title: ereg_replace to preg_replace conversion
body: <p>How can i convert:</p>
  
  <pre><code>ereg_replace("[[:alpha:]]+://[^&lt;&gt;[:space:]]+[[:alnum:]/]", " ", $data);
  </code></pre>
  
  <p>to</p>
  
  <p><code>preg_replace("......", " ", $data);</code></p>