title: How to check if installed OpenSSL version is >= 0.9.8k
body: <p>I have a PHP 5.x script which requires OpenSSL 0.9.8k or higher. </p>
  
  <p>In regard to OpenSSL, I found the following two relevant constants:</p>
  
  <pre><code>OPENSSL_VERSION_TEXT (with value 'OpenSSL 1.0.0c 2 Dec 2010')
  OPENSSL_VERSION_NUMBER (with value '268435519')
  </code></pre>
  
  <p>Unfortunately, I have no clue how to do the mentioned check on these values.</p>