git.m6w6.name Git - m6w6/merry/blob - README.md

   1 = merry\\Config
   2
   3 A merry configuration container.
   4
   5 Example:
   6 ```php
   7 use merry\Config;
   8
   9 $config = new Config([
  10     "db" => [
  11         "dsn" => "user=mike",
  12         "flags" => pq\Connection::PERSISTENT
  13     ],
  14     "cache" => [
  15         "pid" => "cluster1",
  16         "hosts" => ["10.0.1.1", "10.0.1.2", "10.0.1.3"]
  17     ]
  18 ]);
  19
  20 printf("Using database: '%s'\n", $config->db->dsn);
  21 printf("Using cache cluster: '%s'\n", $config->cache->pid);
  22
  23 $config->apply([
  24     "db" => function($conf) {
  25         return new pq\Connection($conf->dsn, $conf->flags);
  26     },
  27     "cache" => function($conf) {
  28         $cache = new Memcached($conf->pid);
  29         foreach ($conf->{$conf->pid}->hosts as $host) {
  30             $cache->addServer($host);
  31         }
  32         return $cache;
  33     }
  34 ]);
  35
  36
  37 extract($config->toArray());
  38
  39 if (!($q1 = $cache->get("q1"))) {
  40     $result = $db->exec("SELECT 1");
  41     $cache->set("q1", $q1 = $result->fetchAll());
  42 }
  43 ```
  44
  45 Another example:
  46 ```php
  47 use merry\Config;
  48
  49 $array = parse_ini_string('
  50 [localhost]
  51 db.dsn = "user=mike"
  52 db.flags = 2 ;pq\Connection::PERSISTENT
  53 cache.pid = "cluster1"
  54 cache.cluster1.hosts[] = "10.0.1.1"
  55 cache.cluster1.hosts[] = "10.0.1.2"
  56 cache.cluster1.hosts[] = "10.0.1.3"
  57 [production : localhost]
  58 db.dsn = "user=app"
  59 ');
  60
  61 $config = new Config($array, getenv("APPLICATION_ENV"));
  62 $flags = \RecursiveTreeIterator::BYPASS_CURRENT;
  63 foreach (new \RecursiveTreeIterator($config, $flags) as $key => $val ) {
  64     printf("%s: %s\n", $key, ($val instanceof Config) ? "" : $val);
  65 }
  66 ```
  67
  68 Output:
  69 ```
  70 |-db:
  71 | |-dsn: user=app
  72 | \-flags: 2
  73 \-cache:
  74   |-pid: cluster1
  75   \-cluster1:
  76     \-hosts:
  77       |-0: 10.0.1.1
  78       |-1: 10.0.1.2
  79       \-2: 10.0.1.3
  80 ```