Getting the screen resolution using PHP

2楼-- · 2018-12-31 10:34

The easiest way is:

$width = "<script>var windowWidth = screen.width; document.writeln(windowWidth); </script>";
$height = "<script>var windowHeight = screen.height; document.writeln(windowHeight); </script>"; 

echo 'This screen is : '.$width.' x '.$height;

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只若初见

3楼-- · 2018-12-31 10:35

In PHP there is no standard way to get this information. However, it is possible if you are using a 3rd party solution. 51Degrees device detector for PHP has the properties you need:

Gives you Width and Height of user's screen in pixels. In order to use these properties you need to download the detector from sourceforge. Then you need to include the following 2 lines in your file/files where it's necessary to detect screen height and width:

<?php
require_once 'path/to/core/51Degrees.php';
require_once 'path/to/core/51Degrees_usage.php';
?>

Where path/to/core is path to 'Core' directory which you downloaded from sourceforge. Finally, to use the properties:

<?php
echo $_51d['ScreenPixelsHeight']; //Output screen height.
echo $_51d['ScreenPixelsWidth']; //Output screen width.
?>

Keep in mind these variables can contain 'Unknown' value some times, when the device could not be identified.

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旧人旧事旧时光

4楼-- · 2018-12-31 10:36

This is a very simple process. Yes, you cannot get the width and height in PHP. It is true that JQuery can provide the screen's width and height. First go to https://github.com/carhartl/jquery-cookie and get jquery.cookie.js. Here is example using php to get the screen width and height:

    <!DOCTYPE html>
    <html lang="en">
    <head>
        <meta charset="UTF-8">
        <title>Test</title>
        <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
        <script src="https://ajax.googleapis.com/ajax/libs/jqueryui/1.12.1/jquery-ui.min.js"></script>
        <script src="js/jquery.cookie.js"></script>
        <script type=text/javascript>
            function setScreenHWCookie() {
                $.cookie('sw',screen.width);
                $.cookie('sh',screen.height);
                return true;
            }
            setScreenHWCookie();
        </script>
    </head>
    <body>
        <h1>Using jquery.cookie.js to store screen height and width</h1>
    <?php
         if(isset($_COOKIE['sw'])) { echo "Screen width: ".$_COOKIE['sw']."<br/>";}
         if(isset($_COOKIE['sh'])) { echo "Screen height: ".$_COOKIE['sh']."<br/>";}
    ?>
    </body>
    </html>

I have a test that you can execute: http://rw-wrd.net/test.php

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不再属于我。

5楼-- · 2018-12-31 10:37

I found using CSS inside my html inside my php did the trick for me.

<?php             
    echo '<h2 media="screen and (max-width: 480px)">'; 
    echo 'My headline';
    echo '</h2>'; 

    echo '<h1 media="screen and (min-width: 481px)">'; 
    echo 'My headline';
    echo '</h1>'; 

    ?>

This will output a smaller sized headline if the screen is 480px or less. So no need to pass any vars using JS or similar.

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不流泪的眼

6楼-- · 2018-12-31 10:37

solution: make scalable web design ... ( our should i say proper web design) formating should be done client side and i did wish the info would be passed down to server but the info is still usefull ( how many object per rows kind of deal ) but still web design should be fluid thus each row elements should not be put into tables unless its an actual table ( and the data will scale to it's individual cells) if you use a div you can stack each elements next to each other and your window should "break" the row at the proper spot. ( just need proper css)

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还给你的自由

7楼-- · 2018-12-31 10:38

JS:

$.ajax({
    url: "ajax.php",
    type: "POST",
    data: "width=" + $("body").width(),
    success: function(msg) {

        return true;
    }
});

ajax.php

if(!empty($_POST['width']))
    $width = (int)$_POST['width'];

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Getting the screen resolution using PHP

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