diff --git a/libraries/common.lib.php b/libraries/common.lib.php
index 1607d6e286..27d99bca48 100644
--- a/libraries/common.lib.php
+++ b/libraries/common.lib.php
@@ -567,7 +567,7 @@ function PMA_mysqlDie($error_message = '', $the_query = '',
     } // end if
 
     if (!empty($error_message)) {
-        $error_message = preg_replace("@((\015\012)|(\015)|(\012)) {3,}@", "\n\n", $error_message);
+        $error_message = preg_replace("@((\015\012)|(\015)|(\012)){3,}@", "\n\n", $error_message);
     }
     // modified to show the help on error-returns
     // (now error-messages-server)
diff --git a/libraries/ip_allow_deny.lib.php b/libraries/ip_allow_deny.lib.php
index c8481ba764..2b969d1fbb 100644
--- a/libraries/ip_allow_deny.lib.php
+++ b/libraries/ip_allow_deny.lib.php
@@ -30,7 +30,7 @@ function PMA_getIp()
         $trusted_header_value = PMA_getenv($GLOBALS['cfg']['TrustedProxies'][$direct_ip]);
         $matches = array();
         // the $ checks that the header contains only one IP address, ?: makes sure the () don't capture
-        $is_ip = preg_match('|^(?:[0-9]{1,3}\.) {3,3}[0-9]{1,3}$|', $trusted_header_value, $matches);
+        $is_ip = preg_match('|^(?:[0-9]{1,3}\.){3,3}[0-9]{1,3}$|', $trusted_header_value, $matches);
         if ($is_ip && (count($matches) == 1)) {
             // True IP behind a proxy
             return $matches[0];
@@ -46,7 +46,7 @@ function PMA_getIp()
  * Based on IP Pattern Matcher
  * Originally by J.Adams <jna@retina.net>
  * Found on <http://www.php.net/manual/en/function.ip2long.php>
- * Modified for phpMyAdmin 
+ * Modified for phpMyAdmin
  *
  * Matches:
  * xxx.xxx.xxx.xxx        (exact)
diff --git a/libraries/sqlparser.lib.php b/libraries/sqlparser.lib.php
index 267d99b247..91ec780d4e 100644
--- a/libraries/sqlparser.lib.php
+++ b/libraries/sqlparser.lib.php
@@ -2725,7 +2725,7 @@ if (! defined('PMA_MINIMUM_COMMON')) {
     function PMA_SQP_formatNone($arr)
     {
         $formatted_sql = htmlspecialchars($arr['raw']);
-        $formatted_sql = preg_replace("@((\015\012)|(\015)|(\012)) {3,}@", "\n\n", $formatted_sql);
+        $formatted_sql = preg_replace("@((\015\012)|(\015)|(\012)){3,}@", "\n\n", $formatted_sql);
 
         return $formatted_sql;
     } // end of the "PMA_SQP_formatNone()" function