title: php if else & URL vars
body: <p>URL</p>
  
  <blockquote>
    <p>x.php?foo=100</p>
  </blockquote>
  
  <p>x.php</p>
  
  <pre><code>$x = $_GET['foo'];
  
  if ($x = 100) {
     echo "yeah";    
  }else{
     echo "no";
  }
  </code></pre>
  
  <p>My code doesnt work, where is error?</p>