diff --git a/adminer/call.inc.php b/adminer/call.inc.php
index 33f4cd78..1800ee16 100644
--- a/adminer/call.inc.php
+++ b/adminer/call.inc.php
@@ -40,7 +40,7 @@ if (!$error && $_POST) {
 	if (!$result) {
 		echo "<p class='error'>" . error() . "\n";
 	} else {
-		$connection2 = connect();
+		$connection2 = connect($adminer->credentials());
 		if (is_object($connection2)) {
 			$connection2->select_db(DB);
 		}
diff --git a/adminer/drivers/mongo.inc.php b/adminer/drivers/mongo.inc.php
index a64f214b..ebacdc1f 100644
--- a/adminer/drivers/mongo.inc.php
+++ b/adminer/drivers/mongo.inc.php
@@ -421,10 +421,10 @@ if (isset($_GET["mongo"])) {
 		return $credentials[1];
 	}
 
-	function connect() {
+	function connect($credentials) {
 		global $adminer;
 		$connection = new Db;
-		list($server, $username, $password) = $adminer->credentials();
+		list($server, $username, $password) = $credentials;
 
 		if ($server == "") {
 			$server = "localhost:27017";
diff --git a/adminer/drivers/mssql.inc.php b/adminer/drivers/mssql.inc.php
index ea7067bd..6c97323a 100644
--- a/adminer/drivers/mssql.inc.php
+++ b/adminer/drivers/mssql.inc.php
@@ -280,15 +280,11 @@ if (isset($_GET["mssql"])) {
 		return ($_GET["ns"] != "" ? idf_escape($_GET["ns"]) . "." : "") . idf_escape($idf);
 	}
 
-	function connect() {
-		global $adminer;
+	function connect($credentials) {
 		$connection = new Db;
-		$credentials = $adminer->credentials();
-
 		if ($credentials[0] == "") {
 			$credentials[0] = "localhost:1433";
 		}
-
 		if ($connection->connect($credentials[0], $credentials[1], $credentials[2])) {
 			return $connection;
 		}
diff --git a/adminer/drivers/mysql.inc.php b/adminer/drivers/mysql.inc.php
index 78df8232..6878f101 100644
--- a/adminer/drivers/mysql.inc.php
+++ b/adminer/drivers/mysql.inc.php
@@ -421,12 +421,11 @@ if (!defined('Adminer\DRIVER')) {
 	}
 
 	/** Connect to the database
+	* @param array [$server, $username, $password]
 	* @return mixed Db or string for error
 	*/
-	function connect() {
-		global $adminer;
+	function connect($credentials) {
 		$connection = new Db;
-		$credentials = $adminer->credentials();
 		if ($connection->connect($credentials[0], $credentials[1], $credentials[2])) {
 			$connection->set_charset(charset($connection)); // available in MySQLi since PHP 5.0.5
 			$connection->query("SET sql_quote_show_create = 1, autocommit = 1");
diff --git a/adminer/drivers/oracle.inc.php b/adminer/drivers/oracle.inc.php
index 009c8a99..86f52e51 100644
--- a/adminer/drivers/oracle.inc.php
+++ b/adminer/drivers/oracle.inc.php
@@ -211,10 +211,8 @@ if (isset($_GET["oracle"])) {
 		return idf_escape($idf);
 	}
 
-	function connect() {
-		global $adminer;
+	function connect($credentials) {
 		$connection = new Db;
-		$credentials = $adminer->credentials();
 		if ($connection->connect($credentials[0], $credentials[1], $credentials[2])) {
 			return $connection;
 		}
diff --git a/adminer/drivers/pgsql.inc.php b/adminer/drivers/pgsql.inc.php
index cf9f63c6..354b6192 100644
--- a/adminer/drivers/pgsql.inc.php
+++ b/adminer/drivers/pgsql.inc.php
@@ -312,10 +312,8 @@ if (isset($_GET["pgsql"])) {
 		return idf_escape($idf);
 	}
 
-	function connect() {
-		global $adminer;
+	function connect($credentials) {
 		$connection = new Db;
-		$credentials = $adminer->credentials();
 		if ($connection->connect($credentials[0], $credentials[1], $credentials[2])) {
 			if (min_version(9, 0, $connection)) {
 				$connection->query("SET application_name = 'Adminer'");
diff --git a/adminer/drivers/sqlite.inc.php b/adminer/drivers/sqlite.inc.php
index 8d0e10d6..ee75d48d 100644
--- a/adminer/drivers/sqlite.inc.php
+++ b/adminer/drivers/sqlite.inc.php
@@ -190,9 +190,8 @@ if (isset($_GET["sqlite"])) {
 		return idf_escape($idf);
 	}
 
-	function connect() {
-		global $adminer;
-		list(, , $password) = $adminer->credentials();
+	function connect($credentials) {
+		list(, , $password) = $credentials;
 		if ($password != "") {
 			return lang('Database does not support password.');
 		}
diff --git a/adminer/include/auth.inc.php b/adminer/include/auth.inc.php
index 965b54f8..9244d28d 100644
--- a/adminer/include/auth.inc.php
+++ b/adminer/include/auth.inc.php
@@ -163,7 +163,7 @@ if (isset($_GET["username"]) && is_string(get_password())) {
 		auth_error(lang('Connecting to privileged ports is not allowed.'));
 	}
 	check_invalid_login();
-	$connection = connect();
+	$connection = connect($adminer->credentials());
 	$driver = new Driver($connection);
 	if ($adminer->operators === null) {
 		$adminer->operators = $driver->operators;
diff --git a/adminer/include/functions.inc.php b/adminer/include/functions.inc.php
index 18734af9..c386aa6b 100644
--- a/adminer/include/functions.inc.php
+++ b/adminer/include/functions.inc.php
@@ -1302,7 +1302,7 @@ function slow_query($query) {
 	$db = $adminer->database();
 	$timeout = $adminer->queryTimeout();
 	$slow_query = $driver->slowQuery($query, $timeout);
-	if (!$slow_query && support("kill") && is_object($connection2 = connect()) && ($db == "" || $connection2->select_db($db))) {
+	if (!$slow_query && support("kill") && is_object($connection2 = connect($adminer->credentials())) && ($db == "" || $connection2->select_db($db))) {
 		$kill = $connection2->result(connection_id()); // MySQL and MySQLi can use thread_id but it's not in PDO_MySQL
 		?>
 <script<?php echo nonce(); ?>>
diff --git a/adminer/sql.inc.php b/adminer/sql.inc.php
index 28884a7f..593cd63f 100644
--- a/adminer/sql.inc.php
+++ b/adminer/sql.inc.php
@@ -52,7 +52,7 @@ if (!$error && $_POST) {
 		$delimiter = ";";
 		$offset = 0;
 		$empty = true;
-		$connection2 = connect(); // connection for exploring indexes and EXPLAIN (to not replace FOUND_ROWS()) //! PDO - silent error
+		$connection2 = connect($adminer->credentials()); // connection for exploring indexes and EXPLAIN (to not replace FOUND_ROWS()) //! PDO - silent error
 		if (is_object($connection2) && DB != "") {
 			$connection2->select_db(DB);
 			if ($_GET["ns"] != "") {
diff --git a/plugins/drivers/clickhouse.php b/plugins/drivers/clickhouse.php
index ae6854f1..b1ab4647 100644
--- a/plugins/drivers/clickhouse.php
+++ b/plugins/drivers/clickhouse.php
@@ -234,10 +234,9 @@ if (isset($_GET["clickhouse"])) {
 		return apply_queries("DROP TABLE", $tables);
 	}
 
-	function connect() {
-		$adminer = adminer();
+	function connect($credentials) {
 		$connection = new Db;
-		list($server, $username, $password) = $adminer->credentials();
+		list($server, $username, $password) = $credentials;
 		if (!preg_match('~^(https?://)?[-a-z\d.]+(:\d+)?$~', $server)) {
 			return lang('Invalid server.');
 		}
diff --git a/plugins/drivers/elastic.php b/plugins/drivers/elastic.php
index 465cedb3..151b2332 100644
--- a/plugins/drivers/elastic.php
+++ b/plugins/drivers/elastic.php
@@ -286,10 +286,10 @@ if (isset($_GET["elastic"])) {
 		}
 	}
 
-	function connect() {
+	function connect($credentials) {
 		$connection = new Db;
 
-		list($server, $username, $password) = adminer()->credentials();
+		list($server, $username, $password) = $credentials;
 		if (!preg_match('~^(https?://)?[-a-z\d.]+(:\d+)?$~', $server)) {
 			return lang('Invalid server.');
 		}
diff --git a/plugins/drivers/elastic5.php b/plugins/drivers/elastic5.php
index f2301dff..ca536929 100644
--- a/plugins/drivers/elastic5.php
+++ b/plugins/drivers/elastic5.php
@@ -273,10 +273,10 @@ if (isset($_GET["elastic5"])) {
 		}
 	}
 
-	function connect() {
+	function connect($credentials) {
 		$connection = new Db;
 
-		list($server, $username, $password) = adminer()->credentials();
+		list($server, $username, $password) = $credentials;
 		if (!preg_match('~^(https?://)?[-a-z\d.]+(:\d+)?$~', $server)) {
 			return lang('Invalid server.');
 		}
diff --git a/plugins/drivers/firebird.php b/plugins/drivers/firebird.php
index e2c7309a..2e22084d 100644
--- a/plugins/drivers/firebird.php
+++ b/plugins/drivers/firebird.php
@@ -131,10 +131,8 @@ if (isset($_GET["firebird"])) {
 		return idf_escape($idf);
 	}
 
-	function connect() {
-		$adminer = adminer();
+	function connect($credentials) {
 		$connection = new Db;
-		$credentials = $adminer->credentials();
 		if ($connection->connect($credentials[0], $credentials[1], $credentials[2])) {
 			return $connection;
 		}
diff --git a/plugins/drivers/simpledb.php b/plugins/drivers/simpledb.php
index 241d1774..36cfb820 100644
--- a/plugins/drivers/simpledb.php
+++ b/plugins/drivers/simpledb.php
@@ -251,9 +251,8 @@ if (isset($_GET["simpledb"])) {
 
 
 
-	function connect() {
-		$adminer = adminer();
-		list($host, , $password) = $adminer->credentials();
+	function connect($credentials) {
+		list($host, , $password) = $credentials;
 		if (!preg_match('~^(https?://)?[-a-z\d.]+(:\d+)?$~', $host)) {
 			return lang('Invalid server.');
 		}