1PSR Log
2=======
3
4This repository holds all interfaces/classes/traits related to
5[PSR-3](https://github.com/php-fig/fig-standards/blob/master/accepted/PSR-3-logger-interface.md).
6
7Note that this is not a logger of its own. It is merely an interface that
8describes a logger. See the specification for more details.
9
10Installation
11------------
12
13```bash
14composer require psr/log
15```
16
17Usage
18-----
19
20If you need a logger, you can use the interface like this:
21
22```php
23<?php
24
25use Psr\Log\LoggerInterface;
26
27class Foo
28{
29    private $logger;
30
31    public function __construct(LoggerInterface $logger = null)
32    {
33        $this->logger = $logger;
34    }
35
36    public function doSomething()
37    {
38        if ($this->logger) {
39            $this->logger->info('Doing work');
40        }
41
42        try {
43            $this->doSomethingElse();
44        } catch (Exception $exception) {
45            $this->logger->error('Oh no!', array('exception' => $exception));
46        }
47
48        // do something useful
49    }
50}
51```
52
53You can then pick one of the implementations of the interface to get a logger.
54
55If you want to implement the interface, you can require this package and
56implement `Psr\Log\LoggerInterface` in your code. Please read the
57[specification text](https://github.com/php-fig/fig-standards/blob/master/accepted/PSR-3-logger-interface.md)
58for details.
59