form onsubmit="return show_confirm();">
    <input type="text" name="test" value="test"><br>
    <input type="submit" value="Show a confirm box">
</form>

    Add a return false; if cancel has been clicked:

    function show_confirm() {
    var r=confirm("Press a button!");
    if (r===true) {
        alert("You pressed OK!");
    } else {
        alert("You pressed Cancel!");
        return false;
    }
}

    Also see my example.

    本回答被题主选为最佳回答 , 对您是否有帮助呢?
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