we have these arrays....

$cities = array("nagpur","kanpur","delhi","chd","Noida","mumbai","nagpur");
$names = array("munish","imteyaz","ram","shyam","ankit","Rahul","mohan");

now i want a 2 dimensional array with name of city as key and all the corresponding names as its values.

<?php
$cities = array("nagpur","kanpur","nagpur","delhi","kanpur");
$names = array("ankit","atul","aman","amit","manu");
foreach ($cities as $i => $value) {
 echo "\n";

 echo $value;
 $city=$value;
 $k=0;
 foreach ($cities as $ii => $m) {
  If($city==$m)
 {
  echo$names[$ii] ;
  $final[$i][$k]=$names[$ii];


  $arr = array($city => array($k =>$names[$ii] ));
   $k++;
 }

 }
 echo"\n<tr></tr>";
}

wat i tried is this.but it doesnt work.help me