Q:

How to return PHP array value from key? 

I am trying to generate a user's country based on the city selection in a select menu.   I have generated the select menu using an associative array.   I want to print "$city is in $country" but I cannot access the $country properly.   This is what I have:
<? php
$cities = array("Tokyo" => "Japan", "Mexico City" => "Mexico", 
"New York City" => "USA", "Mumbai" => "India", "Seoul" => "Korea",
"Shanghai" => "China", "Lagos" => "Nigeria", "Buenos Aires" => "Argentina", 
"Cairo" => "Egypt", "London" => "England");
? >

<form method="post" action="5.php">
<? php
echo '<select name="city">';

foreach ($cities as $city => $country)
{
echo '<option value="' .  $city . '" >' .  $city . ' </option>';
}

echo '<select>';

? >

<input type="submit" name="submit" value="go" />
</form>
<? php
$city = $_POST["city"];

print ("$city is in $country");
? >

Any ideas?   Thank you. 

A:

You are trying to access the local foreach variable $country out of the foreach loop.  You have to do that inside the loop. 
Or you could just get the country from the cities array like :
$cities[$city];

