diff --git a/adminer/drivers/mongo.inc.php b/adminer/drivers/mongo.inc.php
index cc58ef0c..54aeaaf2 100644
--- a/adminer/drivers/mongo.inc.php
+++ b/adminer/drivers/mongo.inc.php
@@ -109,97 +109,537 @@ if (isset($_GET["mongo"])) {
 			}
 
 		}
-	}
 
 
 
-	class Min_Driver extends Min_SQL {
-		public $primary = "_id";
-		
-		function select($table, $select, $where, $group, $order = array(), $limit = 1, $page = 0, $print = false) {
-			$select = ($select == array("*")
-				? array()
-				: array_fill_keys($select, true)
-			);
-			$sort = array();
-			foreach ($order as $val) {
-				$val = preg_replace('~ DESC$~', '', $val, 1, $count);
-				$sort[$val] = ($count ? -1 : 1);
+		class Min_Driver extends Min_SQL {
+			public $primary = "_id";
+			
+			function select($table, $select, $where, $group, $order = array(), $limit = 1, $page = 0, $print = false) {
+				$select = ($select == array("*")
+					? array()
+					: array_fill_keys($select, true)
+				);
+				$sort = array();
+				foreach ($order as $val) {
+					$val = preg_replace('~ DESC$~', '', $val, 1, $count);
+					$sort[$val] = ($count ? -1 : 1);
+				}
+				return new Min_Result($this->_conn->_db->selectCollection($table)
+					->find(array(), $select)
+					->sort($sort)
+					->limit($limit != "" ? +$limit : 0)
+					->skip($page * $limit)
+				);
+			}
+			
+			function insert($table, $set) {
+				try {
+					$return = $this->_conn->_db->selectCollection($table)->insert($set);
+					$this->_conn->errno = $return['code'];
+					$this->_conn->error = $return['err'];
+					$this->_conn->last_id = $set['_id'];
+					return !$return['err'];
+				} catch (Exception $ex) {
+					$this->_conn->error = $ex->getMessage();
+					return false;
+				}
 			}
-			return new Min_Result($this->_conn->_db->selectCollection($table)
-				->find(array(), $select)
-				->sort($sort)
-				->limit($limit != "" ? +$limit : 0)
-				->skip($page * $limit)
-			);
 		}
-		
-		function insert($table, $set) {
-			try {
-				$return = $this->_conn->_db->selectCollection($table)->insert($set);
-				$this->_conn->errno = $return['code'];
-				$this->_conn->error = $return['err'];
-				$this->_conn->last_id = $set['_id'];
-				return !$return['err'];
-			} catch (Exception $ex) {
-				$this->_conn->error = $ex->getMessage();
+
+		function get_databases($flush) {
+			global $connection;
+			$return = array();
+			$dbs = $connection->_link->listDBs();
+			foreach ($dbs['databases'] as $db) {
+				$return[] = $db['name'];
+			}
+			return $return;
+		}
+
+		function count_tables($databases) {
+			global $connection;
+			$return = array();
+			foreach ($databases as $db) {
+				$return[$db] = count($connection->_link->selectDB($db)->getCollectionNames(true));
+			}
+			return $return;
+		}
+
+		function tables_list() {
+			global $connection;
+			return array_fill_keys($connection->_db->getCollectionNames(true), 'table');
+		}
+
+		function drop_databases($databases) {
+			global $connection;
+			foreach ($databases as $db) {
+				$response = $connection->_link->selectDB($db)->drop();
+				if (!$response['ok']) {
+					return false;
+				}
+			}
+			return true;
+		}
+
+		function indexes($table, $connection2 = null) {
+			global $connection;
+			$return = array();
+			foreach ($connection->_db->selectCollection($table)->getIndexInfo() as $index) {
+				$descs = array();
+				foreach ($index["key"] as $column => $type) {
+					$descs[] = ($type == -1 ? '1' : null);
+				}
+				$return[$index["name"]] = array(
+					"type" => ($index["name"] == "_id_" ? "PRIMARY" : ($index["unique"] ? "UNIQUE" : "INDEX")),
+					"columns" => array_keys($index["key"]),
+					"lengths" => array(),
+					"descs" => $descs,
+				);
+			}
+			return $return;
+		}
+
+		function fields($table) {
+			return fields_from_edit();
+		}
+
+		function found_rows($table_status, $where) {
+			global $connection;
+			//! don't call count_rows()
+			return $connection->_db->selectCollection($_GET["select"])->count($where);
+		}
+
+		$operators = array("=");
+
+	} elseif (class_exists('MongoDB\Driver\Manager')) {
+		class Min_DB {
+			var $extension = "MongoDB", $error, $last_id;
+			/** @var MongoDB\Driver\Manager */
+			var $_link;
+			var $_db, $_db_name;
+
+			function connect($server, $username, $password) {
+				global $adminer;
+				$db = $adminer->database();
+				$options = array();
+				if ($username != "") {
+					$options["username"] = $username;
+					$options["password"] = $password;
+				}
+				if ($db != "") {
+					$options["db"] = $db;
+				}
+				try {
+					$this->_link = new MongoDB\Driver\Manager("mongodb://$server", $options);
+					return true;
+				} catch (Exception $ex) {
+					$this->error = $ex->getMessage();
+					return false;
+				}
+			}
+
+			function query($query) {
 				return false;
 			}
+
+			function select_db($database) {
+				try {
+					$this->_db_name = $database;
+					return true;
+				} catch (Exception $ex) {
+					$this->error = $ex->getMessage();
+					return false;
+				}
+			}
+
+			function quote($string) {
+				return $string;
+			}
+
 		}
-	}
 
+		class Min_Result {
+			var $num_rows, $_rows = array(), $_offset = 0, $_charset = array();
 
+			function __construct($result) {
+				foreach ($result as $item) {
+					$row = array();
+					foreach ($item as $key => $val) {
+						if (is_a($val, 'MongoDB\BSON\Binary')) {
+							$this->_charset[$key] = 63;
+						}
+						$row[$key] =
+							(is_a($val, 'MongoDB\BSON\ObjectID') ? 'MongoDB\BSON\ObjectID("' . strval($val) . '")' :
+								(is_a($val, 'MongoDB\BSON\UTCDatetime') ? $val->toDateTime()->format('Y-m-d H:i:s') :
+									(is_a($val, 'MongoDB\BSON\Binary') ? $val->bin : //! allow downloading
+										(is_a($val, 'MongoDB\BSON\Regex') ? strval($val) :
+											(is_object($val) ? json_encode($val, JSON_UNESCAPED_UNICODE) :
+												$val // MongoMinKey, MongoMaxKey
+											)))));
+					}
+					$this->_rows[] = $row;
+					foreach ($row as $key => $val) {
+						if (!isset($this->_rows[0][$key])) {
+							$this->_rows[0][$key] = null;
+						}
+					}
+				}
+				$this->num_rows = $result->count;
+			}
+
+			function fetch_assoc() {
+				$row = current($this->_rows);
+				if (!$row) {
+					return $row;
+				}
+				$return = array();
+				foreach ($this->_rows[0] as $key => $val) {
+					$return[$key] = $row[$key];
+				}
+				next($this->_rows);
+				return $return;
+			}
+
+			function fetch_row() {
+				$return = $this->fetch_assoc();
+				if (!$return) {
+					return $return;
+				}
+				return array_values($return);
+			}
+
+			function fetch_field() {
+				$keys = array_keys($this->_rows[0]);
+				$name = $keys[$this->_offset++];
+				return (object) array(
+					'name' => $name,
+					'charsetnr' => $this->_charset[$name],
+				);
+			}
 
-	function connect() {
-		global $adminer;
-		$connection = new Min_DB;
-		$credentials = $adminer->credentials();
-		if ($connection->connect($credentials[0], $credentials[1], $credentials[2])) {
-			return $connection;
 		}
-		return $connection->error;
-	}
 
-	function error() {
-		global $connection;
-		return h($connection->error);
-	}
 
-	function logged_user() {
-		global $adminer;
-		$credentials = $adminer->credentials();
-		return $credentials[1];
-	}
+		class Min_Driver extends Min_SQL {
+			public $primary = "_id";
 
-	function get_databases($flush) {
-		global $connection;
-		$return = array();
-		$dbs = $connection->_link->listDBs();
-		foreach ($dbs['databases'] as $db) {
-			$return[] = $db['name'];
+			function select($table, $select, $where, $group, $order = array(), $limit = 1, $page = 0, $print = false) {
+				global $connection;
+				$select = ($select == array("*")
+					? array()
+					: array_fill_keys($select, 1)
+				);
+				if (count($select) && !isset($select['_id'])) {
+					$select['_id'] = 0;
+				}
+				$where = where_to_query($where);
+				$sort = array();
+				foreach ($order as $val) {
+					$val = preg_replace('~ DESC$~', '', $val, 1, $count);
+					$sort[$val] = ($count ? -1 : 1);
+				}
+				if (isset($_GET['limit']) && is_numeric($_GET['limit']) && $_GET['limit'] > 0) {
+					$limit = $_GET['limit'];
+				}
+				$limit = min(200, max(1, (int)$limit));
+				$skip = $page * $limit;
+				$query = new MongoDB\Driver\Query($where, array('projection' => $select, 'limit' => $limit, 'skip' => $skip, 'sort' => $sort));
+				$results = $connection->_link->executeQuery("{$connection->_db_name}.$table", $query);
+				return new Min_Result($results);
+			}
+
+			function update($table, $set, $queryWhere, $limit = 0, $separator = "\n") {
+				global $connection;
+				$db = $connection->_db_name;
+				$where = sql_query_where_parser($queryWhere);
+				$bulk = new MongoDB\Driver\BulkWrite(array());
+				if (isset($set['_id'])) {
+					unset($set['_id']);
+				}
+				$removeFields = array();
+				foreach ($set as $key => $value) {
+					if ($value == 'NULL') {
+						$removeFields[$key] = 1;
+						unset($set[$key]);
+					}
+				}
+				$update = array('$set' => $set);
+				if (count($removeFields)) {
+					$update['$unset'] = $removeFields;
+				}
+				$bulk->update($where, $update, array('upsert' => false));
+				$results = $connection->_link->executeBulkWrite("$db.$table", $bulk);
+				$connection->affected_rows = $results->getModifiedCount();
+				return true;
+			}
+
+			function delete($table, $queryWhere, $limit = 0) {
+				global $connection;
+				$db = $connection->_db_name;
+				$where = sql_query_where_parser($queryWhere);
+				$bulk = new MongoDB\Driver\BulkWrite(array());
+				$bulk->delete($where, array('limit' => $limit));
+				$results = $connection->_link->executeBulkWrite("$db.$table", $bulk);
+				$connection->affected_rows = $results->getDeletedCount();
+				return true;
+			}
+
+			function insert($table, $set) {
+				global $connection;
+				$db = $connection->_db_name;
+				$bulk = new MongoDB\Driver\BulkWrite(array());
+				if (isset($set['_id']) && empty($set['_id'])) {
+					unset($set['_id']);
+				}
+				$bulk->insert($set);
+				$results = $connection->_link->executeBulkWrite("$db.$table", $bulk);
+				$connection->affected_rows = $results->getInsertedCount();
+				return true;
+			}
 		}
-		return $return;
-	}
 
-	function collations() {
-		return array();
-	}
-
-	function db_collation($db, $collations) {
-	}
-
-	function count_tables($databases) {
-		global $connection;
-		$return = array();
-		foreach ($databases as $db) {
-			$return[$db] = count($connection->_link->selectDB($db)->getCollectionNames(true));
+		function get_databases($flush) {
+			/** @var $connection Min_DB */
+			global $connection;
+			$return = array();
+			$command = new MongoDB\Driver\Command(array('listDatabases' => 1));
+			$results = $connection->_link->executeCommand('admin', $command);
+			foreach ($results as $dbs) {
+				foreach ($dbs->databases as $db) {
+					$return[] = $db->name;
+				}
+			}
+			return $return;
 		}
-		return $return;
+
+		function count_tables($databases) {
+			$return = array();
+			return $return;
+		}
+
+		function tables_list() {
+			global $connection;
+			$command = new MongoDB\Driver\Command(array('listCollections' => 1));
+			$results = $connection->_link->executeCommand($connection->_db_name, $command);
+			$collections = array();
+			foreach ($results as $result) {
+				$collections[$result->name] = 'table';
+			}
+			return $collections;
+		}
+
+		function drop_databases($databases) {
+			return false;
+		}
+
+		function indexes($table, $connection2 = null) {
+			global $connection;
+			$return = array();
+			$command = new MongoDB\Driver\Command(array('listIndexes' => $table));
+			$results = $connection->_link->executeCommand($connection->_db_name, $command);
+			foreach ($results as $index) {
+				$descs = array();
+				$columns = array();
+				foreach (get_object_vars($index->key) as $column => $type) {
+					$descs[] = ($type == -1 ? '1' : null);
+					$columns[] = $column;
+				}
+				$return[$index->name] = array(
+					"type" => ($index->name == "_id_" ? "PRIMARY" : (isset($index->unique) ? "UNIQUE" : "INDEX")),
+					"columns" => $columns,
+					"lengths" => array(),
+					"descs" => $descs,
+				);
+			}
+			return $return;
+		}
+
+		function fields($table) {
+			$fields = fields_from_edit();
+			if (!count($fields)) {
+				global $driver;
+				$result = $driver->select($table, array("*"), null, null, array(), 10);
+				while ($row = $result->fetch_assoc()) {
+					foreach ($row as $key => $val) {
+						$row[$key] = null;
+						$fields[$key] = array(
+							"field" => $key,
+							"type" => "string",
+							"null" => ($key != $driver->primary),
+							"auto_increment" => ($key == $driver->primary),
+							"privileges" => array(
+								"insert" => 1,
+								"select" => 1,
+								"update" => 1,
+							),
+						);
+					}
+				}
+			}
+			return $fields;
+		}
+
+		function found_rows($table_status, $where) {
+			global $connection;
+			$where = where_to_query($where);
+			$command = new MongoDB\Driver\Command(array('count' => $table_status['Name'], 'query' => $where));
+			$results = $connection->_link->executeCommand($connection->_db_name, $command);
+			$toArray = $results->toArray();
+			return $toArray[0]->n;
+		}
+
+		function sql_query_where_parser($queryWhere) {
+			$queryWhere = trim(preg_replace('/WHERE[\s]?[(]?\(?/', '', $queryWhere));
+			$queryWhere = preg_replace('/\)\)\)$/', ')', $queryWhere);
+			$wheres = explode(' AND ', $queryWhere);
+			$wheresOr = explode(') OR (', $queryWhere);
+			$where = array();
+			foreach ($wheres as $whereStr) {
+				$where[] = trim($whereStr);
+			}
+			if (count($wheresOr) == 1) {
+				$wheresOr = array();
+			} elseif (count($wheresOr) > 1) {
+				$where = array();
+			}
+			return where_to_query($where, $wheresOr);
+		}
+
+		function where_to_query($whereAnd = array(), $whereOr = array()) {
+			global $operators;
+			$data = array();
+			foreach (array('and' => $whereAnd, 'or' => $whereOr) as $type => $where) {
+				if (is_array($where)) {
+					foreach ($where as $expression) {
+						list($col, $op, $val) = explode(" ", $expression, 3);
+						if ($col == "_id") {
+							$val = str_replace('MongoDB\BSON\ObjectID("', "", $val);
+							$val = str_replace('")', "", $val);
+							$val = new MongoDB\BSON\ObjectID($val);
+						}
+						if (!in_array($op, $operators)) {
+							continue;
+						}
+						switch ($op) {
+							case '=':
+								$op = '$eq';
+								break;
+							case '!=':
+								$op = '$ne';
+								break;
+							case '>':
+								$op = '$gt';
+								break;
+							case '<':
+								$op = '$lt';
+								break;
+							case '>=':
+								$op = '$gte';
+								break;
+							case '<=':
+								$op = '$lte';
+								break;
+							case 'regex':
+								$op = '$regex';
+								break;
+							case '(f)=':
+								$op = '$eq';
+								$val = (float)$val;
+								break;
+							case '(f)!=':
+								$op = '$ne';
+								$val = (float)$val;
+								break;
+							case '(f)>':
+								$op = '$gt';
+								$val = (float)$val;
+								break;
+							case '(f)<':
+								$op = '$lt';
+								$val = (float)$val;
+								break;
+							case '(f)>=':
+								$op = '$gte';
+								$val = (float)$val;
+								break;
+							case '(f)<=':
+								$op = '$lte';
+								$val = (float)$val;
+								break;
+							case '(date)=':
+								$op = '$eq';
+								$dateTime = (new \DateTime($val));
+								$val = new MongoDB\BSON\UTCDatetime($dateTime->getTimestamp() * 1000);
+								break;
+							case '(date)!=':
+								$op = '$ne';
+								$dateTime = (new \DateTime($val));
+								$val = new MongoDB\BSON\UTCDatetime($dateTime->getTimestamp() * 1000);
+								break;
+							case '(date)>':
+								$op = '$gt';
+								$dateTime = (new \DateTime($val));
+								$val = new MongoDB\BSON\UTCDatetime($dateTime->getTimestamp() * 1000);
+								break;
+							case '(date)<':
+								$op = '$lt';
+								$dateTime = (new \DateTime($val));
+								$val = new MongoDB\BSON\UTCDatetime($dateTime->getTimestamp() * 1000);
+								break;
+							case '(date)>=':
+								$op = '$gte';
+								$dateTime = (new \DateTime($val));
+								$val = new MongoDB\BSON\UTCDatetime($dateTime->getTimestamp() * 1000);
+								break;
+							case '(date)<=':
+								$op = '$lte';
+								$dateTime = (new \DateTime($val));
+								$val = new MongoDB\BSON\UTCDatetime($dateTime->getTimestamp() * 1000);
+								break;
+							default:
+								continue;
+						}
+						if ($type == 'and') {
+							$data['$and'][] = array($col => array($op => $val));
+						} elseif ($type == 'or') {
+							$data['$or'][] = array($col => array($op => $val));
+						}
+					}
+				}
+			}
+			return $data;
+		}
+
+		$operators = array(
+			"=",
+			"!=",
+			">",
+			"<",
+			">=",
+			"<=",
+			"regex",
+			"(f)=",
+			"(f)!=",
+			"(f)>",
+			"(f)<",
+			"(f)>=",
+			"(f)<=",
+			"(date)=",
+			"(date)!=",
+			"(date)>",
+			"(date)<",
+			"(date)>=",
+			"(date)<=",
+		);
 	}
 
-	function tables_list() {
-		global $connection;
-		return array_fill_keys($connection->_db->getCollectionNames(true), 'table');
+	function table($idf) {
+		return $idf;
+	}
+
+	function idf_escape($idf) {
+		return $idf;
 	}
 
 	function table_status($name = "", $fast = false) {
@@ -213,43 +653,73 @@ if (isset($_GET["mongo"])) {
 		return $return;
 	}
 
-	function information_schema() {
-	}
-
-	function is_view($table_status) {
-	}
-
-	function drop_databases($databases) {
+	function last_id() {
 		global $connection;
-		foreach ($databases as $db) {
-			$response = $connection->_link->selectDB($db)->drop();
-			if (!$response['ok']) {
+		return $connection->last_id;
+	}
+
+	function error() {
+		global $connection;
+		return h($connection->error);
+	}
+
+	function collations() {
+		return array();
+	}
+
+	function logged_user() {
+		global $adminer;
+		$credentials = $adminer->credentials();
+		return $credentials[1];
+	}
+
+	function connect() {
+		global $adminer;
+		$connection = new Min_DB;
+		$credentials = $adminer->credentials();
+		if ($connection->connect($credentials[0], $credentials[1], $credentials[2])) {
+			return $connection;
+		}
+		return $connection->error;
+	}
+
+	function alter_indexes($table, $alter) {
+		global $connection;
+		foreach ($alter as $val) {
+			list($type, $name, $set) = $val;
+			if ($set == "DROP") {
+				$return = $connection->_db->command(array("deleteIndexes" => $table, "index" => $name));
+			} else {
+				$columns = array();
+				foreach ($set as $column) {
+					$column = preg_replace('~ DESC$~', '', $column, 1, $count);
+					$columns[$column] = ($count ? -1 : 1);
+				}
+				$return = $connection->_db->selectCollection($table)->ensureIndex($columns, array(
+					"unique" => ($type == "UNIQUE"),
+					"name" => $name,
+					//! "sparse"
+				));
+			}
+			if ($return['errmsg']) {
+				$connection->error = $return['errmsg'];
 				return false;
 			}
 		}
 		return true;
 	}
 
-	function indexes($table, $connection2 = null) {
-		global $connection;
-		$return = array();
-		foreach ($connection->_db->selectCollection($table)->getIndexInfo() as $index) {
-			$descs = array();
-			foreach ($index["key"] as $column => $type) {
-				$descs[] = ($type == -1 ? '1' : null);
-			}
-			$return[$index["name"]] = array(
-				"type" => ($index["name"] == "_id_" ? "PRIMARY" : ($index["unique"] ? "UNIQUE" : "INDEX")),
-				"columns" => array_keys($index["key"]),
-				"lengths" => array(),
-				"descs" => $descs,
-			);
-		}
-		return $return;
+	function support($feature) {
+		return preg_match("~database|indexes~", $feature);
 	}
 
-	function fields($table) {
-		return fields_from_edit();
+	function db_collation($db, $collations) {
+	}
+
+	function information_schema() {
+	}
+
+	function is_view($table_status) {
 	}
 
 	function convert_field($field) {
@@ -270,12 +740,6 @@ if (isset($_GET["mongo"])) {
 		return array();
 	}
 
-	function found_rows($table_status, $where) {
-		global $connection;
-		//! don't call count_rows()
-		return $connection->_db->selectCollection($_GET["select"])->count($where);
-	}
-
 	function alter_table($table, $name, $fields, $foreign, $comment, $engine, $collation, $auto_increment, $partitioning) {
 		global $connection;
 		if ($table == "") {
@@ -306,51 +770,7 @@ if (isset($_GET["mongo"])) {
 		return true;
 	}
 
-	function alter_indexes($table, $alter) {
-		global $connection;
-		foreach ($alter as $val) {
-			list($type, $name, $set) = $val;
-			if ($set == "DROP") {
-				$return = $connection->_db->command(array("deleteIndexes" => $table, "index" => $name));
-			} else {
-				$columns = array();
-				foreach ($set as $column) {
-					$column = preg_replace('~ DESC$~', '', $column, 1, $count);
-					$columns[$column] = ($count ? -1 : 1);
-				}
-				$return = $connection->_db->selectCollection($table)->ensureIndex($columns, array(
-					"unique" => ($type == "UNIQUE"),
-					"name" => $name,
-					//! "sparse"
-				));
-			}
-			if ($return['errmsg']) {
-				$connection->error = $return['errmsg'];
-				return false;
-			}
-		}
-		return true;
-	}
-	
-	function last_id() {
-		global $connection;
-		return $connection->last_id;
-	}
-
-	function table($idf) {
-		return $idf;
-	}
-
-	function idf_escape($idf) {
-		return $idf;
-	}
-
-	function support($feature) {
-		return preg_match("~database|indexes~", $feature);
-	}
-
 	$jush = "mongo";
-	$operators = array("=");
 	$functions = array();
 	$grouping = array();
 	$edit_functions = array(array("json"));
diff --git a/changes.txt b/changes.txt
index c3e2565f..de8aca9b 100644
--- a/changes.txt
+++ b/changes.txt
@@ -6,6 +6,7 @@ PostgreSQL: Respect NULL default value
 PostgreSQL: Do not export triggers if not requested
 PostgreSQL: Export DROP SEQUENCE if dropping table
 Elasticsearch: Insert, update, delete
+MongoDB: Support mongodb PHP extension
 
 Adminer 4.4.0 (released 2018-01-17):
 Add Content Security Policy