title: Assign javascript value to php variable
body: <p>I'm trying to check screen width and assign it to a php variable to do some if else statements. This is what I got. </p>
  
  <pre><code>&lt;script&gt;
      var mobileFormWidthCheck = $(window).width();
      var mobileFormReady;
      if(mobileFormWidthCheck &lt; 767){
          mobileFormReady = 22;
      }
      else{
          mobileFormReady = 55;  
      }
  
  &lt;/script&gt;
  
      &lt;?php   
          $widthChecked = "&lt;script&gt;document.write(mobileFormReady);&lt;/script&gt;";
          echo $widthChecked;
      ?&gt;
  </code></pre>
  
  <p>This works perfectly. But when I try to echo something based on the <code>mobileFormReady</code> value, it doesnt echo. </p>
  
  <p>This is what im trying to get to work.</p>
  
  <pre><code>$widthChecked = "&lt;script&gt;document.write(mobileFormReady);&lt;/script&gt;";
  if($widthChecked == "22"){
    echo 'this page is under 767 pixels';
  }
  else if($widthChecked == "55"){
    echo 'this page is OVER 767 pixels';
  }
  else{
    echo 'NOT WORKING YET';
  }
  </code></pre>
  
  <p>I think its a string integer issue. But I cant seem to figure it out. Can you guys please help me? Thanks a lot.</p>