Hello,
This is a new formulation of 3029 and 3057 problem after near 200 hours of test and debug.
The solution that I propose establish the compatibility of 4.2 with php 5.3.2.
I can't affirm that I wrote a complete debug version because the execution stop on another problem (track http://dev.tikiwiki.org/tiki-view_tracker_item.php?trackerId=5&itemId=3115, so it is not ended. I can't be sure that everything is OK.
The time spend is not only on TikiWiki, a had to solved installation problems and find a bug into easyphp and addresses resolution on the server.
The problem began with 4.1 and php 5.3.0 and I upgrade to 4.2 and 5.3.2 to be sure of the problem and the available solution.
note : Because I found the nature of the problem, I don't start from the nature of the crash but the analysis, but I produce a selected track made with xdebug var_dump)
<$dbTiki = new PDO("$db_tiki:$db_hoststring;dbname=$dbs_tiki", $user_tiki, $pass_tiki); >
<TikiDb::set( new TikiDb_Pdo( $dbTiki ) ); >
< $sth = TikiDb::get()->prepare($qry); >
This instruction generates the fatal error :
Fatal error: Call to undefined method TikiDb_Pdo::prepare() in D:\Trebly\Teawik-ld8-422a\lib\tikisession-pdo.php on line 28
The reason is simple and explained by the error comment :
we try to run the prepare function which is a PDO function on a TikiDb_Pdo object which has no reason to inherit of these Pdo function even <TikiDb::get()->db->prepare> could have a meaning.
Then the solution is in what is made in ZEND lib (not yet used in 4.2), create an interface to PDO into Class TikiDb_Pdo.
This functions and it is written.
One important question is why and how the same instructions seems to be available and functions well on Linux (I have a site which runs normally with 4.1, not yet upgraded to 4.2, a to-do)
I believe that the actual solution that I have developed for 4.2 on Windows with PDO (compiled) extension, should be extended to the normal version.
As I have said before I can't confirm completely that the solution is correctly tested and free of bug because, the program have a FATAL ERROR PDOException: SQLSTATEHY093 later on the prefs restoration I create another report for this.
Note 1 (complement, I will made another little track for this) :
the execute statement written execute() without parameter generates each time a warning message when xdebug is used and php error management activated with STRICT option (default in 5.3.2). This makes necessarily the code lightly slower.
Note 2 :
I developed for other debug for this an enhanced error template according to the error handler which displays much more informations about the context and, into these, the parameter (title) of execute statement. This make an enhancement to find much more quickly the errors.
I will implement a test so that it should be displayed only for administrator.
To help developers solve the bug, we kindly request that you demonstrate your bug on a show2.tiki.org instance. To start, simply select a version and click on "Create show2.tiki.org instance". Once the instance is ready (in a minute or two), as indicated in the status window below, you can then access that instance, login (the initial admin username/password is "admin") and configure the Tiki to demonstrate your bug. Priority will be given to bugs that have been demonstrated on show2.tiki.org.
To help developers solve the bug, we kindly request that you demonstrate your bug on a show.tikiwiki.org instance. To start, simply select a version and click on "Create show.tikiwiki.org instance". Once the instance is ready (in a minute or two), as indicated in the status window below, you can then access that instance, login (the initial admin username/password is "admin") and configure the Tiki to demonstrate your bug. Priority will be given to bugs that have been demonstrated on show.tikiwiki.org.
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