Select Option from mysql database

For making select options from mysql database, we make table with name "countries" in mysql database and fill some names as given blow.

id country
1 Afghanistan
2 Albanie
3 Algérie
4 Bahamas
5 Bahreïn
6 Bangladesh
7 Canada
8 Chili
9 India
10 USA
After making table, we are going to make function, which returns an array with id and countries from mysql table;
function getCountries(){
{ //connection is opened
mysql_select_db($db,$link) or die("could not select database".mysql_error());
$query="SELECT * FROM countries";
 { //otherwise gives error
  echo mysql_error();
return $items;
//Our next step is making HTML form, So make form as given.

<form name="form1" action="simple_fom_result.php" method="post"> <table> <tr><td>First Name</td><td><input type="text" name="first_name" id="first_name" /></td></tr> <tr><td>Last Name</td><td><input type="text" name="last_name" id="last_name" /></td></tr> <tr><td>Gender </td> <td> <input type="radio" name="gender" id="gernder-1" value="male" checked="checked" /> Male <input type="radio" name="gender" id="gernder-2" value="female" /> Female
</td></tr> <tr><td>Country </td><td> <select name="country" id="country" > <?php $options=getCountries(); foreach($options as $key=>$val){ ?> <option value="<?php echo $key ?>"><?php echo $val?></option> <?php } ?> </select> </td></tr> <tr><td>Your Hobbies </td><td> <textarea name="hobbies" id="hobbies" rows="5" cols="36"></textarea> </td></tr> <tr><td></td><td><input type="submit" name="btn" id="btn" value="Submit" /></td></tr> </table> </form>