Changeset 17779

Timestamp:

04/30/2011 04:41:56 AM (14 years ago)

Author:

markjaquith

Message:

Speed optimizations for is_serialized_string(). fixes #17129

File:

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

trunk/wp-includes/functions.php

@@ -279 +279 @@
         return false;
     $data = trim( $data );
-    if ( preg_match( '/^s:[0-9]+:.*;$/s', $data ) ) // this should fetch all serialized strings
+    $length = strlen( $data );
+    if ( $length < 4 )
+        return false;
+    elseif ( ':' !== $data[1] )
+        return false;
+    elseif ( ';' !== $data[$length-1] )
+        return false;
+    elseif ( $data[0] !== 's' )
+        return false;
+    elseif ( '"' !== $data[$length-2] )
+        return false;
+    else
         return true;
-    return false;
 }