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<?php
if(isset($_POST[\'btn\'])){
if(isset($_REQUEST[\'menu\'])){
$menu=$_REQUEST[\'menu\'];
   foreach($menu as $key=>$value){
      if(is_array($value)){
          foreach($value as $item){
            echo $item.\"<br>\";
        }
    }

    else{
         echo $value.\"<br>\";
       }
    }
}
else{
    echo \"please select any option\";
}
}
?>
    <html>
    <head>
    <title>PHP Example</title><br>
    <body>
    <form name=\"frm\" action=\"multiple_dropdown.php\" method=\"post\">
    <b>Select your favorite ice_cream flavour(s)</b><br>
    <select name=\"menu[]\" multiple>
    <option value=\"ice cream\">ice cream</option>
    <option value=\"coffee\">coffee</option>
    <option value=\"tea\">tea</option>
    <option value=\"beverage\">beverage</option>
    <option value=\"cold coffee\">cold coffee</option>
    </select><br>
    <input type=\"submit\" name=\"btn\" value=\"submit\" />
    </form>
    </body>
    </html>