diff --git a/adminer/create.inc.php b/adminer/create.inc.php
index ede508a2..70c3fc69 100644
--- a/adminer/create.inc.php
+++ b/adminer/create.inc.php
@@ -83,17 +83,18 @@ if ($_POST && !process_fields($row["fields"]) && !$error) {
 		$partitioning = "";
 		if (support("partitioning")) {
 			if (isset($partition_by[$row["partition_by"]])) {
-				$params = array_filter($row, function ($key) {
-					return preg_match('~^partition~', $key);
-				}, ARRAY_FILTER_USE_KEY);
-
+				$params = array();
+				foreach ($row as $key => $val) {
+					if (preg_match('~^partition~', $key)) {
+						$params[$key] = $val;
+					}
+				}
 				foreach ($params["partition_names"] as $key => $name) {
 					if ($name == "") {
 						unset($params["partition_names"][$key]);
 						unset($params["partition_values"][$key]);
 					}
 				}
-
 				if ($params != get_partitions_info($TABLE)) {
 					$partitions = array();
 					if ($params["partition_by"] == 'RANGE' || $params["partition_by"] == 'LIST') {
@@ -102,7 +103,6 @@ if ($_POST && !process_fields($row["fields"]) && !$error) {
 							$partitions[] = "\n  PARTITION " . idf_escape($name) . " VALUES " . ($params["partition_by"] == 'RANGE' ? "LESS THAN" : "IN") . ($value != "" ? " ($value)" : " MAXVALUE"); //! SQL injection
 						}
 					}
-
 					// $params["partition"] can be expression, not only column
 					$partitioning .= "\nPARTITION BY $params[partition_by]($params[partition])";
 					if ($partitions) {
diff --git a/adminer/drivers/pgsql.inc.php b/adminer/drivers/pgsql.inc.php
index 7df77016..e6c3ca10 100644
--- a/adminer/drivers/pgsql.inc.php
+++ b/adminer/drivers/pgsql.inc.php
@@ -43,7 +43,10 @@ if (isset($_GET["pgsql"])) {
 			}
 
 			function quote($string) {
-				return pg_escape_literal($this->link, $string);
+				return (function_exists('pg_escape_literal')
+					? pg_escape_literal($this->link, $string) // available since PHP 5.4.4
+					: "'" . pg_escape_string($this->link, $string) . "'"
+				);
 			}
 
 			function value($val, $field) {
diff --git a/adminer/drivers/sqlite.inc.php b/adminer/drivers/sqlite.inc.php
index 151dbeed..804a85c4 100644
--- a/adminer/drivers/sqlite.inc.php
+++ b/adminer/drivers/sqlite.inc.php
@@ -78,7 +78,7 @@ if (isset($_GET["sqlite"])) {
 				);
 			}
 
-			function __desctruct() {
+			function __destruct() {
 				return $this->result->finalize();
 			}
 		}
diff --git a/adminer/include/bootstrap.inc.php b/adminer/include/bootstrap.inc.php
index ca5a7809..a08acf96 100644
--- a/adminer/include/bootstrap.inc.php
+++ b/adminer/include/bootstrap.inc.php
@@ -62,7 +62,6 @@ if (function_exists("get_magic_quotes_runtime") && get_magic_quotes_runtime()) {
 	set_magic_quotes_runtime(false);
 }
 @set_time_limit(0); // @ - can be disabled
-@ini_set("zend.ze1_compatibility_mode", false); // @ - deprecated
 @ini_set("precision", 15); // @ - can be disabled, 15 - internal PHP precision
 
 include "../adminer/include/lang.inc.php";
diff --git a/phpcs.xml b/phpcs.xml
index 56c71c35..d6b72fa8 100644
--- a/phpcs.xml
+++ b/phpcs.xml
@@ -108,4 +108,11 @@
 	<rule ref="Squiz.WhiteSpace.LanguageConstructSpacing"/>
 	<rule ref="Squiz.WhiteSpace.LogicalOperatorSpacing"/>
 	<rule ref="Squiz.WhiteSpace.ObjectOperatorSpacing"/>
+
+	<!--
+	This is slow and has false positives but it's useful occasionally.
+	https://github.com/PHPCompatibility/PHPCompatibility
+	<rule ref="PHPCompatibility"/>
+	<config name="testVersion" value="5.3-"/>
+	-->
 </ruleset>
diff --git a/plugins/drivers/simpledb.php b/plugins/drivers/simpledb.php
index 0ac5f3fd..488a10d2 100644
--- a/plugins/drivers/simpledb.php
+++ b/plugins/drivers/simpledb.php
@@ -422,7 +422,7 @@ if (isset($_GET["simpledb"])) {
 			'max_redirects' => 0,
 		))));
 		if (!$file) {
-			$this->error = lang('Invalid credentials.');
+			$connection->error = lang('Invalid credentials.');
 			return false;
 		}
 		libxml_use_internal_errors(true);