source: devel/www/is/wlan.php@ 89

<?php

echo('<table border="1" cellspacing="0" cellpadding="2" style="font-sze: small;">');
exec('iwlist scan', $Output);
echo('<tr><th>ESSID</th><th>Kanál</th><th>Signál</th><th>MAC</th></tr>');
foreach($Output as $Line)
{
  while(strpos($Line, '  ') !== false) $Line = str_replace('  ', ' ', $Line);
  $LineParts = explode(' ', $Line);
  $Item = explode(':', $LineParts[1]);
  if($LineParts[0] != '') echo('<tr><td colspan="4">'.$LineParts[0].'</td></tr>');
  //$Device = $LineParts[0];
  if($Item[0] == 'ESSID') $ESSID = substr($Item[1], 1, -1);
  if($LineParts[2] == 'GHz') $Channel = substr($LineParts[4], 0, -1);
  if($LineParts[2] == 'Signal') 
  { 
    $Item = explode(':', $LineParts[3]);    
    $SignalLevel = $Item[1];
  }
  if($LineParts[1] == 'Cell') 
  {
    echo('<tr><td>'.$ESSID.'</td><td>'.$Channel.'</td><td>'.$SignalLevel.'</td><td>'.$MAC.'</td></tr>');
    $MAC = $LineParts[5];
  }
    
//  foreach($LineParts as $LinePart)
//    echo($LinePart.',');
//  echo('<br>');
}
echo('</table>');

?>