title: phpdoc standard for setting default value of an optional parameter?
body: <p>Example:</p>
  
  <pre><code>/**
   * This function will determine whether or not one string starts with another string.
   * @param string $haystack &lt;p&gt;The string that needs to be checked.&lt;/p&gt;
   * @param string $needle &lt;p&gt;The string that is being checked for.&lt;/p&gt;
   * @param boolean $case[optional] &lt;p&gt;Set to false to ignore case(capital or normal characters)&lt;/p&gt;
   * @return boolean &lt;p&gt;If the $haystack string does start with the $needle string, the return will be true. False if not.&lt;/p&gt;
   */
  function endsWith($haystack,$needle,$case=true) {
      if($case){return (strcmp(substr($haystack, strlen($haystack) - strlen($needle)),$needle)===0);}
      return (strcasecmp(substr($haystack, strlen($haystack) - strlen($needle)),$needle)===0);
  }
  </code></pre>
  
  <p>The optional parameter is set to <code>true</code> by default. I wish to indicate what the default setting is in the documentation. Is there a standard way of doing this or do I have to mention it in the description?</p>