Getting the screen resolution using PHP-第2页回答

2楼-- · 2018-12-31 10:38

You can set window width in cookies using JS in front end and you can get it in PHP:

<script type="text/javascript">
   document.cookie = 'window_width='+window.innerWidth+'; expires=Fri, 3 Aug 2901 20:47:11 UTC; path=/';
</script>

<?PHP
    $_COOKIE['window_width'];
?>

0人赞添加讨论(0) 举报

伤终究还是伤i

3楼-- · 2018-12-31 10:39

You can try RESS (RESponsive design + Server side components), see this tutorial:

http://www.lukew.com/ff/entry.asp?1392

0人赞添加讨论(0) 举报

与君花间醉酒

4楼-- · 2018-12-31 10:41

<script type="text/javascript">

if(screen.width <= 699){
    <?php $screen = 'mobile';?>
}else{
    <?php $screen = 'default';?>
}

</script>

<?php echo $screen; ?>

0人赞添加讨论(0) 举报

与君花间醉酒

5楼-- · 2018-12-31 10:43

This can be done easily using cookies. This method allows the page to check the stored cookie values against the screen height and width (or browser view port height and width values), and if they are different it will reset the cookie and reload the page. The code needs to allow for user preferences. If persistant cookies are turned off, use a session cookie. If that doesn't work you have to go with a default setting.

Javascript: Check if height & width cookie set
Javascript: If set, check if screen.height & screen.width (or whatever you want) matches the current value of the cookie
Javascript: If cookie not set or it does not match the current value, then: a. Javascript: create persistent or session cookie named (e.g.) 'shw' to value of current screen.height & screen.width.
b. Javascript: redirect to SELF using window.location.reload(). When it reloads, it will skip the step 3.
PHP: $_COOKIE['shw'] contains values.
Continue with PHP

E.g., I am using some common cookie functions found on the web. Make sure setCookie returns the correct values. I put this code immediately after the head tag. Obviously the function should be in a a source file.

<head>
<script src="/include/cookielib.js"></script>
<script type=text/javascript>
function setScreenHWCookie() {
    // Function to set persistant (default) or session cookie with screen ht & width
    // Returns true if cookie matches screen ht & width or if valid cookie created
    // Returns false if cannot create a cookies.
    var ok  = getCookie( "shw");
    var shw_value = screen.height+"px:"+screen.width+"px";
    if ( ! ok || ok != shw_value ) {
        var expires = 7 // days
        var ok = setCookie( "shw", shw_value, expires)
        if ( ok == "" ) {
            // not possible to set persistent cookie
            expires = 0
            ok = setCookie( "shw", shw_value, expires)
            if ( ok == "" ) return false // not possible to set session cookie
        }
        window.location.reload();
    }
    return true;
}
setScreenHWCookie();
</script>
....
<?php
if( isset($_COOKIE["shw"])) {
    $hw_values = $_COOKIE["shw"];
}

0人赞添加讨论(0) 举报

残风、尘缘若梦

6楼-- · 2018-12-31 10:46

The only way is to use javascript, then get the javascript to post to it to your php(if you really need there res server side). This will however completly fall flat on its face, if they turn javascript off.

0人赞添加讨论(0) 举报

裙下三千臣

7楼-- · 2018-12-31 10:47

Directly with PHP is not possible but...

I write this simple code to save screen resolution on a PHP session to use on a image gallery.

<?php
session_start();
if(isset($_SESSION['screen_width']) AND isset($_SESSION['screen_height'])){
    echo 'User resolution: ' . $_SESSION['screen_width'] . 'x' . $_SESSION['screen_height'];
} else if(isset($_REQUEST['width']) AND isset($_REQUEST['height'])) {
    $_SESSION['screen_width'] = $_REQUEST['width'];
    $_SESSION['screen_height'] = $_REQUEST['height'];
    header('Location: ' . $_SERVER['PHP_SELF']);
} else {
    echo '<script type="text/javascript">window.location = "' . $_SERVER['PHP_SELF'] . '?width="+screen.width+"&height="+screen.height;</script>';
}
?>

0人赞添加讨论(0) 举报

Getting the screen resolution using PHP

采纳回答

编辑标签

举报内容

检举类型

检举原因

检举说明(必填)

打开微信“扫一扫”，打开网页后点击屏幕右上角分享按钮

付费偷看金额在0.1-10元之间