June 28, 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; zimpel@t-online.de)
• 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 daniel.braun@ercom.fr)
• 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)