[PHP-CVS] cvs: php-src /ext/simplexml simplexml.c

zeev Wed Feb 11 14:15:34 2004 EDT

Modified files:
/php-src/ext/simplexml simplexml.c
Log:
Prevent SimpleXML from silently modifying types of variables that are
assigned to its objects.

Implementation notes for overloaded object modules:

• If you return a zval which is not otherwise referenced by the extension
  or the engine's symbol table, its reference count should be 0.
• If you receive a value zval in write_property/write_dimension, you
  may only modify it if its reference count is 1. Otherwise, you must
  create a copy of that zval before making any changes. You should NOT
  modify the reference count of the value passed to you.

Can you put it in OBJECTS2_HOWTO or somewhere similar? It really should
be well documented.

• Andrei