MongoDB $setOnInsert

mongo_setoninsert.php

<?php
// 接続
$dns = "mongodb://localhost:27017";
$Mongo = new \MongoClient( "mongodb://localhost:27017" );
$table = $Mongo->selectCollection( "testdb", "table" );

// user_id = mgng のデータがあれば update, なければ insert ( upsert )
$where = [ 'user_id' => 'mgng' ];
$set = [
  '$set' => [
    'update_time' => time(),
  ],
  '$setOnInsert' => [
    'user_id' => 'mgng',
    'created_time' => time(),
  ],
];
$options = [ 'upsert' => true ];
$table->update( $where, $set, $options );

// 2秒スリープ
sleep( 2 );

// 再度実行
$set = [
  '$set' => [
    'update_time' => time(),
  ],
  '$setOnInsert' => [
    'user_id' => 'mgng',
    'created_time' => time(),
  ],
];
$table->update( $where, $set, $options );

// データ表示
$cursor = $table->find();
print_r( iterator_to_array( $cursor ) );

/*
Array
(
  [53fbe27d38de70e2fcba8d3f] => Array
    (
      [_id] => MongoId Object
        (
          [$id] => 53fbe27d38de70e2fcba8d3f
        )

      [user_id] => mgng
      [update_time] => 1409016447
      [created_time] => 1409016445
    )
)
*/