8 files changed, 35 insertions, 9 deletions
diff --git a/phpBB/phpbb/db/driver/driver.php b/phpBB/phpbb/db/driver/driver.php
index 5f06cb08fc..30cb667344 100644
--- a/phpBB/phpbb/db/driver/driver.php
+++ b/phpBB/phpbb/db/driver/driver.php
@@ -1012,7 +1012,7 @@ abstract class driver implements driver_interface
 	*/
 	function sql_report($mode, $query = '')
 	{
-		global $cache, $starttime, $phpbb_root_path, $phpbb_path_helper, $user;
+		global $cache, $starttime, $phpbb_root_path, $phpbb_path_helper;
 		global $request;
 
 		if (is_object($request) && !$request->variable('explain', false))
diff --git a/phpBB/phpbb/db/driver/oracle.php b/phpBB/phpbb/db/driver/oracle.php
index 89e1b68aac..54238a15ef 100644
--- a/phpBB/phpbb/db/driver/oracle.php
+++ b/phpBB/phpbb/db/driver/oracle.php
@@ -84,8 +84,6 @@ class oracle extends \phpbb\db\driver\driver
 		* but I assume its because the Oracle extension provides a direct method to access it
 		* without a query.
 		*/
-
-		$use_cache = false;
 /*
 		global $cache;
 
diff --git a/phpBB/phpbb/db/extractor/oracle_extractor.php b/phpBB/phpbb/db/extractor/oracle_extractor.php
index 05f7b8ac95..79a991889b 100644
--- a/phpBB/phpbb/db/extractor/oracle_extractor.php
+++ b/phpBB/phpbb/db/extractor/oracle_extractor.php
@@ -192,8 +192,6 @@ class oracle_extractor extends base_extractor
 			$ary_name[$i] = ocicolumnname($result, $i + 1);
 		}
 
-		$sql_data = '';
-
 		while ($row = $this->db->sql_fetchrow($result))
 		{
 			$schema_vals = $schema_fields = array();
diff --git a/phpBB/phpbb/db/migration/data/v30x/release_3_0_5_rc1.php b/phpBB/phpbb/db/migration/data/v30x/release_3_0_5_rc1.php
index 9f6e3efb91..084d00a13a 100644
--- a/phpBB/phpbb/db/migration/data/v30x/release_3_0_5_rc1.php
+++ b/phpBB/phpbb/db/migration/data/v30x/release_3_0_5_rc1.php
@@ -118,7 +118,7 @@ class release_3_0_5_rc1 extends container_aware_migration
 				$result = $this->db->sql_query($sql);
 
 				// Skip first row, this is our original auth option we want to preserve
-				$row = $this->db->sql_fetchrow($result);
+				$this->db->sql_fetchrow($result);
 
 				while ($row = $this->db->sql_fetchrow($result))
 				{
diff --git a/phpBB/phpbb/db/migration/data/v31x/update_custom_bbcodes_with_idn.php b/phpBB/phpbb/db/migration/data/v31x/update_custom_bbcodes_with_idn.php
index 854ed1f568..14b7b7b0f6 100644
--- a/phpBB/phpbb/db/migration/data/v31x/update_custom_bbcodes_with_idn.php
+++ b/phpBB/phpbb/db/migration/data/v31x/update_custom_bbcodes_with_idn.php
@@ -45,7 +45,6 @@ class update_custom_bbcodes_with_idn extends \phpbb\db\migration\migration
 		$sql_ary = array();
 		while ($row = $this->db->sql_fetchrow($result))
 		{
-			$data = array();
 			if (preg_match('/(URL|LOCAL_URL|RELATIVE_URL)/', $row['bbcode_match']))
 			{
 				$data = $bbcodes->build_regexp($row['bbcode_match'], $row['bbcode_tpl']);
diff --git a/phpBB/phpbb/db/migration/data/v31x/v317pl1.php b/phpBB/phpbb/db/migration/data/v31x/v317pl1.php
new file mode 100644
index 0000000000..2e1b0e9b9d
--- /dev/null
+++ b/phpBB/phpbb/db/migration/data/v31x/v317pl1.php
@@ -0,0 +1,31 @@
+<?php
+/**
+*
+* This file is part of the phpBB Forum Software package.
+*
+* @copyright (c) phpBB Limited <https://www.phpbb.com>
+* @license GNU General Public License, version 2 (GPL-2.0)
+*
+* For full copyright and license information, please see
+* the docs/CREDITS.txt file.
+*
+*/
+
+namespace phpbb\db\migration\data\v31x;
+
+class v317pl1 extends \phpbb\db\migration\migration
+{
+	static public function depends_on()
+	{
+		return array(
+			'\phpbb\db\migration\data\v31x\v317',
+		);
+	}
+
+	public function update_data()
+	{
+		return array(
+			array('config.update', array('version', '3.1.7-pl1')),
+		);
+	}
+}
diff --git a/phpBB/phpbb/db/migrator.php b/phpBB/phpbb/db/migrator.php
index a809bc14f9..d91860949a 100644
--- a/phpBB/phpbb/db/migrator.php
+++ b/phpBB/phpbb/db/migrator.php
@@ -535,7 +535,7 @@ class migrator
 					}
 
 					// Reverse the step that was run
-					$result = $this->run_step($reverse_step, false, !$revert);
+					$this->run_step($reverse_step, false, !$revert);
 				}
 
 				// rethrow the exception
diff --git a/phpBB/phpbb/db/tools/tools.php b/phpBB/phpbb/db/tools/tools.php
index 1d7b2ddfff..f06871a1d7 100644
--- a/phpBB/phpbb/db/tools/tools.php
+++ b/phpBB/phpbb/db/tools/tools.php
@@ -1116,7 +1116,7 @@ class tools implements tools_interface
 		}
 
 		// Get type
-		list($column_type, $orig_column_type) = $this->get_column_type($column_data[0]);
+		list($column_type) = $this->get_column_type($column_data[0]);
 
 		// Adjust default value if db-dependent specified
 		if (is_array($column_data[1]))