3 files changed, 4 insertions, 14 deletions
diff --git a/phpBB/phpbb/search/fulltext_native.php b/phpBB/phpbb/search/fulltext_native.php
index 3a74955a18..521eebb7ee 100644
--- a/phpBB/phpbb/search/fulltext_native.php
+++ b/phpBB/phpbb/search/fulltext_native.php
@@ -352,9 +352,6 @@ class fulltext_native extends \phpbb\search\base
 		$this->must_not_contain_ids = array();
 		$this->must_exclude_one_ids = array();
 
-		$mode = '';
-		$ignore_no_id = true;
-
 		foreach ($query as $word)
 		{
 			if (empty($word))
@@ -597,7 +594,6 @@ class fulltext_native extends \phpbb\search\base
 		$id_ary = array();
 
 		$sql_where = array();
-		$group_by = false;
 		$m_num = 0;
 		$w_num = 0;
 
@@ -1328,7 +1324,6 @@ class fulltext_native extends \phpbb\search\base
 		$match[] = '#\[\/?[a-z0-9\*\+\-]+(?:=.*?)?(?::[a-z])?(\:?[0-9a-z]{5,})\]#';
 
 		$min = $this->word_length['min'];
-		$max = $this->word_length['max'];
 
 		$isset_min = $min - 1;
 
@@ -1737,7 +1732,7 @@ class fulltext_native extends \phpbb\search\base
 	protected function cleanup($text, $allowed_chars = null, $encoding = 'utf-8')
 	{
 		static $conv = array(), $conv_loaded = array();
-		$words = $allow = array();
+		$allow = array();
 
 		// Convert the text to UTF-8
 		$encoding = strtolower($encoding);
diff --git a/phpBB/phpbb/search/fulltext_postgres.php b/phpBB/phpbb/search/fulltext_postgres.php
index ab28fd2957..42425cbc6b 100644
--- a/phpBB/phpbb/search/fulltext_postgres.php
+++ b/phpBB/phpbb/search/fulltext_postgres.php
@@ -501,7 +501,6 @@ class fulltext_postgres extends \phpbb\search\base
 		$sql_select			= ($type == 'posts') ? 'p.post_id' : 'DISTINCT t.topic_id';
 		$sql_from			= ($join_topic) ? TOPICS_TABLE . ' t, ' : '';
 		$field				= ($type == 'posts') ? 'post_id' : 'topic_id';
-		$sql_author			= (sizeof($author_ary) == 1) ? ' = ' . $author_ary[0] : 'IN (' . implode(', ', $author_ary) . ')';
 
 		if (sizeof($author_ary) && $author_name)
 		{
@@ -526,7 +525,6 @@ class fulltext_postgres extends \phpbb\search\base
 		$sql_where_options .= ($sort_days) ? ' AND p.post_time >= ' . (time() - ($sort_days * 86400)) : '';
 		$sql_where_options .= $sql_match_where;
 
-		$tmp_sql_match = array();
 		$sql_match = str_replace(',', " || ' ' ||", $sql_match);
 		$tmp_sql_match = "to_tsvector ('" . $this->db->sql_escape($this->config['fulltext_postgres_ts_name']) . "', " . $sql_match . ") @@ to_tsquery ('" . $this->db->sql_escape($this->config['fulltext_postgres_ts_name']) . "', '" . $this->db->sql_escape($this->tsearch_query) . "')";
 
@@ -838,7 +836,7 @@ class fulltext_postgres extends \phpbb\search\base
 					GROUP BY t.topic_id, $sort_by_sql[$sort_key]";
 			}
 
-			$result = $this->db->sql_query($sql_count);
+			$this->db->sql_query($sql_count);
 			$result_count = (int) $this->db->sql_fetchfield('result_count');
 
 			if (!$result_count)
diff --git a/phpBB/phpbb/search/fulltext_sphinx.php b/phpBB/phpbb/search/fulltext_sphinx.php
index 372a2792cf..504065e8cd 100644
--- a/phpBB/phpbb/search/fulltext_sphinx.php
+++ b/phpBB/phpbb/search/fulltext_sphinx.php
@@ -404,7 +404,7 @@ class fulltext_sphinx
 					$variable = $section->get_variable_by_name($key);
 					if (!$variable)
 					{
-						$variable = $section->create_variable($key, $value);
+						$section->create_variable($key, $value);
 					}
 					else
 					{
@@ -413,7 +413,7 @@ class fulltext_sphinx
 				}
 				else
 				{
-					$variable = $section->create_variable($key, $value);
+					$section->create_variable($key, $value);
 				}
 			}
 		}
@@ -437,7 +437,6 @@ class fulltext_sphinx
 			$match		= array('#\sand\s#i', '#\sor\s#i', '#\snot\s#i', '#\+#', '#-#', '#\|#', '#@#');
 			$replace	= array(' & ', ' | ', '  - ', ' +', ' -', ' |', '');
 
-			$replacements = 0;
 			$keywords = preg_replace($match, $replace, $keywords);
 			$this->sphinx->SetMatchMode(SPH_MATCH_EXTENDED);
 		}
@@ -490,8 +489,6 @@ class fulltext_sphinx
 
 		$id_ary = array();
 
-		$join_topic = ($type != 'posts');
-
 		// Sorting
 
 		if ($type == 'topics')