RPG PHP Menu Script

<?php

//Entrada variables

$ante = $_GET['ante'];
$zona = $_GET['zona'];
$img = $_GET['img'];
$dial = $_GET['dial'];
$lvl = $_GET['lvl'];
$exp = $_GET['exp'];
$next = $_GET['next'];
$key = $_GET['key'];

// Cambiar estado llaves

if ( $key == "" ){
}
else {

$camkey = "llaves/".$key.".txt";

$ar=fopen("$camkey","w");
fputs($ar,"1");
fclose($ar);
}

// Inventario
$llave = file_get_contents("llaves/1.txt");
    if ( $llave == "0"){
        $llave1 = "";
    }
    elseif ( $llave == "1"){
        $llave1 = "llave1";
    }
$llave = file_get_contents("llaves/2.txt");
    if ( $llave == "0"){
        $llave2 = "";
    }
    elseif ( $llave == "1"){
        $llave2 = "llave2";
    }
$llave = file_get_contents("llaves/3.txt");
    if ( $llave == "0"){
        $llave3 = "";
    }
    elseif ( $llave == "1"){
        $llave3 = "llave3";
    }
$llave = file_get_contents("llaves/4.txt");
    if ( $llave == "0"){
        $llave4 = "";
    }
    elseif ( $llave == "1"){
        $llave4 = "llave4";
    }
$llave = file_get_contents("llaves/5.txt");
    if ( $llave == "0"){
        $llave5 = "";
    }
    elseif ( $llave == "1"){
        $llave5 = "llave5";
    }
?>

<style type="text/css">
body
{
background-color:black;
}
#nmapa{
color:white;
}
#imagen{
background-image:url('<?php echo $zona; ?>/<?php echo $img; ?>');
background-size: contain;
background-repeat: no-repeat;
background-position: center center;
}
#tamapa{
border-spacing: 0;
border-style: solid;
border-width: 1px;
border-color: white;
overflow: hidden;
}
#champ{
background-image:url('girl.png');
background-size: contain;
background-repeat: no-repeat;
background-position: center center;
}
#aqui{
background-image:url('aqui.png');
background-size: contain;
background-repeat: no-repeat;
background-position: center center;
}
#visitado{
background-image:url('visitado.png');
background-size: contain;
background-repeat: no-repeat;
background-position: center center;
}
#llave1{
background-image:url('llaves/1.png');
background-size: contain;
background-repeat: no-repeat;
background-position: center center;
}
#llave2{
background-image:url('llaves/2.png');
background-size: contain;
background-repeat: no-repeat;
background-position: center center;
}
#llave3{
background-image:url('llaves/3.png');
background-size: contain;
background-repeat: no-repeat;
background-position: center center;
}
#llave4{
background-image:url('llaves/4.gif');
background-size: contain;
background-repeat: no-repeat;
background-position: center center;
}
#llave5{
background-image:url('llaves/5.png');
background-size: contain;
background-repeat: no-repeat;
background-position: center center;
}
</style>

<table border="0" width=100% height=100%>
  <tr >
    <td id="imagen" rowspan="3" colspan="3" height="280px">
    </td>
    <td width="25%" height="20%" valign="top">
        <iframe src='mapa.php?zona=<?php echo $zona; ?>&ante=<?php echo $ante; ?>' frameborder="0" style="width:100%;height:100%" scrolling="no"></iframe>
    </td>
  </tr>
  <tr>
    <td rowspan="2" >
        <center><table border=1 width=300 height=130>
            <tr height=65>
                <td id="champ" style="background-color:#08088A;" width=65></td>
                <td style="background-color:#08088A;">
                    <div style="color:#F7819F;">Princesa Esa</div><div style="color:#F7819F;"><b>LVL:<?php echo $lvl; ?></b></div>
                </td>
            </tr>
            <tr height=65>
                <td colspan="2" style="background-color:#08088A;">
                    <div><b style="float:left;color:#F7819F;">Exp. Points : <?php echo $exp; ?></b></div><div style="float:right;color:#F7819F;"><b>For Lev UP : <?php echo $next; ?></b></div>
                </td>
            </tr>
        </table></center>
    </td>
  </tr>
  <tr>

  </tr>
  <tr>
    <td rowspan="2" colspan="3"><iframe src='<?php echo $zona; ?>/<?php echo $dial; ?>.php' frameborder="0" style="width:100%;height:100%" scrolling="no"></iframe></td>
    <td>
        <center><p id="nmapa">Inventario</p></center>
        <center><table border="1" >
            <tr>
                <td width=32 height=32 id=<?php echo $llave1; ?>></td>
                <td width=32 height=32 id=<?php echo $llave2; ?>></td>
                <td width=32 height=32 id=<?php echo $llave3; ?>></td>
            </tr>
            <tr>
                <td width=32 height=32 id=<?php echo $llave4; ?>></td>
                <td width=32 height=32 id=<?php echo $llave5; ?>></td>
                <td width=32 height=32></td>
            </tr>
            <tr>
                <td width=32 height=32></td>
                <td width=32 height=32></td>
                <td width=32 height=32></td>
            </tr>
            <tr>
                <td width=32 height=32></td>
                <td width=32 height=32></td>
                <td width=32 height=32></td>
            </tr>
        </table></center>
    </td>
  </tr>
  <tr>
    <td></td>
  </tr>
</table>