Fix PHP warnings "preg_replace(): [...] invalid range in character class"

[lhc/web/wiklou.git] / includes / media / FormatMetadata.php

diff --git a/includes/media/FormatMetadata.php b/includes/media/FormatMetadata.php
index 52d7373..9ebc63f 100644 (file)
--- a/includes/media/FormatMetadata.php
+++ b/includes/media/FormatMetadata.php
@@ -1859,9 +1859,9 @@ class FormatMetadata extends ContextSource {
                // drop all characters which are not valid in an XML tag name
                // a bunch of non-ASCII letters would be valid but probably won't
                // be used so we take the easy way
-               $key = preg_replace( '/[^a-zA-z0-9_:.-]/', '', $key );
+               $key = preg_replace( '/[^a-zA-z0-9_:.\-]/', '', $key );
                // drop characters which are invalid at the first position
-               $key = preg_replace( '/^[\d-.]+/', '', $key );
+               $key = preg_replace( '/^[\d\-.]+/', '', $key );
 
                if ( $key == '' ) {
                        $key = '_';