PHP7 mongoDB扩展使用的方法分享

前言

最近在做的项目需要将PHP5.6升级到PHP7.0，使用过PHP-mongo扩展的同学应该知道，PHP7.0的mongodb扩展是完全不兼容PHP5.6的mongo扩展的，php-mongodb改如何使用呢。

下面直接说明各种方法的使用:

1.mongodb连接：

private function connect($confArr) {
 try{
  $connStr = \"mongodb://\" . $confArr[\'host\'] . \":\" . $confArr[\'port\'] . \"/\" . $confArr[\'db_name\'];
  $options = array(
   \'username\' => $confArr[\'username\'],
   \'password\' => $confArr[\'password\'],
   \'readPreference\' => $confArr[\'read_preference\'],
   \'connectTimeoutMS\' => intval($confArr[\'connect_timeout_ms\']),
   \'socketTimeoutMS\' => intval($confArr[\'socket_timeout_ms\']),
  );
  $mc = new MongoDB\\Driver\\Manager($connStr, $options);
  return $mc;
 }
 catch(Exception $e){
  return false;
 }
}

2.查询find:

public function find($query = array(), $fields = array(), $collection, $sort = array(), $limit = 0, $skip = 0) {
 $conn = $this->connect();
 if (empty($conn)) {
  return false;
 }
 try {
  $data = array();
  $options = array();
  if (!empty($query)) {
   $options[\'projection\'] = array_fill_keys($fields, 1);
  }
  if (!empty($sort)) {
   $options[\'sort\'] = $sort;
  }
  if (!empty($limit)) {
   $options[\'skip\'] = $skip;
   $options[\'limit\'] = $limit;
  }
  $mongoQuery = new MongoDB\\Driver\\Query($query, $options);
  $readPreference = new MongoDB\\Driver\\ReadPreference(MongoDB\\Driver\\ReadPreference::RP_SECONDARY);
  $cursor = $conn->executeQuery($collection, $mongoQuery, $readPreference);
  foreach($cursor as $value) {
   $data[] = (array)$value;
  }
  return $data;
 } catch (Exception $e) {
  //记录错误日志
 }
 return false;
}

3.插入操作insert:

public function insert($addArr, $collection) {
 if (empty($addArr) || !is_array($addArr)) {
  return false;
 }
 $conn = $this->connect();
 if (empty($conn)) {
  return false;
 }
 try {
  $bulk = new MongoDB\\Driver\\BulkWrite();
  $bulk->insert($addArr);
  $writeConcern = new MongoDB\\Driver\\WriteConcern(MongoDB\\Driver\\WriteConcern::MAJORITY, 6000);
  $result = $conn->executeBulkWrite($collection, $bulk, $writeConcern);
  if ($result->getInsertedCount()) {
   return true;
  }
 } catch (Exception $e) {
  //记录错误日志
 }
 return false;
}

4.删除delete：

public function delete($whereArr, $options = array(), $collection) {
 if (empty($whereArr)) {
  return false;
 }
 if (!isset($options[\'justOne\'])) {
  $options = array(
   \'justOne\' => false,
  );
 }
 $conn = $this->connect();
 if (empty($conn)) {
  return false;
 }
 try {
  $bulk = new MongoDB\\Driver\\BulkWrite();
  $bulk->delete($whereArr, $options);
  $writeConcern = new MongoDB\\Driver\\WriteConcern(MongoDB\\Driver\\WriteConcern::MAJORITY, 30000);
  $result = $conn->executeBulkWrite($collection, $bulk, $writeConcern);
  return true;
 } catch (Exception $e) {
  //记录错误日志
 }
 return false;
}

5.执行command操作:

private function command($params, $dbName) {
 $conn = $this->connect();
 if (empty($conn)) {
  return false;
 }
 try {
  $cmd = new MongoDB\\Driver\\Command($params);
  $result = $conn->executeCommand($dbName, $cmd);
  return $result;
 } catch (Exception $e) {
  //记录错误
 }
 return false;
}

6.统计count:

public function count($query, $collection) {
 try {
  $cmd = array(
   \'count\' => $collection,
   \'query\' => $query,
  );
  $res = $this->command($cmd);
  $result = $res->toArray();
  return $result[0]->n;
 } catch (Exception $e) {
  //记录错误
 }
 return false;
}

7.聚合distinct:

public function distinct($key, $where, $collection) {
 try {
  $cmd = array(
   \'distinct\' => $collection,
   \'key\' => $key,
   \'query\' => $where,
  );
  $res = $this->command($cmd);
  $result = $res->toArray();
  return $result[0]->values;
 } catch (Exception $e) {
  //记录错误
 }
 return false;
}

8.aggregate操作：

public function aggregate($where, $group, $collection) {
 try {
  $cmd = array(
   \'aggregate\' => $collection,
   \'pipeline\' => array(
    array(
     \'$match\' => $where,
    ),
    array(
     \'$group\' => $group,
    ),
   ),
   \'explain\' => false,
  );
  $res = $this->command($cmd);
  if (!$res) {
   return false;
  }
  $result = $res->toArray();
  return $result[0]->total;
 } catch (Exception $e) {
  //记录错误
 }
 return false;
}

总结

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