new function 'get sanitized string from $_GET'

1 files changed, 12 insertions, 0 deletions

diff --git a/langs.inc.php b/langs.inc.php
index c578dd2ee..bb412f2b8 100644
--- a/langs.inc.php
+++ b/langs.inc.php
@@ -139,6 +139,18 @@ function locale_underscore_to_hyphen($locale)
 
 
 /**
+ * Returns sanitized specified $_GET variable by name if it exists and strip tags from it
+ *
+ * @param string name of a $_GET vaiable
+ *
+ * @return string sanitized string, empty on empty string or on error in filtering
+*/
+function get_sane_string($str){
+    return (string) filter_input(INPUT_GET, $str, FILTER_SANITIZE_STRING);
+}
+
+
+/**
 */
 function show_langs($langs)
 {