如何用Javascript从submit.php获得结果

How to get the result from submit.php with Javascript?

本文关键字：结果 php submit 何用 Javascript      更新时间：2023-09-26

你好，我有这些HTML表单:

<head>
<script src="http://code.jquery.com/jquery-1.9.1.js"></script>
<script type="text/javascript" src="./comments.js"></script>
</head>
<div id="addCommentContainer">
<form class="add-comment-form" id="addCommentForm3" method="post" action="">
<input type="hidden" value="3" name="comentonpost" id="comentonpost" />
<textarea class="commentinput" name="body" id="body" cols="20" rows="5"></textarea>
<input type="button" class="add-comment-submit" value="Submit" />
</form>
</div>
<div id="addCommentContainer">
<form class="add-comment-form" id="addCommentForm3" method="post" action="">
<input type="hidden" value="3" name="comentonpost" id="comentonpost" />
<textarea class="commentinput" name="body" id="body" cols="20" rows="5"></textarea>
<input type="button" class="add-comment-submit" value="Submit" />
</form>
</div>



这是我的JS:

     $(document).ready(function () {
// $(".add-comment-submit") selects all elements with the class "add-comment-submit", so the "submit" buttons
// .on will handle event binding for the click event on any of those buttons
$(".add-comment-submit").on("click", function (e) {
    e.preventDefault();
    // 'this' is the element that fired the event, so the submit button
    var submit = $(this);
    // check if the submit button has the "working" class added. this will tell us that someone already clicked it
    // and we shouldn't continue
    if (submit.hasClass("working")) return false;
    // add "working" class to the submit button to prevent double click
    submit.addClass("working");
    submit.val("Working...");
    /* Sending the form fileds to submit.php: */
    // do the post, and on callback (simulated with setTimeout) set everythign back
    $.post('submit.php',$(this).serialize(),function(msg){
    // simulate post 
    setTimeout(function () {   
        submit.removeClass("working");
        submit.val("Submit");
        //$(msg.html).hide().insertBefore(submit.parent()).slideDown();
        // simulate getting results back from server
        $("<div>Here are some results or something</div>").hide().insertBefore(submit.parent($(".addCommentContainer"))).slideDown();
    }, 1000);
    });
});
});

在这个JS中，在按下SUBMIT按钮后，每个表单都会出现"Here are some results or something"的消息。


<?PHP 
$message = "Hello world";
echo $message;
?>



我的问题是-我如何使JS打印$message提交而不是"这里有一些结果或一些东西"?

你能告诉我我要改变我的剧本，所以它会工作吗?提前感谢!

文档明确指出，回调中的第一个参数是来自服务器的响应。

$.post('submit.php',$(this).serialize(),function(msg){
    // simulate post 
    setTimeout(function () {   
        submit.removeClass("working");
        submit.val("Submit");
        //$(msg.html).hide().insertBefore(submit.parent()).slideDown();
        // simulate getting results back from server
        $("<div>" + msg +"</div>").hide().insertBefore(submit.parent($(".addCommentContainer"))).slideDown();
    }, 1000);
    });
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