2 dimensional array

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 $val开发者_运维百科ue;
 $city=$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

Try this:

<?php
$cities = array("nagpur","kanpur","nagpur","delhi","kanpur");
$names = array("ankit","atul","aman","amit","manu");

$arr = array();
foreach($cities as $key=>$city) {
    $arr[$city][] = $names[$key];
}
echo "<pre>";
print_r($arr);
?>

Let know how it goes.

You can't expect PHP to guess how to pair those, now can you?

What you actually want to do is:

$final=array(
    "nagpur" => array("munish","imteyaz"),
    "kanpur" => array("ram","shyam"),
    etc.
);

then, if you also need the separate arrays, you build those iterating the $final one, not the other way around.

complete code:

$final=array(
    "nagpur" => array("munish","imteyaz"),
    "kanpur" => array("ram","shyam"),
);

$cities=array();
$names=array();
foreach ($final as $city => $nnn) {
    array_push($cities,$city);
    foreach ($nnn as $nn) {
        array_push($names,$nn);
    }
}