[PHP]mongoDBをPHPから使うサンプル

mongosample.php

<?php

// connect
$mongo = new MongoClient("localhost:27017");

$db = $mongo->selectDB("test");
$col = $db->createCollection("test");

// insert
$db = $mongo->selectDB('test');
$col = $db->selectCollection('test');

$data = array("name" => "foo", "num" => array('a' => 1, 'b' => 12));
$col->insert($data);

// select
$cursor = $col->find(array('name' => 'foo'));
foreach ($cursor as $key => $val) {
    var_dump($val);
}

array(3) {
  ["_id"]=>
  object(MongoId)#7 (1) {
    ["$id"]=>
    string(24) "5187ee61837246a905000000"
  }
  ["name"]=>
  string(3) "foo"
  ["num"]=>
  array(2) {
    ["a"]=>
    int(1)
    ["b"]=>
    int(12)
  }
}
// update 
$db = $mongo->selectDB('test');
$col = $db->selectCollection('test');

$cursor = $col->findOne(array('num.a' => 1));

$id = $cursor['_id'];
$col->update(array('_id' => $id), array('$set' => array( 'num' => array('a' => 'up-ok'))));

array(3) {
  ["_id"]=>
  object(MongoId)#8 (1) {
    ["$id"]=>
    string(24) "5187ee61837246a905000000"
  }
  ["name"]=>
  string(3) "foo"
  ["num"]=>
  array(1) {          // 上書きされるので、{"num" : {"b" : 12}}が消える
    ["a"]=>
    string(5) "up-ok"
  }
}