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   1  <?php
   2  
   3  namespace Psr\Log;
   4  
   5  /**
   6   * This Logger can be used to avoid conditional log calls.
   7   *
   8   * Logging should always be optional, and if no logger is provided to your
   9   * library creating a NullLogger instance to have something to throw logs at
  10   * is a good way to avoid littering your code with `if ($this->logger) { }`
  11   * blocks.
  12   */
  13  class NullLogger extends AbstractLogger
  14  {
  15      /**
  16       * Logs with an arbitrary level.
  17       *
  18       * @param mixed  $level
  19       * @param string $message
  20       * @param array  $context
  21       *
  22       * @return void
  23       *
  24       * @throws \Psr\Log\InvalidArgumentException
  25       */
  26      public function log($level, $message, array $context = array())
  27      {
  28          // noop
  29      }
  30  }