Changeset 44506

Timestamp:

01/09/2019 09:50:19 AM (8 years ago)

Author:

pento

Message:

Filesystem: Improve wp_is_stream() performance.

Instead of turning the return value of stream_get_wrappers() into a regex to match the scheme, we can instead extract the scheme and search the return value of stream_get_wrappers().

Props schlessera, swissspidy.
Fixes #45553.

File:

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

trunk/src/wp-includes/functions.php

@@ -5707 +5707 @@
  */
 function wp_is_stream( $path ) {
-        if ( false === strpos( $path, '://' ) ) {
+        $scheme_separator = strpos( $path, '://' );
+
+        if ( false === $scheme_separator ) {
                 // $path isn't a stream
                 return false;
         }
 
-        $wrappers    = stream_get_wrappers();
-        $wrappers    = array_map( 'preg_quote', $wrappers );
-        $wrappers_re = '(' . join( '|', $wrappers ) . ')';
-
-        return preg_match( "!^$wrappers_re://!", $path ) === 1;
+        $stream = substr( $path, 0, $scheme_separator );
+
+        return in_array( $stream, stream_get_wrappers(), true );
 }