Php storm not exacuting my code

Hi and sory for my english I have just installed PhpStrom and trying to run  this code below but nothing  displays on the screen   I have run the same code np++ and everything great what ami dong wrong.this is the code

<form name="form1" method="post" action="ss.php">
    <input name="metin" type="text"><br>
    <input name="sayac"type="text"><br>
    <input type="submit" name="gonder" value="sonucu göster">


</form>
<?php
if($_POST){

    $metin=$_POST["metin"];
    $sayac=$_POST["sayac"];
    for ($i=0;$i<$sayac;$i++){
        echo $metin."<br/>";
    }

}
else{


}
?>