file_get_contents() Timeout in php
<p>I know php doesn't give timeout option since it is running from server side. But my logic needs timeout. Please solve this case</p>

<p><strong>My PHP:</strong> login.php :-</p>

<pre><code>$forms_values = $_POST;
$url = "http://sample.com/sample?params=$forms_values";
$resp = file_get_contents($url);
// It takes much time if sample.com is down.
// so need to set time out here.
$response = json_decode($resp, true);
....
....
if ($response["auth"] == "yes"){
   header("index.php");
}
</code></pre>

<p><strong>my html</strong> index.html :-</p>

<pre><code>&lt;form action="login.php" method="post" id="clientLogin"&gt;
    &lt;div&gt;
        &lt;input id="username" placeholder="Email or Username" type="text" name="luser" size="30" value=""&gt;
    &lt;/div&gt;
    &lt;div&gt;
        &lt;input id="passwd" placeholder="Password" type="password" name="lpasswd" size="30" value=""&gt;
    &lt;/div&gt;
&lt;input class="btn" type="submit" value="Sign In"&gt;
&lt;/form&gt;
&lt;script type="text/javascript"&gt;
//This is not working. and obviously delay will happen in server code 
//and i cant get it in client side 

$(window).load(function () {
     var submit = false;
     $("#clientLogin").submit(function(e) {
         alert("me after 1000 mili seconds");
          setTimeout(function(){
              alert("me after 1000 mili seconds");
              submit = true;
              $("#clientLogin").submit(); // if you want            
          }, 15000);
          if(!submit)
              e.preventDefault();
     });
};
&lt;/script&gt;
</code></pre>

<p>This javascript is not working. and obviously delay will happen in server code and i cannot watch it from client side. </p>

<p>so this is what i want. need to terminate submission process (from submit to rendering next page) if my <code>file_get_contents()</code> function is not responding for long.</p>

<p><strong>Note</strong>:
Please dont ask me to use curl, Because i am instructed to not use curl. 
and i cant get it in client side </p>