Changeset 43484

Timestamp:

07/17/2018 03:19:26 PM (6 years ago)

Author:

SergeyBiryukov

Message:

Streams: Return early from wp_is_stream() for paths that aren't streams.

Some versions of PHP appear to have a memory leak that is occasionally triggered by calling stream_get_wrappers(). In order to avoid calling this, we can return early from wp_is_stream() when $path doesn't contain ://.

Props pbiron, JPry, dontstealmyfish.
Merges [43466] to the 4.9 branch.
Fixes #44532.

Location:

branches/4.9

Files:

• . (modified) (1 prop)
• src/wp-includes/functions.php (modified) (1 diff)

branches/4.9/src/wp-includes/functions.php

@@ -5228 +5228 @@
  */
 function wp_is_stream( $path ) {
+    if ( false === strpos( $path, '://' ) ) {
+        // $path isn't a stream
+        return false;
+    }
+
     $wrappers    = stream_get_wrappers();
     $wrappers    = array_map( 'preg_quote', $wrappers );