Strange 502 Bad Gateway error due to php
<p>Strangely my website crash with a 502 error due to my php script in index.php on chrome :</p>

<p>/* index.php */</p>

<pre><code>include('code/include/langue.php');
</code></pre>

<p>/* langue.php */</p>

<pre><code>if($l == 'en'){
    define("lg_slogan", "Discover and share Drum &amp; Bass, Dubstep and Dub tracks.");
    define("lg_keywords", "drum&amp;bass, drum, bass, drum &amp; bass, dub, dubstep, break, breakbeat, electro, bass music, playlist, free");
    define("lg_name", "Name");
    define("lg_password", "Password");
    define("lg_keepSessionActive", "Keep me logged in");
    define("lg_login", "Login");
    define("lg_subscribe", "Subscribe");
...

}

else{   // français
    define("lg_slogan", "D&amp;eacute;couvrez et partagez des tracks Drum &amp;amp; Bass, Dubstep et Dub.");
    define("lg_keywords", "drum&amp;amp;bass, drum, bass, drum &amp;amp; bass, dub, dubstep, break, breakbeat, electro, bass music, playlist, gratuit");
    define("lg_name", "Nom");
    define("lg_password", "Mot de passe");
...

}

$const = get_defined_constants(true);

foreach($const['user'] as $key =&gt; $value){
    setcookie($key, $value, time()+14400);
}
</code></pre>

<p>When I comment the include in index.php, the 502 error desapear !</p>

<p>502 error is a server error, isn't it ?        </p>
