original_string: public static function versionGuard($reqVersion, $errMsg='')
      {
          if (version_compare(PHP_VERSION, $reqVersion) == -1) 
          {
              if ($errMsg == '')
              {
                  $errMsg = 'Required PHP version: ' . $reqVersion . 
                                  ', current Version: ' . PHP_VERSION;    
              }
              
              die($errMsg); 
          }
      }
code: public static function versionGuard($reqVersion, $errMsg='')
      {
          if (version_compare(PHP_VERSION, $reqVersion) == -1) 
          {
              if ($errMsg == '')
              {
                  $errMsg = 'Required PHP version: ' . $reqVersion . 
                                  ', current Version: ' . PHP_VERSION;    
              }
              
              die($errMsg); 
          }
      }
code_tokens: public static function versionGuard ( $ reqVersion , $ errMsg = '' ) { if ( version_compare ( PHP_VERSION , $ reqVersion ) == - 1 ) { if ( $ errMsg == '' ) { $ errMsg = 'Required PHP version: ' . $ reqVersion . ', current Version: ' . PHP_VERSION ; } die ( $ errMsg ) ; } }
docstring: Implement a version guard. This will throw an exception if we do not
  have the required version of PHP that is specified.
  @param String $reqVersion - required version of php, e.g '5.4.0'
  @throws an exception if we do not meet the required php
  version.
docstring_tokens: Implement a version guard . This will throw an exception if we do not have the required version of PHP that is specified .