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 PHP detect browser window size, $_Get['width'] ??

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TSCodeBasic
post Apr 30 2009, 11:22 AM, updated 17y ago

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hi..i wan to ask how to use PHP to check the browser window size ? if let say, my code:

<?
$myWidth = '<script> document.write(window.innerWidth); </script>';

echo $myWidth;

if ($myWidth < 1008) { //when i resize the browser window to 1024x768px, the echo $myWidth is 1008

$setWidth = 550;

echo '<div id="Panorama" style="width:'.$setWidth.'px; height:130px;overflow:hidden; background-color: transparent; margin-top:5; padding: 20px; margin-left: 0px;">';

} else { //when i resize the browser window to 1280x800px, the echo $myWidth is 1264

$setWidth = 750;

echo '<div id="Panorama" style="width:'.$setWidth.'px; height:130px;overflow:hidden; background-color: transparent; margin-top:5; padding: 20px; margin-left: 0px;">';

}?>

My problem is : No matter how i resize the browser window size, it always go to if ($myWidth < 1008){}...i cant get the $setWidth correctly, anything wrong in my code?

This post has been edited by CodeBasic: Apr 30 2009, 11:24 AM
SUSlovely_named
post Apr 30 2009, 11:54 AM

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php has his hands clean right after the document is sent off the server.

javascript is only executed when the document is sent and is running on the client.

it's as if you did:

CODE
if ('<script> document.write(window.innerWidth); </script>' < 1008)


which i think will probably yield true most of the time. don't have php now but i think the string evaluates to 0.
snow
post Apr 30 2009, 12:21 PM

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You have to either do the if else completely in javascript or use javascript to pass the width to php.

Method 1:

<html>
<body>
<script type="text/javascript">
var w = 0;
if (window.innerWidth) w = window.innerWidth;
else if (document.all) w = document.body.clientWidth;
if (w < 1008) { document.write("less than 1008"); }
else { document.write("more than 1008"); }
</script>
</body>
</html>
TSCodeBasic
post Apr 30 2009, 04:45 PM

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i still not understand how to write
bubbliblu
post Apr 30 2009, 05:40 PM

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you need something to trigger the javascript like a button click or whatever events...
ExpZero
post May 2 2009, 12:33 AM

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From: Kuala Lumpur
QUOTE(CodeBasic @ Apr 30 2009, 11:22 AM)
hi..i wan to ask how to use PHP to check the browser window size ? if let say, my code:

<?
  $myWidth = '<script> document.write(window.innerWidth); </script>';

  echo $myWidth;
     
  if ($myWidth < 1008) { //when i resize the browser window to 1024x768px, the echo $myWidth is 1008
   
    $setWidth = 550;
   
  echo '<div id="Panorama" style="width:'.$setWidth.'px; height:130px;overflow:hidden; background-color: transparent; margin-top:5; padding: 20px; margin-left: 0px;">';
 
  } else { //when i resize the browser window to 1280x800px, the echo $myWidth is 1264
   
  $setWidth = 750;
 
  echo '<div id="Panorama" style="width:'.$setWidth.'px; height:130px;overflow:hidden; background-color: transparent; margin-top:5; padding: 20px; margin-left: 0px;">';   
 
  }?>

My problem is : No matter how i resize the browser window size, it always go to  if ($myWidth < 1008){}...i cant get the $setWidth correctly, anything wrong in my code?
*
QUOTE(CodeBasic @ Apr 30 2009, 04:45 PM)
i still not understand how to write
*
Your $myWidth is a string(which is '<script> document.write(window.innerWidth); </script>') which you cannot compare it with integer. If you want to get the window resolution, you need to do it in javascript then resize the "panorama" in javascript.

EG:
CODE
<script type="text/javascript">
var wwidth = window.innerWidth;
var setwidth;
if(wwidth < 1008)
{
setwidth = 550;
}
else
{
setwidth = 750;
}
document.getElementById('panorama').style.width = setwidth;
</script>
<div id="Panorama" style="height:130px;overflow:hidden; background-color: transparent; margin-top:5; padding: 20px; margin-left: 0px;">


PLEASE TAKE NOTE THAT I NEVER TEST THIS SCRIPT, but it should work.
TSCodeBasic
post May 4 2009, 11:10 AM

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But i still face with the problem on doing that cos i just use javascript function to handle scroll left and right...and i used php function to display my image...

public static function DisplayForum($o) {
$forums = self::GetWholeForums();
foreach ($forums as $f) {

$base = $o->forum->id == $f->id ? 'fheader' : 'option';

echo '<td width="25px;" align="center">'
.'<a href="viewforum.php?fid='.$f->id.'">'
.'<img src="/img/forum/'.$base.$f->id.'.gif">'
.'</a>'
.'</td>';

}
}

so what can i do now?

Another question is:

http://i268.photobucket.com/albums/jj20/im...lee1983/ask.jpg
http://i268.photobucket.com/albums/jj20/im...ee1983/ask2.jpg
http://i268.photobucket.com/albums/jj20/im...ee1983/ask3.jpg
http://i268.photobucket.com/albums/jj20/im...ee1983/ask4.jpg

How can make the image displayed in center or scroll left a bit so that can see the image display? Bcos i don wan ppl to scroll right again after they click the image

This post has been edited by CodeBasic: May 4 2009, 11:11 AM
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