title: Get lat/lon from google maps url ftid (hex)
body: <p>When using android google maps app share button for a location, it just return a url as intent to other applications like this one:</p>
  
  <pre>https: // goo. gl / maps/tkNXzF2krmR2</pre>
  
  <p>this is a google short url which is translatable to long url (using goole short url api) to something like this:</p>
  
  <pre>http://maps.google.com/?q=Tehran+Province,+Tehran,+Banafsheh+3&ftid=0x3f8dfd04d309f925:0x2867166b05b0bfe6&hl=en&gl=us&shorturl=1
  </pre>
  
  <p>As is clear this url have no pure latitude and longitude values. but it seems that values is behind of ftid parameter in url. which is separated with ":" character.
  <p>please help me to extract latitude and longitude values from this hex like format<p>
  I'm using PHP language but what others can be help too.
  i need a function like this one: (this is not work):</p>
  
  <pre>
  
      function hextolatlon($hex){
              // Assume hex is a value like 0x1446041F or 0x447D1100
              // Convert to a signed integer
              $h=$hex&0xFF;
              $h=($h>8)&0xFF);
              $h=($h>16)&0xFF);
              $h=($h>24)&0xFF);
              $negative=($h>>31)!=0; // Get the sign
              if($negative){
                  $h=~$h;
                  $h=$h&0x7FFFFFFF;
                  $h++;
              }
              // Convert to degrees and minutes
              $degrees=floor($h/10000000);
              $minutes=$h%10000000;
              // Convert to full degrees
              $degrees+=($minutes/100000.0) / 60.0;
              if($negative)$degrees=-$degrees;
              return $degrees;
          }
  
  </pre>
  
  <p>to convert 0x3f8dfd04d309f925 to something like 35.74388.
  many thanks</p>