Apache2 access and error logs parser

Installation

This library can be found on Packagist. The recommended way to install this is through Composer.

Add package to your composer.json:

{
    "require": {
        "mvar/apache2-log-parser": "dev-master"
    }
}

And run Composer to install new packages:

php composer.phar install

Features

Apache2 log lines parsing
- Access log
- Error log (currently, for Apache 2.2 and older)
Log files iterator

Usage

Parsing single Apache2 access log line

<?php

require __DIR__ . '/vendor/autoload.php';

use MVar\Apache2LogParser\AccessLogParser;

// Format can be any of predefined `AccessLogParser::FORMAT_*` constants or custom string
$parser = new AccessLogParser(AccessLogParser::FORMAT_COMBINED);

// String which you want to parse
$line = '66.249.78.230 - - [29/Dec/2013:16:07:58 +0200] "GET /my-page/ HTTP/1.1" 200 2490 "-" ' .
    '"Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)"';

var_export($parser->parseLine($line));

The above example will output:

array (
  'remote_host' => '66.249.78.230',
  'identity' => '-',
  'remote_user' => '-',
  'time' => '2013-12-29T16:07:58+0200',
  'request_line' => 'GET /my-page/ HTTP/1.1',
  'response_code' => '200',
  'bytes_sent' => '2490',
  'request' =>
  array (
    'method' => 'GET',
    'path' => '/my-page/',
    'protocol' => 'HTTP/1.1',
  ),
  'request_headers' =>
  array (
    'Referer' => '-',
    'User-Agent' => 'Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)',
  ),
)

Iterate through Apache log file

Log iterator reads log file line by line. This means that it is possible to parse huge files with low memory usage.

Let's say we have Apache log file access.log with following content:

192.168.25.1 - - [25/Jun/2012:14:26:05 -0700] "GET /favicon.ico HTTP/1.1" 404 498
192.168.25.1 - - [25/Jun/2012:14:26:05 -0700] "GET /icons/blank.gif HTTP/1.1" 200 438

To parse whole log file line by line it needs only to create new iterator with file name and parser arguments:

<?php

require __DIR__ . '/vendor/autoload.php';

use MVar\Apache2LogParser\AccessLogParser;
use MVar\Apache2LogParser\LogIterator;

$parser = new AccessLogParser(AccessLogParser::FORMAT_COMMON);

foreach (new LogIterator('access.log', $parser) as $line => $data) {
    printf("%s %s\n", $data['request']['method'], $data['request']['path']);
}