title: mysqli_connect() showing error
body: <p>i have written a code in php and i have apache and mysql installed and configured perfectly</p>
  
  <pre><code>&lt;?php
  echo "entering db php code";
  $link=mysqli_connect ('localhost','root','MyRootPassword');
  echo "mysqli_connect is called";
  if (!$link)
  {
      echo "cannection is failed";
      exit();    
  }
  echo "connection is ok";
  ?&gt;
  </code></pre>
  
  <p>it's causing an erro. which is ::</p>
  
  <pre><code>Warning: mysqli_connect() [function.mysqli-connect]: 
  Headers and client library minor      version mismatch. Headers:50051 
  Library:50168 in C:\Program Files\Apache Software
  Foundation\Apache2.2\htdocs\db.inc.php on line 3
  </code></pre>
  
  <p>please tell what does this warning mean. and what is wrong with me ?????</p>