diff --git a/src/Environment.php b/src/Environment.php
index 979fcb0..d22fbc3 100755
--- a/src/Environment.php
+++ b/src/Environment.php
@@ -879,7 +879,7 @@ private function query_insert($query)
                 return $this->set_error('Invalid INSERT Query ');
             $result = $this->query_select($the_rest);
             $dataRows = [];
-            while (($values = $result->fetchRow()) !== false) {
+            while (($values = $result->fetchRow()) !== null) {
                 $row = array_map(
                     function ($value) {
                         if (is_string($value)) $value = "'$value'";
diff --git a/src/ResultSet.php b/src/ResultSet.php
index 797afd5..c409963 100644
--- a/src/ResultSet.php
+++ b/src/ResultSet.php
@@ -52,7 +52,7 @@ public function fetchAll($type = self::FETCH_ASSOC)
     public function fetchArray($type = self::FETCH_ASSOC)
     {
         if (!$this->dataCursor->valid()) {
-            return false;
+            return null;
         }
 
         $entry = $this->dataCursor->current();
@@ -86,14 +86,14 @@ public function fetchSingle($column = 0)
         $type = is_numeric($column) ? self::FETCH_NUM : self::FETCH_ASSOC;
         $row = $this->fetchArray($type);
 
-        return $row !== false && array_key_exists($column, $row) ? $row[$column] : false;
+        return $row !== null && array_key_exists($column, $row) ? $row[$column] : null;
     }
 
     public function fetchObject()
     {
         $row = $this->fetchAssoc();
-        if ($row === false) {
-            return false;
+        if ($row === null) {
+            return null;
         }
 
         return (object) $row;
diff --git a/tests/ResultSetTest.php b/tests/ResultSetTest.php
index b1a6faf..9988be2 100644
--- a/tests/ResultSetTest.php
+++ b/tests/ResultSetTest.php
@@ -53,7 +53,7 @@ public function testFetchAssoc()
         $results = new ResultSet(self::$columns, self::$entries);
 
         $i = 0;
-        while (($row = $results->fetchAssoc()) !== false) {
+        while (($row = $results->fetchAssoc()) !== null) {
             $this->assertEquals(array_combine(self::$columns, self::$entries[$i++]), $row);
         }
         $this->assertEquals(count(self::$entries), $i);
@@ -64,7 +64,7 @@ public function testFetchRow()
         $results = new ResultSet(self::$columns, self::$entries);
 
         $i = 0;
-        while (($row = $results->fetchRow()) !== false) {
+        while (($row = $results->fetchRow()) !== null) {
             $this->assertEquals(self::$entries[$i++], $row);
         }
         $this->assertEquals(count(self::$entries), $i);
@@ -75,7 +75,7 @@ public function testFetchBoth()
         $results = new ResultSet(self::$columns, self::$entries);
 
         $i = 0;
-        while (($row = $results->fetchBoth()) !== false) {
+        while (($row = $results->fetchBoth()) !== null) {
             $entry = self::$entries[$i++];
             $this->assertEquals(array_merge($entry, array_combine(self::$columns, $entry)), $row);
         }
@@ -85,7 +85,7 @@ public function testFetchBoth()
     public function testFetchSingleEmpty()
     {
         $results = new ResultSet(self::$columns, array());
-        $this->assertFalse($results->fetchSingle(5));
+        $this->assertnull($results->fetchSingle(5));
     }
 
     public function testFetchSingleIndex()
@@ -105,7 +105,7 @@ public function testFetchObject()
         $results = new ResultSet(self::$columns, self::$entries);
 
         $i = 0;
-        while (($row = $results->fetchObject()) !== false) {
+        while (($row = $results->fetchObject()) !== null) {
             $this->assertEquals((object) array_combine(self::$columns, self::$entries[$i++]), $row);
         }
         $this->assertEquals(count(self::$entries), $i);
@@ -124,7 +124,7 @@ public function testDataSeek()
         $results = new ResultSet(self::$columns, self::$entries);
 
         $success = $results->dataSeek(7);
-        $this->assertTrue($success !== false);
+        $this->assertTrue($success !== null);
 
         $row = $results->fetchRow();
         $this->assertEquals(self::$entries[7], $row);
diff --git a/tests/SQL/ShowTest.php b/tests/SQL/ShowTest.php
index a1c8665..5eceb0c 100644
--- a/tests/SQL/ShowTest.php
+++ b/tests/SQL/ShowTest.php
@@ -39,7 +39,7 @@ public function testShowDatabasesNone()
         $this->assertTrue($result !== false);
 
         $result = $this->fsql->fetch_row($result);
-        $this->assertEquals(false, $result);
+        $this->assertEquals(null, $result);
     }
 
     public function testShowDatabases()
@@ -65,7 +65,7 @@ public function testShowTablesNone()
         $this->assertTrue($result !== false);
 
         $result = $this->fsql->fetch_row($result);
-        $this->assertEquals(false, $result);
+        $this->assertEquals(null, $result);
     }
 
     public function testShowTables()