original_string: public static function get_performance_info() {
          global $CFG, $PERF;
  
          if (!session_id()) {
              return array();
          }
  
          self::load_handler();
          $size = display_size(strlen(session_encode()));
          $handler = get_class(self::$handler);
  
          $info = array();
          $info['size'] = $size;
          $info['html'] = html_writer::div("Session ($handler): $size", "sessionsize");
          $info['txt'] = "Session ($handler): $size ";
  
          if (!empty($CFG->debugsessionlock)) {
              $sessionlock = self::get_session_lock_info();
              if (!empty($sessionlock['held'])) {
                  // The page displays the footer and the session has been closed.
                  $sessionlocktext = "Session lock held: ".number_format($sessionlock['held'], 3)." secs";
              } else {
                  // The session hasn't yet been closed and so we assume now with microtime.
                  $sessionlockheld = microtime(true) - $PERF->sessionlock['gained'];
                  $sessionlocktext = "Session lock open: ".number_format($sessionlockheld, 3)." secs";
              }
              $info['txt'] .= $sessionlocktext;
              $info['html'] .= html_writer::div($sessionlocktext, "sessionlockstart");
              $sessionlockwaittext = "Session lock wait: ".number_format($sessionlock['wait'], 3)." secs";
              $info['txt'] .= $sessionlockwaittext;
              $info['html'] .= html_writer::div($sessionlockwaittext, "sessionlockwait");
          }
  
          return $info;
      }
code: public static function get_performance_info() {
          global $CFG, $PERF;
  
          if (!session_id()) {
              return array();
          }
  
          self::load_handler();
          $size = display_size(strlen(session_encode()));
          $handler = get_class(self::$handler);
  
          $info = array();
          $info['size'] = $size;
          $info['html'] = html_writer::div("Session ($handler): $size", "sessionsize");
          $info['txt'] = "Session ($handler): $size ";
  
          if (!empty($CFG->debugsessionlock)) {
              $sessionlock = self::get_session_lock_info();
              if (!empty($sessionlock['held'])) {
                  // The page displays the footer and the session has been closed.
                  $sessionlocktext = "Session lock held: ".number_format($sessionlock['held'], 3)." secs";
              } else {
                  // The session hasn't yet been closed and so we assume now with microtime.
                  $sessionlockheld = microtime(true) - $PERF->sessionlock['gained'];
                  $sessionlocktext = "Session lock open: ".number_format($sessionlockheld, 3)." secs";
              }
              $info['txt'] .= $sessionlocktext;
              $info['html'] .= html_writer::div($sessionlocktext, "sessionlockstart");
              $sessionlockwaittext = "Session lock wait: ".number_format($sessionlock['wait'], 3)." secs";
              $info['txt'] .= $sessionlockwaittext;
              $info['html'] .= html_writer::div($sessionlockwaittext, "sessionlockwait");
          }
  
          return $info;
      }
code_tokens: public static function get_performance_info ( ) { global $ CFG , $ PERF ; if ( ! session_id ( ) ) { return array ( ) ; } self :: load_handler ( ) ; $ size = display_size ( strlen ( session_encode ( ) ) ) ; $ handler = get_class ( self :: $ handler ) ; $ info = array ( ) ; $ info [ 'size' ] = $ size ; $ info [ 'html' ] = html_writer :: div ( "Session ($handler): $size" , "sessionsize" ) ; $ info [ 'txt' ] = "Session ($handler): $size " ; if ( ! empty ( $ CFG -> debugsessionlock ) ) { $ sessionlock = self :: get_session_lock_info ( ) ; if ( ! empty ( $ sessionlock [ 'held' ] ) ) { // The page displays the footer and the session has been closed. $ sessionlocktext = "Session lock held: " . number_format ( $ sessionlock [ 'held' ] , 3 ) . " secs" ; } else { // The session hasn't yet been closed and so we assume now with microtime. $ sessionlockheld = microtime ( true ) - $ PERF -> sessionlock [ 'gained' ] ; $ sessionlocktext = "Session lock open: " . number_format ( $ sessionlockheld , 3 ) . " secs" ; } $ info [ 'txt' ] .= $ sessionlocktext ; $ info [ 'html' ] .= html_writer :: div ( $ sessionlocktext , "sessionlockstart" ) ; $ sessionlockwaittext = "Session lock wait: " . number_format ( $ sessionlock [ 'wait' ] , 3 ) . " secs" ; $ info [ 'txt' ] .= $ sessionlockwaittext ; $ info [ 'html' ] .= html_writer :: div ( $ sessionlockwaittext , "sessionlockwait" ) ; } return $ info ; }
docstring: Returns current page performance info.
  
  @return array perf info
docstring_tokens: Returns current page performance info .