diff --git a/export.php b/export.php
index 3004dd5d4a..70aecccdbf 100644
--- a/export.php
+++ b/export.php
@@ -21,16 +21,16 @@ if (!defined('TESTSUITE')) {
     include_once 'libraries/zip.lib.php';
     include_once 'libraries/plugin_interface.lib.php';
     
-    //check if its the GET request to check export time out
+    //check if it's the GET request to check export time out
     if (isset($_GET['check_time_out'])) {
-        if(isset($_SESSION['pma_export_error'])) {
+        if (isset($_SESSION['pma_export_error'])) {
             $err = $_SESSION['pma_export_error'];
             unset($_SESSION['pma_export_error']);
             echo $err;
         } else {
             echo "success";
         }
-        return;
+        exit;
     }
     /**
      * Sets globals from $_POST
@@ -266,15 +266,21 @@ if (!defined('TESTSUITE')) {
     // We send fake headers to avoid browser timeout when buffering
     $time_start = time();
 }
+
+/**
+ * Sets a session variable upon a possible fatal error during export 
+ *
+ * @return void 
+ */
 function PMA_shutdown()
 {
-     $a = error_get_last();
-     if ($a != null && strpos($a['message'], "execution time")) {
-         //writting in partially downloaded file for future reference of user
-         print_r($a);
-         //set session variable to check if there was error while exporting
-         $_SESSION['pma_export_error'] = $a['message'];
-     }
+    $a = error_get_last();
+    if ($a != null && strpos($a['message'], "execution time")) {
+        //write in partially downloaded file for future reference of user
+        print_r($a);
+        //set session variable to check if there was error while exporting
+        $_SESSION['pma_export_error'] = $a['message'];
+    }
 }
 /**
  * Detect ob_gzhandler
diff --git a/js/export.js b/js/export.js
index 04901b1889..a16bd29221 100644
--- a/js/export.js
+++ b/js/export.js
@@ -216,7 +216,7 @@ function toggle_quick_or_custom()
 var time_out;
 function check_time_out(time_limit)
 {
-    //margin  of one second to avoid race condition to set/access session variable
+    //margin of one second to avoid race condition to set/access session variable
     time_limit = time_limit + 1;
     var href = "export.php";
     var params = {
@@ -227,16 +227,16 @@ function check_time_out(time_limit)
      clearTimeout(time_out);
      time_out = setTimeout(function(){        
          $.get(href, params, function (data) {
-            if(data['message'] !== 'success') {
+            if (data['message'] !== 'success') {
                 PMA_ajaxShowMessage(
-                '<div class="error">' +
-                PMA_messages.strTimeOutError +
-                '</div>',
-                false
+                    '<div class="error">' +
+                    PMA_messages.strTimeOutError +
+                    '</div>',
+                    false
                 );
             }
         });
-     },time_limit*1000);
+     }, time_limit * 1000);
      
 }
 AJAX.registerOnload('export.js', function () {
diff --git a/js/messages.php b/js/messages.php
index 4f28c68b47..9c9a8bd436 100644
--- a/js/messages.php
+++ b/js/messages.php
@@ -413,7 +413,9 @@ $js_messages['strErrorOccurred'] = __(
 $js_messages['strChangeReportSettings'] = __("Change Report Settings");
 $js_messages['strShowReportDetails'] = __("Show Report Details");
 $js_messages['strIgnore'] = __("Ignore");
-$js_messages['strTimeOutError'] = __("Your export is incomplete, due to a low execution time limit at the PHP level");
+$js_messages['strTimeOutError'] = __(
+    "Your export is incomplete, due to a low execution time limit at the PHP level"
+);
 echo "var PMA_messages = new Array();\n";
 foreach ($js_messages as $name => $js_message) {
     PMA_printJsValue("PMA_messages['" . $name . "']", $js_message);