array probleem

<?php
$mijn_ext = "nl";
list($landen) <<wil graag sorteren op het 2de deel dus de volledige land namen
{
if($landen['$mijn_ext']==$landen['ext']){
echo '<option value="$landen['ext']" selected>$landen['fullname']</option>";
} else {
echo '<option value="$landen['ext']">$landen['fullname']</option>";
}
?>

<?php
$mijn_ext = "nl";
list($landen) <<wil graag sorteren op het 2de deel dus de volledige land namen
{
if($landen['$mijn_ext']==$landen['ext']){
echo '<option value="$landen['ext']" selected>$landen['fullname']</option>";
} else {
echo '<option value="$landen['ext']">$landen['fullname']</option>";
}
?>

<?php
$landen = array(....); //kopieer die array van het script

$ext = 'nl'; //gekozen land?

echo '<select name="landen">';
foreach( $landen as $code => $name ) {

    if( $code == $ext ) {
        echo '<option value="'.$name.'" selected>'.$name.'</option>';
    } else {
        echo '<option value="'.$name.'">'.$name.'</option>';
    }

}

echo '</select>';

<?php
$landen = array(....); //kopieer die array van het script
 
$ext = 'nl'; //gekozen land?
 
echo '<select name="landen">';
foreach( $landen as $code => $name ) {
 
    if( $code == $ext ) {
        echo '<option value="'.$name.'" selected>'.$name.'</option>';
    } else {
        echo '<option value="'.$name.'">'.$name.'</option>';
    }
 
}
 
echo '</select>';