XDEBUG EXTENSION FOR PHP | UPDATES

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Updates

[2014-02-28] — Xdebug 2.2.4

Fixed bugs

Fixed bug #785: Profiler does not handle closures and call_user_func_array well.
Fixed bug #963: Xdebug waits too long for response from remote client
Fixed bug #976: XDebug crashes if current varibles scope contains COM object.
Fixed bug #978: Inspection of array with negative keys fails
Fixed bug #979: property_value -m 0 should mean all bytes, not 0 bytes
Fixed bug #987: Hidden property names not shown.
[2013-05-22] — Xdebug 2.2.3

Added features

Added support for PHP 5.5.

Fixed bugs

Fixed bug #923: Xdebug + Netbeans + ext/MongoDB crash on MongoCursor instance
Fixed bug #929: Directory name management in xdebug.profiler_output_dir
Fixed bug #931: xdebug_str_add does not check for NULL str before calling strlen on it
Fixed bug #935: Document the return value from xdebug_get_code_coverage()
Fixed bug #947: Newlines converted when html_errors = 0
[2013-03-23] — Xdebug 2.2.2

Fixed bugs

Fixed bug #598: Use HTTP_X_FORWARDED_FOR to determine remote debugger.
Fixed bug #625: xdebug_get_headers() -> Headers are reset unexpectedly.
Fixed bug #811: PHP Documentation Link.
Fixed bug #818: Require a php script in the PHP_RINIT causes Xdebug to crash.
Fixed bug #903: xdebug_get_headers() returns replaced headers.
Fixed bug #905: Support PHP 5.5 and generators.
Fixed bug #920: AM_CONFIG_HEADER is depreciated.
[2012-07-15] — Xdebug 2.2.1

Fixed bugs

Fixed bug #843: Text output depends on php locale.
Fixed bug #838/bug #839/bug #840: Debugging static properties crashes Xdebug.
Fixed bug #821: Variable assignments (beginning with =>) should be indented one more scope.
Fixed bug #811: PHP Documentation Link.
Fixed bug #800: var_dump(get_class(new foo\bar')) add an extra "\" in class name.
[2012-05-08] — Xdebug 2.2.0

Added features

Support for PHP 5.4.
Added ANSI colour output for the shell. (Including patches by Michael Maclean)
Added var_dump() overloading on the command line (bug #457).
Added better support for closures in stack and function traces.
Added the size of arrays to the overloaded variable output, so that you know how many elements there are.
Added support for X-HTTP-FORWARDED-FOR before falling back to REMOTE_ADDR (bug #660). (Patch by Hannes Magnusson)
Added the method call type to xdebug_get_function_stack() (bug #695).
Added extra information to error printouts to tell that the error suppression operator has been ignored due to xdebug.scream.
Added a error-specific CSS class to stack traces.

New settings

xdebug.cli_color for colouring output on the command line (Unix only).
Added xdebug.trace_enable_trigger to triger function traces through a GET/POST/COOKIE parameter (bug #517). (Patch by Patrick Allaert)
Added support for the 'U' format specifier for function trace and profiler filenames.

Changes

Improved performance by lazy-initializing data structures.
Improved code coverage performance. (Including some patches by Taavi Burns)
Improved compatibility with KCacheGrind.
Improved logging of remote debugging connections, by added connection success/failure logging to the xdebug.remote_log functionality.

Fixed bugs

Fixed bug #827: Enabling Xdebug causes phpt tests to fail because of var_dump() formatting issues.
Fixed bug #823: Single quotes are escaped in var_dumped string output.
Fixed bug #819: Xdebug 2.2.0RC2 can't stand on a breakpoint more than 30 seconds.
Fixed bug #801: Segfault with streamwrapper and unclosed $fp on destruction.
Fixed bug #797: Xdebug crashes when fetching static properties.
Fixed bug #794: Allow coloured output on Windows.
Fixed bug #784: Unlimited feature for var_display_max_data and var_display_max_depth is undocumented.
Fixed bug #774: Apache crashes on header() calls.
Fixed bug #764: Tailored Installation instructions do not work.
Fixed bug #758: php_value xdebug.idekey is ignored in .htaccess files
Fixed bug #728: Profiler reports __call() invocations confusingly/wrongly.
Fixed bug #687: Xdebug does not show dynamically defined variable.
Fixed bug #662: idekey is set to running user.
Fixed bug #627: Added the realpath check.
[2012-04-22] — Xdebug 2.2.0rc2

Fixed bugs

Fixed bug #801: Segfault with streamwrapper and unclosed $fp on destruction.
Fixed bug #794: Allow coloured output on Windows.
Fixed bug #784: Unlimited feature for var_display_max_data and var_display_max_depth is undocumented.
Fixed bug #774: Apache crashes on header() calls.
Fixed bug #764: Tailored Installation instructions do not work.
Fixed bug #758: php_value xdebug.idekey is ignored in .htaccess files
Fixed bug #662: idekey is set to running user.
[2012-03-13] — Xdebug 2.2.0rc1

Added features

Support for PHP 5.4.
Added ANSI colour output for the shell. (Including patches by Michael Maclean)
Added var_dump() overloading on the command line (bug #457).
Added better support for closures in stack and function traces.
Added the size of arrays to the overloaded variable output, so that you know how many elements there are.
Added support for X-HTTP-FORWARDED-FOR before falling back to REMOTE_ADDR (bug #660). (Patch by Hannes Magnusson)
Added the method call type to xdebug_get_function_stack() (bug #695).
Added extra information to error printouts to tell that the error suppression operator has been ignored due to xdebug.scream.
Added a error-specific CSS class to stack traces.

New settings

xdebug.cli_color for colouring output on the command line (Unix only).
Added xdebug.trace_enable_trigger to triger function traces through a GET/POST/COOKIE parameter (bug #517). (Patch by Patrick Allaert)
Added support for the 'U' format specifier for function trace and profiler filenames.

Changes

Improved performance by lazy-initializing data structures.
Improved code coverage performance. (Including some patches by Taavi Burns)
Improved compatibility with KCacheGrind.
Improved logging of remote debugging connections, by added connection success/failure logging to the xdebug.remote_log functionality.

Fixed bugs

No additional bug fixes besides the ones from the 2.1 branch up til Xdebug 2.1.4.
[2012-03-12] — Xdebug 2.1.4

Fixed bugs

Fixed bug #788: Collect errors eats fatal errors.
Fixed bug #787: Segmentation Fault with PHP header_remove().
Fixed bug #778: Xdebug session in Eclipse crash whenever it run into simplexml_load_string call.
Fixed bug #756: Added support for ZEND_*_*_OBJ and self::*.
Fixed bug #747: Still problem with error message and soap client / soap server.
Fixed bug #744: new lines in a PHP file from Windows are displayed with an extra white line with var_dump().
Fixed an issue with debugging and the eval command.
Fixed compilation with ZTS on PHP < 5.3.
[2012-01-25] — Xdebug 2.1.3

Fixed bugs

Fixed bug #725: EG(current_execute_data) is not checked in xdebug.c, xdebug_statement_call.
Fixed bug #723: xdebug is stricter than PHP regarding Exception property types.
Fixed bug #714: Cachegrind files have huge (wrong) numbers in some lines.
Fixed bug #709: Xdebug doesn't understand E_USER_DEPRECATED.
Fixed bug #698: Allow xdebug.remote_connect_back to be set in .htaccess.
Fixed bug #690: Function traces are not appended to file with xdebug_start_trace() and xdebug.trace_options=1.
Fixed bug #623: Static properties of a class can be evaluated only with difficulty.
Fixed bug #614/bug #619: Viewing private variables in base classes through the debugger.
Fixed bug #609: Xdebug and SOAP extension's error handlers conflict.
Fixed bug #606/bug #678/bug #688/bug #689/bug #704: crash after using eval on an unparsable, or un-executable statement.
Fixed bug #305: xdebug exception handler doesn't properly handle special chars.

Other changes

Changed xdebug_break() to hint to the statement execution trap instead of breaking forcefully adding an extra stackframe.
Prevent Xdebug 2.1.x to build with PHP 5.4.
[2011-07-28] — Xdebug 2.1.2

Fixed bugs

Fixed bug #622: Working with eval() code is inconvenient and difficult.
Fixed bug #684: xdebug_var_dump - IE does not support &.
Fixed bug #693: Cachegrind files not written when filename is very long.
Fixed bug #697: Incorrect code coverage of function arguments when using XDEBUG_CC_UNUSED.
Fixed bug #699: Xdebug gets the filename wrong for the countable interface.
Fixed bug #703: Added another opcode to the list that needs to be overridden.
[2011-03-28] — Xdebug 2.1.1
[2011-03-22] — Xdebug 2.1.1rc1

Fixed bugs

Debugger

Fixed bug #518: Removed CLASSNAME pseudo-property optional.
Fixed bug #592: Xdebug crashes with run after detach.
Fixed bug #596: Call breakpoint never works with instance methods, only static methods.
Fixed JIT mode in the debugger so that it works for xdebug_break() too.

Profiler

Fixed bug #631: Summary not written when script ended with "exit()".
Fixed bug #639: Xdebug profiling: output not correct - missing 'cfl='.
Fixed bug #642: Fixed line numbers for offsetGet, offsetSet, __get/__set/__isset/__unset and __call in profile files and stack traces/function traces.
Fixed bug #643: Profiler gets line numbers wrong.
Fixed bug #653: XDebug profiler crashes with %H in file name and non standard port.

Others

Fixed bug #651: Incorrect code coverage after empty() in conditional.
Fixed bug #654: Xdebug hides error message in CLI.
Fixed bug #665: Xdebug does not respect display_errors=stderr. (Patch by Ben Spencer)
Fixed bug #670: Xdebug crashes with broken "break x" code.
[2010-06-29] — Xdebug 2.1.0

Fixed bugs

Fixed bug #562: Incorrect coverage information for closure function headers.
Fixed bug #566: Xdebug crashes when using conditional breakpoints.
Fixed bug #567: xdebug_debug_zval and xdebug_debug_zval_stdout don't work with PHP 5.3. (Patch by Endo Hiroaki).
Fixed bug #570: undefined symbol: zend_memrchr.
[2010-04-07] — Xdebug 2.1.0rc1

Fixed bugs

Fixed bug #400: Xdebug shows errors, even when PHP is request startup mode.
Fixed bug #421: xdebug sends back invalid characters in xml sometimes.
Fixed bug #475: Property names with null chars are not sent fully to the client.
Fixed bug #480: Issues with the reserved resource in multi threaded environments (Patch by Francis.Grolemund@netapp.com).
Fixed bug #494: Private attributes of parent class unavailable when inheriting.
Fixed bug #558: PHP segfaults when running a nested eval.
[2010-02-27] — Xdebug 2.1.0beta3

Fixed bugs

Fixed memory corruption issues.
Fixed a threading related issue for code-coverage.
Fixed bug #532: XDebug breaks header() function.
DBGP: Prevent Xdebug from returning properties when a too high page number has been requested.
[2010-02-03] — Xdebug 2.1.0beta2

Fixed bugs

Fixed memory leak in breakpoint handling.
Fixed bug #528: Core dump generated with remote_connect_back option set and CLI usage.
Fixed bug #515: declare(ticks) statement confuses code coverage.
Fixed bug #512: DBGP: breakpoint_get doesn't return conditions in its response.
Possible fix for bug #507/#517: Crashes because of uninitalised header globals.
Fixed bug #501: Xdebug's variable tracing misses POST_INC and variants.
[2010-01-03] — Xdebug 2.1.0beta1

Added features

Added error display collection and suppressions.
Added the recording of headers being set in scripts.
Added variable assignment tracing.
Added the ability to turn of the default overriding of var_dump().
Added "Scream" support, which disables the @ operator.
Added a trace-file analysing script.
Added support for debugging into phars.
Added a default xdebug.ini. (Patch by Martin Schuhfuß <martins@spot-media.de>)
Added function parameters in computerized function traces.
PHP 5.3 compatibility.
Improved code coverage accuracy.

New functions

xdebug_get_formatted_function_stack(), which returns a formatted function stack instead of displaying it.
xdebug_get_headers(), which returns all headers that have been set in a script, both explicitly with things like header(), but also implicitly for things like setcookie().
xdebug_start_error_collection(), xdebug_stop_error_collection() and xdebug_get_collected_errors(), which allow you to collect all notices, warnings and error messages that Xdebug generates from PHP's error_reporting functionality so that you can output them at a later point in your script by hand.

New settings

xdebug.collect_assignments, which enables the emitting of variable assignments in function traces.
xdebug.file_line_format, to generate a link with a specific format for every filename that Xdebug outputs.
xdebug.overload_var_dump, which allows you to turn off Xdebug's version of var_dump().
xdebug.remote_cookie_expire_time, that controls the length of a remote debugging session. (Patch by Rick Pannen <pannen@gmail.com>)
xdebug.scream, which makes the @ operator to be ignored.

Changes

Added return values for xdebug_start_code_coverage() and xdebug_stop_code_coverage() to indicate whether the action was succesfull. xdebug_start_code_coverage() will return TRUE if the call enabled code coverage, and FALSE if it was already enabled. xdebug_stop_code_coverage() will return FALSE when code coverage wasn't started yet and TRUE if it was turned on.
Added an optional argument to xdebug_print_function_stack() to display your own message. (Patch by Mikko Koppanen).
All HTML output as generated by Xdebug now has a HTML "class" attribute for easy CSS formatting.

Removed features

Support for PHP versions lower than PHP 5.1 have been dropped.
The PHP3 and GDB debugger engines have been removed.

Fixed bugs

Fixed support for showing $this in remote debugging sessions.
Fixed bug in formatting the display of "Variables in the local scope".
Possible fix for a threading issue where the headers gathering function would create stack overflows.
Possible fix for bug #324: xdebug_dump_superglobals() only dumps superglobals that were accessed before, and #478: XDebug 2.0.x can't use %R in xdebug.profiler_output_name if register_long_arrays is off.
Fixed bug #505: %s in xdebug.trace_output_name breaks functions traces.
Fixed bug #494: Private attributes of parent class unavailable when inheriting.
Fixed bug #486: feature_get -n breakpoint_types returns out of date list.
Fixed bug #476: Xdebug doesn't support PHP 5.3's exception chaining.
Fixed bug #472: Dead Code Analysis for code coverage messed up after goto.
Fixed bug #470: Catch blocks marked as dead code unless executed.
Fixed bug #469: context_get for function variables always appear as "uninitialized".
Fixed bug #468: Property_get on $GLOBALS works only at top-level, by adding GLOBALS to the super globals context.
Fixed bug #453: Memory leaks.
Fixed bug #445: error_prepend_string and error_append_string are ignored by xdebug_error_cb. (Patch by Kent Davidson <kent@marketruler.com>)
Fixed bug #442: configure: error: "you have strange libedit".
Fixed bug #439: Xdebug crash in xdebug_header_handler.
Fixed bug #423: Conflicts with funcall.
Fixed bug #419: Make use of P_tmpdir if defined instead of hard coded '/tmp'.
Fixed bug #417: Response of context_get may lack page and pagesize attributes.
Fixed bug #411: Class/function breakpoint setting does not follow the specs.
Fixed bug #393: eval returns array data at the previous page request.
Fixed bug #391: Xdebug doesn't stop executing script on catchable fatal errors.
Fixed bug #389: Destructors called on fatal error.
Fixed bug #368: Xdebug's debugger bails out on a parse error with the eval command.
Fixed bug #356: Temporary breakpoints persist.
Fixed bug #355: Function numbers in trace files weren't unique.
Fixed bug #340: Segfault while throwing an Exception.
Fixed bug #328: Private properties are incorrectly enumerated in case of extended classes.
Fixed bug #249: Xdebug's error handler messes up with the SOAP extension's error handler.

DBGP

Fixed cases where private properties where shown for objects, but not accessible.
Added a patch by Lucas Nealan (lucas@php.net) and Brian Shire (shire@php.net) of Facebook to allow connections to the initiating request's IP address for remote debugging.
Added the -p argument to the eval command as well, pending inclusion into DBGP.
Added the retrieval of a file's execution lines. I added a new un-official method called xcmd_get_executable_lines which requires the stack depth as argument (-d). You can only fetch this information for stack frames as it needs an available op-array which is only available when a function is executed.
Added a fake "CLASSNAME" property to objects that are returned in debug requests to facilitate deficiencies in IDEs that fail to show the "classname" XML attribute.
[2009-07-03] — Xdebug 2.0.5

Fixed bugs

Fixed bug #425: memory leak (around 40MB for each request) when using xdebug_start_trace.
Fixed bug #422: Segfaults when using code coverage with a parse error in the script.
Fixed bug #418: compilation breaks with CodeWarrior for NetWare.
Fixed bug #403: 'call' and 'return' breakpoints triggers both on call and return for class method breakpoints.
Fixed TSRM issues for PHP 5.2 and PHP 5.3. (Original patch by Elizabeth M. Smith).
Fixed odd crash bugs, due to GCC 4 sensitivity.

Added features

Support debugging into phars.
Basic PHP 5.3 support.
[2008-12-30] — Xdebug 2.0.4

Fixed bugs

Fixed for strange jump positions in path analysis.
Fixed issues with code coverage crashing on parse errors.
Fixed code code coverage by overriding more opcodes.
Fixed issues with Xdebug stalling/crashing when detaching from remote debugging.
Fixed crash on Vista where memory was freed with routines from a different standard-C library than it was allocated with. (Patch by Eric Promislow <ericp@activestate.com>).
Link against the correct CRT library. (Patch by Eric Promislow <ericp@activestate.com>).
Sort the symbol elements according to name. (Patch by Eric Promislow <ericp@activestate.com>).
Fixed support for mapped-drive UNC paths for Windows. (Patch by Eric Promislow <ericp@activestate.com>).
Fixed a segfault in interactive mode while including a file.
Fixed a crash in super global dumping in case somebody was strange enough to reassign them to a value type other than an Array.
Simplify version checking for libtool. (Patch by PGNet <pgnet.trash@gmail.com>).
Fixed display of unused returned variables from functions in PHP 5.3.
Include config.w32 in the packages as well.
Fixed .dsp for building with PHP 4.

Added features

Support debugging into phars.
Basic PHP 5.3 support.
[2008-04-09] — Xdebug 2.0.3

Fixed bugs

Fixed bug #338: Crash with: xdebug.remote_handler=req.
Fixed bug #334: Code Coverage Regressions.
Fixed abstract method detection for PHP 5.3.
Fixed code coverage dead-code detection.
Ignore ZEND_ADD_INTERFACE, which is on a different line in PHP >= 5.3 for some weird reason.

Changes

Added a CSS-class for xdebug's var_dump().
Added support for the new E_DEPRECATED.
[2007-11-11] — Xdebug 2.0.2

Fixed bugs

Fixed bug #325: DBGP: "detach" stops further sessions being established from Apache.
Fixed bug #321: Code coverage crashes on empty PHP files.
Fixed bug #318: Segmentation Fault in code coverage analysis.
Fixed bug #315: Xdebug crashes when including a file that doesn't exist.
Fixed bug #314: PHP CLI Error Logging thwarted when XDebug Loaded.
Fixed bug #300: Direction of var_dump().
Always set the transaction_id and command. (Related to bug #313).
[2007-10-20] — Xdebug 2.0.1

Changes

Improved code coverage performance dramatically.
PHP 5.3 compatibility (no namespaces yet though).

Fixed bugs

Fixed bug #301: Loading would cause SIGBUS on Solaris 10 SPARC. (Patch by Sean Chalmers)
Fixed bug #300: Xdebug does not force LTR rendering for its tables.
Fixed bug #299: Computerized traces don't have a newline for return entries if memory limit is not enabled.
Fixed bug #298: xdebug_var_dump() doesn't handle entity replacements correctly concerning string length.
Fixed a memory free error related to remote debugging conditions. (Related to bug #297).
[2007-07-18] — Xdebug 2.0.0

Changes

Put back the disabling of stack traces - apperently people were relying on this. This brings back xdebug_enable(), xdebug_disable() and xdebug_is_enabled().
xdebug.collect_params is no longer a boolean setting. Although it worked fine, phpinfo() showed only just On or Off here.
Fixed the Xdebug version of raw_url_encode to not encode : and \. This is not necessary according to the RFCs and it makes debug breakpoints work on Windows.

Fixed bugs

Fixed bug #291: Tests that use SPL do not skip when SPL is not available.
Fixed bug #290: Function calls leak memory.
Fixed bug #289: Xdebug terminates connection when eval() is run in the init stage.
Fixed bug #284: Step_over on breakpointed line made Xdebug break twice.
Fixed bug #283: Xdebug always returns $this with the value of last stack frame.
Fixed bug #282: %s is not usable for xdebug.profiler_output_name on Windows in all stack frames.
Fixed bug #280: var_dump() doesn't display key of array as expected.
Fixed bug #278: Code Coverage Issue.
Fixed bug #273: Remote debugging: context_get does not return context id.
Fixed bug #270: Debugger aborts when PHP's eval() is encountered.
Fixed bug #265: XDebug breaks error_get_last() .
Fixed bug #261: Code coverage issues by overloading zend_assign_dim.

DBGP

Added support for "breakpoint_languages".
[2007-05-17] — Xdebug 2.0.0RC4

Changes

Use µ seconds instead of a tenths of µ seconds to avoid confusion in profile information.
Changed xdebug.profiler_output_name and xdebug.trace_output_name to use modifier tags:
%c
crc32 of the current working directory
%p
pid
%r
random number
%s
script name
%t
timestamp (seconds)
%u
timestamp (microseconds)
%H
$_SERVER['HTTP_HOST']
%R
$_SERVER['REQUEST_URI']
%S
session_id (from $_COOKIE if set)
%%
literal %

Fixed bugs

Fixed bug #255: Call Stack Table doesn't show Location on Windows.
Fixed bug #251: Using the source command with an invalid filename returns unexpected result.
Fixed bug #243: show_exception_trace="0" ignored.
Fixed bug #241: Crash in xdebug_get_function_stack().
Fixed bug #240: Crash with xdebug.remote_log on Windows.
Fixed a segfault in rendering stack traces to error logs.
Fixed a bug that prevented variable names from being recorded for remote debug session while xdebug.collect_vars was turned off.
Fixed xdebug_dump_superglobals() in case no super globals were configured.

Removed functions

Removed support for Memory profiling as that didn't work properly.
Get rid of xdebug.default_enable setting and associated functions: xdebug_disable() and xdebug_enable().

Added features

Implemented support for four different xdebug.collect_params settings for stack traces and function traces.
Allow to trigger profiling by the XDEBUG_PROFILE cookie.

DBGP

Correctly add namespace definitions to XML.
Added the xdebug namespace that adds extra information to breakpoints if available.
Stopped the use of elements for exception breakpoints, as that violates the protocol.
[2007-01-31] — Xdebug 2.0.0RC3

Changes

Removed the bogus "xdebug.allowed_clients" setting - it was not implemented.
Optimized used variable collection by switching to a linked list instead of a hash. This is about 30% faster, but it needed a quick conversion to hash in the case the information had to be shown to remove duplicate variable names.

Fixed bugs

Fixed bug #232: PHP log_errors functionality lost after enabling xdebug error handler when CLI is used.
Fixed problems with opening files - the filename could cause double free issues.
Fixed memory tracking as memory_limit is always enabled in PHP 5.2.1 and later.
Fixed a segfault that occurred when creating printable stack traces and collect_params was turned off.
[2006-12-24] — Xdebug 2.0.0RC2

Added new features

Implemented the "xdebug.var_display_max_children" setting. The default is set to 128 children.
Added types to fancy var dumping function.
Implemented FR #210: Add a way to stop the debug session without having to execute a script. The GET/POST parameter "XDEBUG_SESSION_STOP_NO_EXEC" works in the same way as XDEBUG_SESSION_STOP, except that the script will not be executed.
DBGP: Allow postmortem analysis.
DBGP: Added the non-standard function xcmd_profiler_name_get.

Changes

Fixed the issue where xdebug_get_declared_vars() did not know about variables there are in the declared function header, but were not used in the code. Due to this change expected arguments that were not send to a function will now show up as ??? in stack and function traces in PHP 5.1 and PHP 5.2.
Allow xdebug.var_display_max_data and xdebug.var_display_max_depth settings of -1 which will unlimit those settings.
DBGP: Sort super globals in Globals overview.
DBGP: Fixed a bug where error messages where not added upon errors in the protocol.
DBGP: Change context 1 from globals (superglobals + vars in bottom most stack frame) to just superglobals.

Fixed bugs

Fixed linking error on AIX by adding libm.
Fixed dead code analysis for THROW.
Fixed oparray prefill caching for code coverage.
Fixed the xdebug.remote_log feature work.
DBGP: Fixed a bug where $this did not appear in the local scoped context.
DBGP: Reimplemented property_set to use the same symbol fetching function as property_get. We now only use eval in case no type (-t) argument was given.
DBGP: Fixed some issues with finding out the classname, which is important for fetching private properties.
DBGP: Fixed usage of uninitialized memory that prevented looking up numerical array keys while fetching array elements not work properly.
Fixed bug #228: Binary safety for stream output and property fetches.
Fixed bug #227: The SESSION super global does not show up in the Globals scope.
Fixed bug #225: xdebug dumps core when protocol is GDB.
Fixed bug #224: Compile failure on Solaris.
Fixed bug #219: Memory usage delta in traces don't work on PHP 5.2.0.
Fixed bug #215: Cannot retrieve nested arrays when the array key is a numeric index.
Fixed bug #214: The depth level of arrays was incorrectly checked so it would show the first page of a level too deep as well.
Fixed bug #213: Dead code analysis doesn't take catches for throws into account.
Fixed bug #211: When starting a new session with a different idekey, the cookie is not updated.
Fixed bug #209: Additional remote debugging session started when triggering shutdown function.
Fixed bug #208: Socket connection attempted when XDEBUG_SESSION_STOP.
Fixed PECL bug #8989: Compile error with PHP 5 and GCC 2.95.
[2006-10-08] — Xdebug 2.0.0RC1

Added new features

Implemented FR #70: Provide optional depth on xdebug_call_* functions.
Partially implemented FR #50: Resource limiting for variable display. By default only two levels of nested variables and max string lengths of 512 are shown. This can be changed by setting the ini settings xdebug.var_display_max_depth and xdebug.var_display_max_data.
Implemented breakpoints for different types of PHP errors. You can now set an 'exception' breakpoint on "Fatal error", "Warning", "Notice" etc. This is related to bug #187.
Added the xdebug_print_function_trace() function to display a stack trace on demand.
Reintroduce HTML tracing by adding a new tracing option "XDEBUG_TRACE_HTML" (4).
Made xdebug_stop_trace() return the trace file name, so that the following works: <?php echo file_get_contents( xdebug_stop_trace() ); ?>
Added the xdebug.collect_vars setting to tell Xdebug to collect information about which variables are used in a scope. Now you don't need to show variables with xdebug.show_local_vars anymore for xdebug_get_declared_vars() to work.
Make the filename parameter to the xdebug_start_trace() function optional. If left empty it will use the same algorithm to pick a filename as when you are using the xdebug.auto_trace setting.

Changes

Implemented dead code analysis during code coverage for: abstract methods, dead code after return, throw and exit, and implicit returns when a normal return is present.
Improved readability of stack traces.
Use PG(html_errors) instead of checking whether we run with CLI when deciding when to use HTML messages or plain text messages.

Fixed bugs

Fixed bug #203: PHP errors with HTML content processed incorrectly. This patch backs out the change that was made to fix bug #182.
Fixed bug #198: Segfault when trying to use a non-existing debug handler.
Fixed bug #197: Race condition fixes created too many files.
Fixed bug #196: Profile timing on Windows does not work.
Fixed bug #195: CLI Error after debugging session.
Fixed bug #193: Compile problems with PHP 5.2.
Fixed bug #191: File/line breakpoints are case-sensitive on Windows.
Fixed bug #181: Xdebug doesn't handle uncaught exception output correctly.
Fixed bug #173: Coverage produces wrong coverage.
Fixed a typo that prevented the XDEBUG_CONFIG option "profiler_enable" from working.
[2006-06-30] — Xdebug 2.0.0beta6

Added new features

Implemented FR #137: feature_get for general commands doesn't have a text field.
Implemented FR #131: XDebug needs to implement paged child object requests.
Implemented FR #124: Add backtrace dumping information when exception thrown.
Implemented FR #70: Add feature_get breakpoint_types.
Added profiling aggregation functions (patch by Andrei Zmievski)
Implemented the "timestamp" option for the xdebug.trace_output_name and xdebug.profiler_output_name settings.
Added the xdebug.remote_log setting that allows you to log debugger communication to a log file for debugging. This can also be set through the "remote_log" element in the XDEBUG_CONFIG environment variable.
Added a "script" value to the profiler_output_name option. This will write the profiler output to a filename that consists of the script's full path (using underscores). ie: /var/www/index.php becomes var_www_index_php_cachegrind.out. (Patch by Brian Shire).
DBGp: Implemented support for hit conditions for breakpoints.
DBGp: Added support for conditions for file/line breakpoints.
DBGp: Added support for hit value checking to file/line breakpoints.
DBGp: Added support for "exception" breakpoints.

Performance improvements

Added a cache that prevents the code coverage functionality from running a "which code is executable check" on every function call, even if they were executed multiple times. This should speed up code coverage a lot.
Speedup Xdebug but only gathering information about variables in scopes when either remote debugging is used, or show_local_vars is enabled.

Fixed bugs

Fixed bug #184: problem with control chars in code traces
Fixed bug #183: property_get -n $this->somethingnonexistent crashes the debugger.
Fixed bug #182: Errors are not html escaped when being displayed.
Fixed bug #180: collected includes not shown in trace files. (Patch by Cristian Rodriguez)
Fixed bug #178: $php_errormsg and Track errors unavailable.
Fixed bug #177: debugclient fails to compile due to Bison.
Fixed bug #176: Segfault using SplTempFileObject.
Fixed bug #173: Xdebug segfaults using SPL ArrayIterator.
Fixed bug #171: set_time_limit stack overflow on 2nd request.
Fixed bug #168: Xdebug's DBGp crashes on an eval command where the result is an array.
Fixed bug #125: show_mem_delta does not calculate correct negative values on 64bit machines.
Fixed bug #121: property_get -n $r[2] returns the whole hash.
Fixed bug #111: xdebug does not ignore set_time_limit() function during debug session.
Fixed bug #87: Warning about headers when "register_shutdown_function" used.
Fixed PECL bug #6940 (XDebug ignores set_time_limit)
Fixed Komodo bug 45484: no member data for objects in PHP debugger.
Suppress NOP/EXT_NOP from being marked as executable code with Code Coverage.
[2005-12-31] — Xdebug 2.0.0beta5

Added new features

Implemented FR #161: var_dump doesn't show lengths for strings.
Implemented FR #158: Function calls from the {main} scope always have the line number 0.
Implemented FR #156: it's impossible to know the time taken by the last func call in xdebug trace mode 0.
Implemented FR #153: xdebug_get_declared_vars().

Fixed bugs

Fixed shutdown crash with ZTS on Win32
Fixed bad memory leak when a E_ERROR of exceeding memory_limit was thrown.
Fixed bug #154: GCC 4.0.2 optimizes too much out with -O2.
Fixed bug #141: Remote context_get causes segfault.
[2004-11-29]

Added new features

DBGP: Added error messages to returned errors (in most cases)

Added new functions

xdebug_debug_zval() to debug zvals by printing its refcounts and is_ref values.

Changed features

xdebug_code_coverage_stop() will now clean up the code coverage array, unless you specify FALSE as parameter.
The proper Xdebug type is "hash" for associative arrays.
Extended the code-coverage functionality by returning lines with executable code on them, but where not executed with a count value of -1.

Fixed bugs

DBGP: Make property_get and property_value finally work as they should, including retrieving information from different depths then the most top stack frame.
DBGP: Fix eval'ed $varnames in property_get.
DBGP: Support the -d option for property_get.
Fixed the exit handler hook to use the new "5.1" way of handling it; which fortunately also works with PHP 5.0.
Fixed bug #102: Problems with configure for automake 1.8.
Fixed bug #101: crash with set_exeception_handler() and uncatched exceptions.
Fixed bug #99: unset variables return the name as a string with property_get.
Fixed bug #98: 'longname' attribute not returned for unintialized property in context_get request.
Fixed bug #94: xdebug_sprintf misbehaves with x86_64/glibc-2.3.3
Fixed bug #93: Crash in lookup_hostname on x86_64
Fixed bug #92: xdebug_disable() doesn't disable the exception handler.
Fixed bug #68: Summary not written when script ended with "exit()".
[2004-09-15]

Added new features

Added support for the new DBGp protocol for communicating with the debug engine.
A computerized trace format for easier parsing by external programs.
The ability to set remote debugging features via the environment. This allows an IDE to emulate CGI and still pass the configuration through to the debugger. In CGI mode, PHP does not allow -d arguments.
Reimplementation of the tracing code, you can now only trace to file; this greatly enhances performance as no string representation of variables need to be kept in memory any more.
Re-implemented profiling support. Xdebug outputs information the same way that cachegrind does so it is possible to use Kcachegrind as front-end.
Xdebug emits warnings when it was not loaded as a Zend extension.
Added showing private, protected and public to the fancy var_dump() replacement function.
Added the setting of the TCP_NODELAY socket option to stop delays in transferring data to the remote debugger client. (Patch by Christof J. Reetz)
DebugClient: Added setting for port to listen on and implemented running the previous command when pressing just enter.

Added new functions

xdebug_get_stack_depth() to return the current stack depth level.
xdebug_get_tracefile_name() to retrieve the name of the tracefile. This is useful in case auto trace is enabled and you want to clean the trace file.
xdebug_peak_memory_usage() which returns the peak memory used in a script. (Only works when --enable-memory-limit was enabled)

Added feature requests

FR #5: xdebug_break() function which interupts the script for the debug engine.
FR #30: Dump current scope information in stack traces on error.
FR #88: Make the url parameter XDEBUG_SESSION_START optional. So it can be disabled and the user does not need to add it.

Added new php.ini settings

xdebug.auto_trace_file: to configure a trace file to write to as addition to the xdebug.auto_trace setting which just turns on tracing.
xdebug.collect_includes: separates collecting names of include files from the xdebug.collect_params setting.
xdebug.collect_return: showing return values in traces.
xdebug.dump_global: with which you can turn off dumping of super globals even in you have that configured.
xdebug.extended_info: turns off the generation of extended opcodes that are needed for stepping and breakpoints for the remote debugger. This is useful incase you want to profile memory usage as the generation of this extended info increases memory usage of oparrrays by about 33%.
xdebug.profiler_output_dir: profiler output directory.
xdebug.profiler_enable: enable the profiler.
xdebug.show_local_vars: turn off the showing of local variables in the top most stack frame on errors.
xdebug.show_mem_delta: show differences between current and previous memory usage on a function call level.
xdebug.trace_options: to configure extra options for trace dumping: o XDEBUG_TRACE_APPEND option (1)

Changed features

xdebug_start_trace() now returns the filename of the tracefile (.xt is added to the requested name).
Changed default debugging protocol to dbgp instead of gdb.
Changed default debugger port from 17869 to 9000.
Changed trace file naming: xdebug.trace_output_dir is now used to configure a directory to dump automatic traces; the trace file name now also includes the pid (xdebug.trace_output_name=pid) or a crc32 checksum of the current working dir (xdebug.trace_output_name=crc32) and traces are not being appended to an existing file anymore, but simply overwritten.
Removed $this and $GLOBALS from showing variables in the local scope.

Removed functions

xdebug_get_function_trace/xdebug_dump_function_trace() because of the new idea of tracing.

Fixed bugs

Fixed bug #89: var_dump shows empty strings garbled.
Fixed bug #85: Xdebug segfaults when no idekey is set.
Fixed bug #83: More than 32 parameters functions make xdebug crash.
Fixed bug #75: xdebug's var_dump implementation is not binary safe.
Fixed bug #73: komodo beta 4.3.7 crash.
Fixed bug #72: breakpoint_get returns wrong structure.
Fixed bug #69: Integer overflow in cachegrind summary.
Fixed bug #67: Filenames in Xdebug break URI RFC with spaces.
Fixed bug #64: Missing include of xdebug_compat.h.
Fixed bug #57: Crash with overloading functions.
Fixed bug #54: source command did not except missing -f parameter.
Fixed bug #53: Feature get misusing the supported attribute.
Fixed bug #51: Only start a debug session if XDEBUG_SESSION_START is passed as GET or POST parameter, or the DBGP_COOKIE is send to the server. Passing XDEBUG_SESSION_STOP as GET/POST parameter will end the debug session and removes the cookie again. The cookie is also passed to the remote handler backends; for DBGp it is added to the packet.
Fixed bug #49: Included file's names should not be stored by address.
Fixed bug #44: Script time-outs should be disabled when debugging.
Fixed bug #36: GDB handler using print causes segfault with wrong syntax
Fixed bug #33: Implemented the use of the ZEND_POST_DEACTIVATE hook. Now we can handle destructors safely too.
Fixed bug #32: Unusual dynamic variables cause xdebug to crash.
[2003-12-26]
GDB: Added file/line to signals.
Fixed logging to adhere to the error_reporting setting.
Fixed bug #32: Unusual dynamic variables cause xdebug to crash.
Fixed bug #31: & entity replaced after others, wrong HTML output.
Fixed bug #22: Segmentation fault with xdebug_get_function_stack() and collect_params=1.
[2003-11-08]
Added version info to handlers which show in phpinfo() output.
GDB: Fixed bug with continuing after breakpoint where only 'cont' worked.
GDB: Fixed bug in deleting absolute breakpoints on Windows.
Fixed bug #27: Repeated connect attempts when no debugger is listening.
Fixed bug #19: The value of xdebug.output_dir in a .htaccess never takes effect.
Fixed bug #18: Mistyped sizeof()'s for array indexes in profiler output.
Fixed handling stack traces for when display_errors was set to Off.
Fixed segfault where a function name didn't exist in case of a "call_user_function".
Fixed reading a filename in case of an callback to a PHP function from an internal function (like "array_map()").
[2003-09-18]
Fixed bug with wrong file names for functions called from call_user_*().
[2003-08-30]
Added the option "dump_superglobals" to the remote debugger. If you set this option to 0 the "show-local" and similar commands will not return any data from superglobals anymore.
[2003-08-30]
Fixed bug #2: "pear package" triggers a segfault.
Fixed crash bug when a function had sprintf style parameters (ie. strftime()).
[2003-07-16]
Added "id" attribute to <var /> elements in responses from the remove debugger when the response method is XML. This makes it possible to distinguish between unique elements by use of recursion for example.
Greatly cut down on the overhead that Xdebug causes on running scripts.
Fixed a bug with "quit" that would disable the extension.
Fixed a bug in the folding of recursive elements.
[2003-07-03]
Implemented an argument to the "bt" command. If this is set to "full" all local variables for a stack frame are showed too.
[2003-06-28]
Updated licence: "PHP Licence" was renamed to "Xdebug Licence", "The PHP Group" to "Derick Rethans" and "PHP" to "Xdebug".
Added the xdebug_time_index() function which returns the time index since the start of the script.
[2003-06-23]
Updated licence: "PHP Licence" was renamed to "Xdebug Licence", "The PHP Group" to "Derick Rethans" and "PHP" to "Xdebug".
Implemented the "show-breakpoints" command which shows all currently active breakpoints including conditions.
[2003-05-14]
Implemented the "show-local" command (shows all local variables in the current scope including all contents) and conditions for breakpoints in the "break" command.
[2003-04-27]
Added a fancy replacement function for var_dump which overloads the standard PHP function while HTML errors are enabled.
[2003-04-21]
Added the xdebug_call_class function as addition to xdebug_call_function.
[2003-04-19]
Re-implemented the maximum nesting level protection.
[2003-04-18]
Turned off xdebug.collect_params by default.
Fix problems with symbols on MacOSX.
[2003-04-14]
Fixed handling pathnames and files under Windows for the debugger.
[2003-04-10]
Fixed accessing of superglobal variables from the debugger client.
[2003-04-06]
Fixed a segfault that happened while dealing with include files with ZE2.
[2003-04-05]
Allow remote debugging to be enabled in httpd.conf and .htaccess files.
Added code coverage, enable with xdebug_start_code_coverage(), disable with xdebug_stop_code_coverage() and get the information with xdebug_get_code_coverage(). The latter returns an array with each element being an array containing the lines and the number of times a statement was run on that line, per executed file.
[2003-02-14]
Added dumping of super globals when an error occurs.
[2003-01-27]
Added an XML transport layer for the remote debugger.
[2003-01-22]
Fixed handling of 'continue' (in addition to 'cont').
[2003-01-14]
Updated Xdebug to support Zend Engine 2 (PHP 5.0.0-dev).
[2003-01-07]
Implemented the "eval" (evalutes PHP code) to the remote debugger.
[2003-01-05]
Enabled support for Windows again.
directing profiling output to
[2002-12-20]
Fixed the "init" state of the debugger, from now on you can print data (like environment variables) from this state.
The array returned by get_function_trace() now includes the memory footprint and timing information.
[2002-12-08]
Automatic profiling added, including redirecting profiling output to disk.
[2002-11-29]
Added a new profiling mode: Stack-Dump.
[2002-11-27]
Basic profiling added to Xdebug, including three new functions: xdebug_start_profiling() that begins profiling process, xdebug_stop_profiling() that ends the profiling process and xdebug_dump_function_trace() that dumps the profiling data.
[2002-11-15]
Implemented the "kill" (kills the running script) and "delete" (deletes an already set breakpoint) command for the remote debugger.
[2002-11-13]
Parameters to functions are no longer recorded by default; use the xdebug.collect_params=1 setting in php.ini to turn it on again.
[2002-11-12]
Made the xdebug server and client working under Windows.
[2002-11-09]
Implemented the "next" (step over) and "finish" (step out) commands for the remote debugger.
[2002-11-07]
Lots of small bugfixes, under them memory leaks and crash bugs.
[2002-11-03]
Implemented the "list" (source listing), "print" (printing variable contents), "show" (show all variables in the scope), "step" (step through execution) and "pwd" (print working directory) commands to the remote debugger.
[2002-10-29]
Implemented class::method, object->method and file.ext:line style breakpoints.
Changed debugger port from 7869 to 17869.
[2002-10-28]
Added xdebug.collect_params setting. If this setting is on (the default) then Xdebug collects all parameters passed to functions, otherwise they are not collected at all.
Implemented correct handling of include/require and eval.
[2002-10-22]
Fixed bug which caused wrong filenames to be reported.
[2002-10-18]
Added automatic starting of function traces (xdebug.auto_trace, defaulting to "off").
Xdebug no longer supports PHP versions below PHP 4.3.0pre1.
Added gdb compatible debugger handler with support for simple (function only) breakpoints.
[2002-09-16]
Fixed bug with argument lists.
[2002-09-04]
Implemented remote debugger handler abstraction.
Added a php3 compatible debugger handler.
[2002-09-01]
Fixed memory footprint readings by not counting memory used by xdebug.
[2002-08-30]
Implemented gathering of parameters to internal functions. (Only works with recent PHP 4.3.0-dev versions!)
[2002-08-28]
Bugs, better performance and update of the xdebug_get_function_trace().
[2002-08-27]
Add much better routine for getting data from Zend.
[2002-06-23]
Xdebug no longer relies on PHP's output buffering mechanism. This caused problems with PEAR.
[2002-06-16]
Added PECL package.xml file to make xdebug installable by PEAR.
Flush the log file after every line during function tracing to file.
Removed the xdebug_* functions from the returned/showed function stracks and traces.
[2002-06-09]
Rewrote xdebug_get_function_stack() and xdebug_get_function_trace() to return data in multidimensional arrays.
[2002-06-06]
Add support for classnames, variable include files and variable function names.
Implemented links to the PHP Manual in traces.
Added timestamps and memory usage to function traces
[2002-06-02]
Fixed a crash when using user defined session handlers.
[2002-05-29]
Implemented variable function names.
[2002-05-26]
Unify showing unknown data.
[2002-05-25]
Implemented much better parameter tracing for user defined functions.
[2002-05-18]
Renamed xdebug_get_function_trace() to xdebug_dump_function_trace().
Implemented new xdebug_get_function_trace() to return the function trace in an array.
Added a parameter to xdebug_start_trace(). When this parameter is used, xdebug will dump a function trace to the filename which this parameter speficies.Fixed functions as parameters to functions
[2002-05-17]
Fixed functions as parameters to functions
[2002-05-15]
Fix logging to the systemlog
[2002-05-14]
Make xdebug respect the value of the error_reporting setting
[2002-05-12]
Added handling single-dimensional constant arrays as parameter to functions
[2002-05-11]
Implemented function traces (xdebug_start_trace(), xdebug_stop_trace() and xdebug_get_function_trace())
Added support for Windows to xdebug
[2002-05-08]
Implemented handling of static method calls (foo::bar())
[2002-05-07]
Implemented correct handling of include(), require() and eval()
[2002-05-06]
Fix removal of elements from the stack
[2002-05-03]
Added ini_settings and functions to disable and enable showing stacktraces from within your PHP script
[2002-05-02]
Added xdebug_memory_usage() which returns the amount of memory used by the PHP script


 
 
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