From 3583696de72a68f67d5226c26af35d84405104b7 Mon Sep 17 00:00:00 2001
From: Andrew Nacin <nacin@git.wordpress.org>
Date: Thu, 25 Oct 2012 20:52:50 +0000
Subject: [PATCH] When replacing floats in wpdb::prepare(), avoid escaped
 placeholders (%%f). props SergeyBiryukov. fixes #19861.

git-svn-id: https://develop.svn.wordpress.org/trunk@22304 602fd350-edb4-49c9-b593-d223f7449a82
---
 wp-includes/wp-db.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/wp-includes/wp-db.php b/wp-includes/wp-db.php
index 466ab67b5e..1ca4c007c2 100644
--- a/wp-includes/wp-db.php
+++ b/wp-includes/wp-db.php
@@ -998,7 +998,7 @@ class wpdb {
 			$args = $args[0];
 		$query = str_replace( "'%s'", '%s', $query ); // in case someone mistakenly already singlequoted it
 		$query = str_replace( '"%s"', '%s', $query ); // doublequote unquoting
-		$query = str_replace( '%f' , '%F', $query ); // Force floats to be locale unaware
+		$query = preg_replace( '|(?<!%)%f|' , '%F', $query ); // Force floats to be locale unaware
 		$query = preg_replace( '|(?<!%)%s|', "'%s'", $query ); // quote the strings, avoiding escaped strings like %%s
 		array_walk( $args, array( $this, 'escape_by_ref' ) );
 		return @vsprintf( $query, $args );