$GET[‘] from links

i am building a website but not from forms or selects or anything i need to pass avariable or info to another page which i can do that but what i am trying to do consists of a include page that has way too many elseif’s i am trying to find a way to consolidate it so the code isnt messy like that
here is the piece of code that i have

<?if($_GET[‘year’]==”1960″){

include(“make.php”);
}elseif($_GET[‘search’]==”1961″){

include(“make.php”);
}elseif($_GET[‘search’]==”1962″){

include(“make.php”);
}elseif($_GET[‘search’]==”1963″){

include(“make.php”);
}elseif($_GET[‘search’]==”1964″){

include(“make.php”);
}elseif($_GET[‘search’]==”1965″){

include(“make.php”);
} …etc

here is what i am trying to do or going about it wrong

<?if($_GET[‘year’]==null){?>
<table>
<td><center><h2>Please Select your Year</h2></center></td>
</table>
<table>
<tr><td><a href=”search.php?search=year&amp;year=1960″><h4>1960</h4></a>
<a href=”search.php?search=1961″><h4>1961</h4></a>
<a href=”search.php?search=1962″><h4>1962</h4></a>
<a href=”search.php?search=1963″><h4>1963</h4></a>
<a href=”search.php?search=1964″><h4>1964</h4></a></td>
..etc

which actually works but when i click the year you see multiple years and thats where the too many elseif’s are and i don want

this is the piece of code that isnt working for the selection

<?}elseif($_GET[‘year’]!=null){?>

<table>

<td><center><h2>Please Select Your Make</h2></center></td>
</table>
<table>
<tr><td><a href=”search.php?search=<?echo$_GET[‘search’]?>&amp;year=<?echo$_GET[‘year’];?>&amp;make=Buick”><h4>Buick</h4></a>
<a href=”search.php?search=Cadilac”><h4>Cadilac</h4></a>
<a href=”search.php?search=Chevrolet”><h4>Chevrolet</h4></a>

<a href=”search.php?search=Chevytruck”><h4>Chevy Truck</h4></a></td>
<td><a href=”search.php?search=Chrysler”><h4>Chrysler</h4></a>
..etc

i just dont know what to put into the value of $_GET[”] to show what the users have selected instead of that huge code of too many elseif’s

thank you very much in advanced

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