Question

我有一个隐蔽的领域,我试图打消用户的解决方案。然后,处理工作结束时,通过实验室检索屏幕。不幸的是,我对javascript的理解非常有限。这里是我所拥有的。我确实希望得到任何帮助。

<head>
    <script type="text/javascript">
        function xy(){
            document.write(screen.width + "x" + screen.height);
            document.getElementById( xy ).value;
            }           
    </script>
</head>




<form action="" method=post >

    //other fields here

    <input type="hidden" name="xy" id="xy" value=""/>
    <input type=submit name="button" value="button" /> 
</form>

当我看一看页源代码时,我是否应该看到“1366x768”等值? 现在,在加工方面,我要向营地提供类似信息。

if(isset($_POST[ xy ]) && (!empty($_POST[ xy ])){
 $blah = $_POST[ xy ];
 //sanatize $blah;
    }

Answer 1

你们可以使用

<script type="text/javascript">
    function setResolution()
    {
        document.getElementById( xy ).value = screen.width + "x" + screen.height;
    }
</script>

然后,在提交时,确保履行这一职能。

<input type="submit" name="button" value="button" onclick="setResolution()" />

Answer 2

用途

function xy(){
    document.getElementById( xy ).value = screen.width + "x" + screen.height;

}

and 用途 the script tag or execute the function after rendering of the form else the element would not be found

EDITED: 增加

Answer 3

ulliw,

您不称职,这样你就拿不到任何东西。

如果你改变这种状况,即为你工作:

<head> 
<script type="text/javascript"> 
        document.write(screen.width + "x" + screen.height); //this will write on the html page 
        document.getElementById( xy ).value=screen.width + "x" + screen.height; // this will put the resolution in your form s hidden field
</script>

友情链接