title: Call to undefined function session_start()
body: <p>I'm trying to start a session with php, but I always get this error:</p>
  
  <pre><code>Fatal error: Call to undefined function session_start() in /www/test/test.php on line 2
  </code></pre>
  
  <p>My Code (Copied form <a href="http://php.net/manual/en/session.examples.basic.php" rel="nofollow">http://php.net/manual/en/session.examples.basic.php</a>):</p>
  
  <pre><code>&lt;?php
  session_start();
  if (!isset($_SESSION['count'])) {
    $_SESSION['count'] = 0;
  } else {
    $_SESSION['count']++;
  }
  ?&gt;
  </code></pre>
  
  <p>In my php.ini I got <code>extension=session.so</code> . Further, my settings in session section are:</p>
  
  <pre><code>[Session]
  session.save_handler = files
  session.save_path = "/tmp"
  session.use_cookies = 1
  ;session.cookie_secure =
  session.use_only_cookies = 1
  session.name = PHPSESSID
  session.auto_start = 0
  session.cookie_lifetime = 0
  session.cookie_path = /
  session.cookie_domain =
  session.cookie_httponly =
  session.serialize_handler = php
  session.gc_probability = 1
  session.gc_divisor     = 100
  session.gc_maxlifetime = 1440
  session.bug_compat_42 = On
  session.bug_compat_warn = On
  session.referer_check =
  session.entropy_length = 0
  ;session.entropy_file = /dev/urandom
  session.entropy_file =
  ;session.entropy_length = 16
  session.cache_limiter = nocache
  session.cache_expire = 180
  session.use_trans_sid = 0
  session.hash_function = 0
  session.hash_bits_per_character = 4
  url_rewriter.tags = "a=href,area=href,frame=src,input=src,form=,fieldset="
  </code></pre>
  
  <p>I'm using PHP Version 5.4.17. The server is running on an <a href="http://arduino.cc/en/Main/ArduinoBoardYun" rel="nofollow">Arduino Yun</a> (Linux).</p>
  
  <p>Anyone can help me, or give ma a hint? :)</p>
  
  <p>Thanks!</p>