From 53f9496a2f088623df29af442e5df8175962e285 Mon Sep 17 00:00:00 2001
From: Ryan Boren <ryan@boren.nu>
Date: Fri, 1 Mar 2013 16:34:48 +0000
Subject: [PATCH] Introduce wp_slash() and wp_unslash(). This will be used to
 cleanup the myriad calls to addslashes*, add_magic_quotes, stripslashes*. see
 #21767

git-svn-id: http://core.svn.wordpress.org/trunk@23555 1a063a9b-81f0-0310-95a4-ce76da25c4cd
---
 wp-includes/formatting.php | 42 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 42 insertions(+)

diff --git a/wp-includes/formatting.php b/wp-includes/formatting.php
index 162ded733c..659b689c8e 100644
--- a/wp-includes/formatting.php
+++ b/wp-includes/formatting.php
@@ -3342,3 +3342,45 @@ function sanitize_trackback_urls( $to_ping ) {
 	$urls_to_ping = implode( "\n", $urls_to_ping );
 	return apply_filters( 'sanitize_trackback_urls', $urls_to_ping, $to_ping );
 }
+
+/**
+ * Add slashes to a string or array of strings.
+ *
+ * This should be used when preparing data for core API that expects slashed data.
+ * This should not be used to escape data going directly into an SQL query.
+ *
+ * @since 3.6.0
+ *
+ * @param string|array $value String or array of strings to slash.
+ * @return string|array Slashed $value
+ */
+function wp_slash( $value ) {
+	if ( is_array( $value ) ) {
+		foreach ( $value as $k => $v ) {
+			if ( is_array( $v ) ) {
+				$value[$k] = wp_slash( $v );
+			} else {
+				$value[$k] = addslashes( $v );
+			}
+		}
+	} else {
+		$value = addslashes( $value );
+	}
+
+	return $value;
+}
+
+/**
+ * Remove slashes from a string or array of strings.
+ *
+ * This should be used to remove slashes from data passed to core API that
+ * expects data to be unslashed.
+ *
+ * @since 3.6.0
+ *
+ * @param string|array $value String or array of strings to unslash.
+ * @return string|array Unslashed $value
+ */
+function wp_unslash( $value ) {
+	return stripslashes_deep( $value );
+}
\ No newline at end of file