Awesome PHP monolog

Source: Internet
Author: User
Tags php framework
Monolog is a relatively full and easily extensible logging component under PHP. At present, including Symfony, Laravel, cakephp and many other well-known PHP framework are built-in monolog. Require Monolog/monolog ' ~1.7 ' can be installed via GitHub clone Https://github.com/Seldaek/monolog.git or composer. The Monolog code results are as follows:

errorhandler.php (Set program error hander, exception hander to Mogolog takeover)
formatter/(built-in log display format)
handler/(various log processing classes, such as writing files, sending emails, writing sockets, writing queues, etc.)
logger.php (log processing interface)
processor/(built-in processing log class)
registry.php--


An example with an online error log can replace the default error log processing method

[PHP] view plain copy

    1. Require __dir__. '/vendor/autoload.php ';
    2. Use Monolog\logger;
    3. Use Monolog\handler\streamhandler;
    4. Use Monolog\handler\bufferhandler;
    5. Use Monolog\errorhandler;
    6. Use Monolog\processor\memoryusageprocessor;
    7. $logger = new Logger (' Error_logger ');
    8. $stream = new Streamhandler (__dir__. ') /error.log ', logger::error);
    9. $logger->pushhandler (New Bufferhandler ($stream, logger::D Ebug, True, true));// Use Bufferhandler to set the number of logs in the same request up to 10 and then write the file again.
    10. Errorhandler::register ($logger);
    11. Code ...


Monolog is written entirely in terms of object-oriented thinking, it has a psr-3 prs-4 rule that conforms to the fig, so it is very convenient to expand, and here is an example of a log-in database written on the author's document

[PHP] view plain copy

  1. Use Monolog\logger;
  2. Use Monolog\handler\abstractprocessinghandler;
  3. Class Pdohandler extends Abstractprocessinghandler
  4. {
  5. Private $initialized = false;
  6. Private $pdo;
  7. Private $statement;
  8. Public function __construct (PDO $pdo, $level = Logger::D ebug, $bubble = True)
  9. {
  10. $this->pdo = $pdo;
  11. Parent::__construct ($level, $bubble);
  12. }
  13. protected function write (array $record)
  14. {
  15. if (! $this->initialized) {
  16. $this->initialize ();
  17. }
  18. $this->statement->execute (Array (
  19. ' Channel ' = $record [' Channel '],
  20. ' Level ' = $record [' Level '],
  21. ' Message ' = $record [' Formatted '],
  22. ' Time ' = $record [' DateTime ']->format (' U '),
  23. ));
  24. }
  25. Private Function Initialize ()
  26. {
  27. $this->pdo->exec (
  28. ' CREATE TABLE IF not EXISTS monolog '
  29. .' (channel VARCHAR (255), level integer, Message longtext, time integer UNSIGNED) '
  30. );
  31. $this->statement = $this->pdo->prepare (
  32. ' INSERT into Monolog (channel, level, message, Time) VALUES (: Channel,: Level,: Message,: Time) '
  33. );
  34. $this->initialized = true;
  35. }
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