Things to do or at least think about doing in the future. Name in
parenthesis means that person has taken on this project.

Zend
----
    * allow foreach ($array as $k => &$val) syntax. right now we cannot 
      traverse an array without copying each element.
    * look at replacing c-lib call tolower().

global
------
    * always build the standalone executable as well as the chosen SAPI 
      target.
    * make sure all source files have the "right" copyright.
    * the following modules still use PHP3_TLS_*() macros (and thereby don't 
      work in ZTS mode): ext/dav/dav.c, ext/db/db.c, ext/gd/gd.c, ext/ldap/ldap.c
    * make sure that all ZTS globals get destructed. Most ts_allocate_id()
      calls should have a dtor entry.
    * activate all extensions by default that don't rely on external
      dependices. (eg ftp)
    * --enable-all in configure. (--enable-shared=max ...)
    * make configure print out a summary when it's done (like XEmacs)
    * replace standard functions which work on static data with 
      reentrancy-safe functions.
    * on some platforms unimplemented function will just do nothing (e.g. symlink)
      they should print a warning or not even be defined!
    * implement javadoc based function docs template system.
    * use thread-safe resolver functions (either require BIND 8 or adns).
    * provide optional IPv6 support.
    * make SAPI conform to CGI/1.1. Currently, all SAPI modules
      define REMOTE_ADDR etc. themselves and reach only various level
      of compliance.
    * find a better way to implement script timeouts. SIGVTALRM is used
      by some POSIX threads implementations (i.e. OpenBSD) and is not
      available in ZTS mode.
    * add aliases to functions to conform to new naming conventions, e.g.
      str_to_upper().

documentation
-------------
    * add remarks in the documentation which functions are not implemented on win32.
    * add remarks in the documentation which functions are not binary-safe.

ext/pcre
--------
    * have a non-greedy option for preg_replace().
    * have an option for preg_grep() to return keys as well.

ext/wddx
--------
    * implement __sleep() and __wakeup() the way serialize()/unserialize() do.
    * See if we can support the remaining datatypes:
        dateTime
        binary
        recordset

        http://www.wddx.org/WDDX_SDK_10a/7__References/WDDX_DTD.htm
        (Andrei)

    * implement wddx_packet_as_javascript(). (Andrei)

ext/dav
--------
    * rewrite.

ext/oci8
--------
    * all OCIFetch*() functions should return 0 for no more data and false on error.

ext/mcrypt
----------
    * port to mcrypt-2.6 or later

ext/standard
------------
    * add a version number to data serialized via serialize().
    * array_add(), array_rand(), array_uniq(). (Andrei)
    * implement pathinfo() (what the heck is it?)
    * possibly modify parsing of GPC data to automatically create arrays if
      variable name is seen more than once.
    * implement regex-cache for url-functions.
    * strpad(). (Andrei)
    * strcase_replace(). (Andrei)
    * comparing arrays semantically (like Python). (Andrei)
    * move socket related functions to fsock.c.
    * NOT binary safe:
        strtok()
        basename()
        dirname()
        strrpos()
        strrchr()
        strip_tags()

other cool stuff
----------------
    * PVM extension