diff --git a/db_create.php b/db_create.php
index 84ef1a55fd..27bf279e54 100644
--- a/db_create.php
+++ b/db_create.php
@@ -14,7 +14,7 @@ $GLOBALS['js_include'][] = 'jquery/jquery-ui-1.8.custom.js';
 
 require_once './libraries/mysql_charsets.lib.php';
 if (!PMA_DRIZZLE) {
-    require './libraries/replication.inc.php';
+    include './libraries/replication.inc.php';
 }
 require './libraries/build_html_for_db.lib.php';
 
@@ -54,8 +54,8 @@ if (! $result) {
         PMA_ajaxResponse($message, false);
     }
 
-    require_once './libraries/header.inc.php';
-    require_once './main.php';
+    include_once './libraries/header.inc.php';
+    include_once './main.php';
 } else {
     $message = PMA_Message::success(__('Database %1$s has been created.'));
     $message->addParam($new_db);
@@ -125,7 +125,7 @@ if (! $result) {
         PMA_ajaxResponse($message, true, $extra_data);
     }
 
-    require_once './libraries/header.inc.php';
-    require_once './' . $cfg['DefaultTabDatabase'];
+    include_once './libraries/header.inc.php';
+    include_once './' . $cfg['DefaultTabDatabase'];
 }
 ?>
diff --git a/db_datadict.php b/db_datadict.php
index fc5de9046c..c9b5560642 100644
--- a/db_datadict.php
+++ b/db_datadict.php
@@ -11,8 +11,8 @@
 require_once './libraries/common.inc.php';
 
 if (! isset($selected_tbl)) {
-    require './libraries/db_common.inc.php';
-    require './libraries/db_info.inc.php';
+    include './libraries/db_common.inc.php';
+    include './libraries/db_info.inc.php';
 }
 
 
diff --git a/db_export.php b/db_export.php
index f8a4762d0e..5c880dd100 100644
--- a/db_export.php
+++ b/db_export.php
@@ -28,7 +28,7 @@ $export_page_title = __('View dump (schema) of database');
 // exit if no tables in db found
 if ($num_tables < 1) {
     PMA_Message::error(__('No tables found in database.'))->display();
-    require './libraries/footer.inc.php';
+    include './libraries/footer.inc.php';
     exit;
 } // end if
 
diff --git a/db_operations.php b/db_operations.php
index c9430d1352..77c2af7632 100644
--- a/db_operations.php
+++ b/db_operations.php
@@ -109,7 +109,7 @@ if (strlen($db) && (! empty($db_rename) || ! empty($db_copy))) {
         $views = array();
 
         // remove all foreign key constraints, otherwise we can get errors
-        require_once './libraries/export/sql.php';
+        include_once './libraries/export/sql.php';
         foreach ($tables_full as $each_table => $tmp) {
             $sql_constraints = '';
             $sql_drop_foreign_keys = '';
@@ -263,7 +263,7 @@ if (strlen($db) && (! empty($db_rename) || ! empty($db_copy))) {
             /**
              * cleanup pmadb stuff for this db
              */
-            require_once './libraries/relation_cleanup.lib.php';
+            include_once './libraries/relation_cleanup.lib.php';
             PMA_relationsCleanupDatabase($db);
 
             // if someday the RENAME DATABASE reappears, do not DROP
@@ -329,12 +329,12 @@ if (isset($_REQUEST['comment'])) {
  * because there is no table in the database ($is_info is true)
  */
 if (empty($is_info)) {
-    require './libraries/db_common.inc.php';
+    include './libraries/db_common.inc.php';
     $url_query .= '&amp;goto=db_operations.php';
 
     // Gets the database structure
     $sub_part = '_structure';
-    require './libraries/db_info.inc.php';
+    include './libraries/db_info.inc.php';
     echo "\n";
 
     if (isset($message)) {
@@ -372,7 +372,7 @@ if (!$is_information_schema) {
     }
     ?>
     <div class="operations_half_width">
-    <?php require './libraries/display_create_table.lib.php'; ?>
+    <?php include './libraries/display_create_table.lib.php'; ?>
     </div>
     <?php
     /**
diff --git a/db_qbe.php b/db_qbe.php
index 66d670b903..de09953cd2 100644
--- a/db_qbe.php
+++ b/db_qbe.php
@@ -26,7 +26,7 @@ if (isset($_REQUEST['submit_sql']) && ! empty($sql_query)) {
         $message_to_display = true;
     } else {
         $goto      = 'db_sql.php';
-        require './sql.php';
+        include './sql.php';
         exit;
     }
 }
@@ -99,7 +99,7 @@ $tbl_result     = PMA_DBI_query('SHOW TABLES FROM ' . PMA_backquote($db) . ';',
 $tbl_result_cnt = PMA_DBI_num_rows($tbl_result);
 if (0 == $tbl_result_cnt) {
     PMA_Message::error(__('No tables found in database.'))->display();
-    require './libraries/footer.inc.php';
+    include './libraries/footer.inc.php';
     exit;
 }
 
diff --git a/db_routines.php b/db_routines.php
index 6d22335f64..da92c226ec 100644
--- a/db_routines.php
+++ b/db_routines.php
@@ -13,9 +13,9 @@ require_once './libraries/common.inc.php';
 require_once './libraries/common.lib.php';
 require_once './libraries/mysql_charsets.lib.php';
 if (PMA_DRIZZLE) {
-    require_once './libraries/data_drizzle.inc.php';
+    include_once './libraries/data_drizzle.inc.php';
 } else {
-    require_once './libraries/data_mysql.inc.php';
+    include_once './libraries/data_mysql.inc.php';
 }
 
 /**
diff --git a/db_search.php b/db_search.php
index a9817ba2cc..88ae5d3a5b 100644
--- a/db_search.php
+++ b/db_search.php
@@ -93,7 +93,7 @@ if (empty($_REQUEST['field_str']) || ! is_string($_REQUEST['field_str'])) {
 $sub_part = '';
 
 if ( $GLOBALS['is_ajax_request'] != true) {
-    require './libraries/db_info.inc.php';
+    include './libraries/db_info.inc.php';
     echo '<div id="searchresults">';
 }
 
diff --git a/db_sql.php b/db_sql.php
index 38074e9769..2f495ac861 100644
--- a/db_sql.php
+++ b/db_sql.php
@@ -35,7 +35,7 @@ require './libraries/db_info.inc.php';
 if ($num_tables == 0 && empty($db_query_force)) {
     $sub_part   = '';
     $is_info    = true;
-    require './db_structure.php';
+    include './db_structure.php';
     exit();
 }
 
diff --git a/db_structure.php b/db_structure.php
index a7e7a2b31f..8673471ab0 100644
--- a/db_structure.php
+++ b/db_structure.php
@@ -31,21 +31,21 @@ if (empty($is_info)) {
         // -> db_structure.php and if we got an error on the multi submit,
         // we must display it here and not call again mult_submits.inc.php
         if (! isset($error) || false === $error) {
-            require './libraries/mult_submits.inc.php';
+            include './libraries/mult_submits.inc.php';
         }
         if (empty($message)) {
             $message = PMA_Message::success();
         }
     }
-    require './libraries/db_common.inc.php';
+    include './libraries/db_common.inc.php';
     $url_query .= '&amp;goto=db_structure.php';
 
     // Gets the database structure
     $sub_part = '_structure';
-    require './libraries/db_info.inc.php';
+    include './libraries/db_info.inc.php';
 
     if (!PMA_DRIZZLE) {
-        require './libraries/replication.inc.php';
+        include './libraries/replication.inc.php';
     } else {
         $server_slave_status = false;
     }
@@ -66,13 +66,13 @@ if ($num_tables == 0) {
     echo '<p>' . __('No tables found in database') . '</p>' . "\n";
 
     if (empty($db_is_information_schema)) {
-        require './libraries/display_create_table.lib.php';
+        include './libraries/display_create_table.lib.php';
     } // end if (Create Table dialog)
 
     /**
      * Displays the footer
      */
-    require_once './libraries/footer.inc.php';
+    include_once './libraries/footer.inc.php';
     exit;
 }
 
@@ -572,7 +572,7 @@ echo __('Data Dictionary') . '</a>';
 echo '</p>';
 
 if (empty($db_is_information_schema)) {
-    require './libraries/display_create_table.lib.php';
+    include './libraries/display_create_table.lib.php';
 } // end if (Create Table dialog)
 
 /**
diff --git a/db_tracking.php b/db_tracking.php
index 29d8cc85b1..fd4f7ed6fb 100644
--- a/db_tracking.php
+++ b/db_tracking.php
@@ -17,7 +17,7 @@ $GLOBALS['js_include'][] = 'db_structure.js';
  * If we are not in an Ajax request, then do the common work and show the links etc.
  */
 if ($GLOBALS['is_ajax_request'] != true) {
-    require './libraries/db_common.inc.php';
+    include './libraries/db_common.inc.php';
 }
 $url_query .= '&amp;goto=tbl_tracking.php&amp;back=db_tracking.php';
 
@@ -48,11 +48,11 @@ if ($num_tables == 0 && count($data['ddlog']) == 0) {
     echo '<p>' . __('No tables found in database.') . '</p>' . "\n";
 
     if (empty($db_is_information_schema)) {
-        require './libraries/display_create_table.lib.php';
+        include './libraries/display_create_table.lib.php';
     }
 
     // Display the footer
-    require './libraries/footer.inc.php';
+    include './libraries/footer.inc.php';
     exit;
 }