douka19950505 2016-07-22 08:42
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POST时显示div元素的php

I need to show the progress bar when I click the button submit. Below is the code, when I click the button the console is printing the message but, the div element converting_prog is not showing.

What wrong with below code?

<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"/>
        <meta charset="utf-8">
        <meta name="viewport" content="width=device-width, initial-scale=1">
        <link rel="stylesheet" href="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css">
        <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
        <script src="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>
        <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.0/jquery.js" type="text/javascript"></script>
        <?php
            //process the forms and upload the files
            if ($_POST) {
                //specify folder for file upload
                $user = $_GET["user"];
                ?>
                <script>
                    console.log("posting...");
                </script>
                <script type="text/javascript">document.getElementById('converting_prog').style.display = 'block';</script>
                <?php
            }
        ?>
    </head>
    <body>
        <div id="outPopUp">
            <form action="" method="post" enctype="multipart/form-data" name="form1" id="form1">
                <input class="btn" name="submit" type="submit" id="submit" value="Submit"/>
            </form>
            <div id="converting_prog" class="progress" style="display:none; margin-right:20px;margin-left:20px;margin-top:20px;width:auto">
                <div class="progress-bar progress-bar-striped active" role="progressbar" aria-valuenow="40" aria-valuemin="0" aria-valuemax="100" style="width:100%">
                    Converting %
                </div>
            </div>
        </div>
    </body>
</html>
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4条回答

  • douling0053 2016-07-22 08:45
    关注

    When it runs, the DOM hasn't loaded yet. Try moving the whole PHP if block to the end of the page, so that the JS can run later.

    Or you could wrap that script in a window.onload = function(){} handler.

    本回答被题主选为最佳回答 , 对您是否有帮助呢?
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