PHP 4.0.1 released

The PHP group is happy to announce the availability of PHP 4.0.1.  PHP 
4.0.1 is the first maintenance release for PHP 4.0 released last month, and 
includes improved performance, new features and many bug fixes.

All users of previous versions of PHP (both 4.0 and 3.0), are encouraged to 
upgrade to PHP 4.0.1.

Most notable in this maintenance release is the improved stability of the 
Windows build, both due to an improved thread-safe version, and additional 
non related fixes and improvements.  Many fixes and enhancements were made 
to non Windows-specific code as well, so users of various UNIX variants are 
also encouraged to upgrade.

A full list of changes is enclosed.

Zeev


28 Jun 2000, Version 4.0.1
- Fixed a possible crash in the LDAP modify code. (Eric Kilfoil)
- Fixed a bug in opendir(), which prevented readdir() from working properly if
   the $dir argument wasn't explicitly specified (Zeev)
- Made --enable-discard-path work again. (Andi)
- Removed 8KB limit on line length of the file() function (Zeev)
- Disabled dl() when PHP is being used as a module inside a multithreaded web
   server - it didn't work before, and caused weird results (Zeev)
- Added the ImageColorClosestHWB(), ImageCopyMerge() and ImagePaletteCopy()
   functions. (Sterling)
- Added ImageCreateFromWBMP() function. (Jouni)
- Fixed problems with POST requests under the NSAPI module. (Roberto Biancardi)
- Added spliti() function. (Thies)
- Fixed serializer behaviour with regards to serializing objects whose class
   definition was not available in the deserializing context. (Sascha)
- Improve memory cache performance and increase cache size. (Stas, Zend Engine)
- Added a crc32 checksum function - used by the UdmSearch search engine
   and currently run through a system call.  This will speed up the UdmSearch
   php frontend significantly. (Rasmus)
- Modified in_array() to not touch array pointer. (Andrei)
- Added restore_error_handler(). (Zeev, Zend engine)
- Fixed erroneous file names and line numbers in error situations under the
   multithreaded version of PHP - most noticeably Win32 (Zeev, Zend Engine)
- Fixed problem with CGI crashing on certain servers especially Windows Apache
   & O'Reilly website (Andi)
- Added Pi3Web SAPI module; run ./configure --with-pi3web to enable this.
   (Holger; [email protected])
- Enhanced WDDX functions to call __sleep() and __wakeup() when working on
   objects. (Andrei)
- Changed WDDX to serialize arrays as structs only if needed. (Thies)
- Implemented max_execution_time under Win32 (Zeev)
- Updated strtotime() to handle many more formats. It now has complete
   feature parity with GNU date command. (Andrei)
- Added support for multiple arguments in unset(). (Faisal, Zend Engine)
- Functions that expect a resource but are passed something else now return
   NULL instead of FALSE. (Thies, Zend Engine)
- Fixed gmmktime(), on certain systems it incorrectly adjusted for the timezone
   offset and daylight savings time. (Andrei)
- Moved VC++ Win32 project and workspace files to the win32 directory
   (Zeev)
- Fixed checkdate() to not return true on non-numeric arguments (Rasmus)
- Added --enable-c9x-inline option for compilers which support the new C9x
   standard. If you encounter undefined references to i_zend_is_true and
   other symbols, you should enable this.  (Sascha, Zend Library)
- Fixed a problem in ldap_add() and ldap_modify(), sometimes added trailing
   garbage to the values (Stig Venaas)
- Fixed a problem with dbmopen() not handing 'c' correctly with dbm/db/ndbm
   databases. (JimJag)
- Fixed a crash in number_format() when used with locales. (Andrei)
- Fixed an initialization problem in the MS-SQL problem that could cause
   a crash in mssql_query() (Zeev)
- Upgraded PCRE to version 3.2 and fixed a bug when anchored pattern
   matched an empty string. (Andrei)
- Fixed a bug that prevented PHP from paying attention to the extension_dir
   directive with extensions that were loaded from the php.ini file (Zeev)
- Changed set_error_handler() to return the name of the previously defined
   error handler, if any (Zeev, Zend Engine)
- Declared <?php_track_vars?> officially dead.  It didn't work in PHP 4.0.0
   either, but now it's gone for good (Zeev)
- Make convert_cyr_string() binary safe and stop it from corrupting other
   PHP variables. (Andi)
- Added functions array_unique, array_intersect and array_diff (Stig Venaas)
- Fixed problem when using uninitialized values in comparisons with strings.
   They behave as empty strings again just like in PHP 3.
   (Andi & Zeev, Zend Engine)
- Fixed 'Z' flag in date() to adjust for daylight savings time. (Andrei)
- Fixed var_dump() not to modify the internal order of array elements (Zeev)
- Fixed stripcslashes() to remove to strip \ in unknown escapes instead of
   leaving it. (Andrei)
- Changed WDDX to always serialize arrays as structs. (Andrei)
- Fixed include_once() to issue a warning in case the supplied file name is
   not found (Zeev, Zend Engine)
- Fixed a bug in get_declared_classes() which could return the same class
   multiple times under certain circumstances (Zeev, Zend Engine)
- Fixed a bug in rawurldecode() that would cause in rawurldecode() corrupting
   its argument (Zeev)
- Parse errors (or other errors) in the php.ini files under Windows will no
   longer mess up the HTTP headers in CGI mode and are now displayed in a
   message box (Zeev)
- Fixed a crash in OCIFetchStatement() when trying to read after all data
   has already been read. (Thies)
- fopen_wrappers() are now extensible via modules (Hartmut Holzgraefe)
- Make trim strip \0 to match php 3 (Rasmus)
- Added function imagecreatefromxbm(). (Jouni)
- Added function imagewbmp(). (Jouni, based on patch from Rune Nordbøe
   Skillingstad)
- Added str_pad() for padding a string with an arbitrary string on left or
   right. (Andrei)
- Made the short_tags, asp_tags and allow_call_time_pass_reference INI
   directives work on a per-directory basis as well, e.g. from .htaccess
   files. (Zeev)
- Added fflush() function. (Eric Huss)
- Fixed a problem with static variables, default function arguments and class
   member variables, that contained array values. (Andi & Zeev, Zend Engine)
- Fix virtual() when used with output buffering (Marc Pohl)
- Clean up constants in flock() function and add optional 3rd arg which
   is set to true on EWOULDBLOCK (Rasmus)
- Added functions pg_loimport(), pg_loexport(). (Jouni)
- Added SWF support to getimagesize() function (Derick Rethans)
- Added support for both indexed and non-indexed arrays of file uploads
   eg. name="file[]" type="file" (Rasmus)
- Added create_function(), which gives the ability to create functions
   on-the-fly (Zeev, Zend Engine)
- Added support for comparisons of arrays (with arrays) and objects (with
   objects);  The equality operator (==) performs an unordered comparison,
   whereas the identity operator (===) performs an ordered comparison (Zeev,
   Zend Engine)
- Allow all functions that receive user-defined function callbacks to accept
   an array that contains an object and a method name, in place of a function
   name, e.g. usort($array, array($obj, "ObjSort")) (Zeev, Zend Engine)
- Added set_error_handler() to allow custom error handling functions,
   instead of the built-in error handling code (Zeev, Zend Engine)
- Renamed user_error() to trigger_error();  user_error() remains
   defined for compatibility (Zeev, Zend Engine)
- Fix the global/static statements to require a trailing terminating
   semi-colon ';'. (Andi, Zend Engine)
- Cleaned up PCRE extension and made it binary-safe. (Andrei)
- Added third argument to in_array(). If it's true, then in_array()
   will use strict comparison instead of the default one. (Andrei)
- Added pg_trace() and pg_untrace (Dominic J. Eidson & Zeev)
- ignore_user_abort=Off is now default. (Thies)
- Added array_merge_recursive() that will recursively merge values
   under the same keys. (Andrei)
- fixed crash in OCIParse when parsing invalid SQL. (Thies)
- Fixed a bug in mysql_connect() that made it ignore the socket argument, in
   case of non-persistent connects (Zeev)
- Added disable_functions php.ini directive, to allow administrators to disable
   certain functions for security reasons (Zeev)
- Fixed sessions on Win32. When setting the directory depth parameter in
   save_path you need to now delimit it with a ';' instead of ':', e.g
   "5;/tmp" instead of "5:/tmp" (Andi)
- Changed the Apache handler's return status to 'Declined' when a requested
   PHP file could not be found.  Returning 'Not Found' caused problems
   in the ErrorDocument handler stage in that $REDIRECT_REDIRECT_ERROR_NOTES
   was not getting set at all.  Moving to 'Declined' should fix this and I
   can't see any other side effects.  (Rasmus)
- Fixed scanning decimal numbers in internationalized environments. They should
   always be in standard US format e.g. 23.3. (Andi, Zend Engine)
- Added second argument to preg_quote() which allows quoting of
   one additional character, usually the regex delimiter. (Andrei)
- Uncommitted outstanding OCI8 transactions are now rolled back
   before the connection is closed. (Thies)
- ignore_user_abort() & friends should now work in CGI mode as well.
   (Patch by [email protected])
- Added extension YAZ (dickmeiss).
- Fixed a crash bug triggered by certain cases of class redeclarations
   (Stanislav & Zeev, Zend Engine)
- Fixed min()/max() segfault. (Andrei)
- New module for reading EXIF header data from JPEG files.  Most digital
   cameras will embed all sorts of information about a picture inside the
   jpeg images it generates.  (Rasmus)
- Fixed basename() bug where "file.ext///" would not return the same
   as "/path/file.ext///" (Rasmus)
- Added the swf_ortho function. (Sterling)
- Moved to virtual current working directory support. This highly improves the
   functionality and stability of multi-threaded versions of PHP (Andi, Sascha)
--
Zeev Suraski   <[email protected]>  http://www.zend.com/