0001023: bug explanation & solution

View Issue Details [ Jump to Notes ]

[ Issue History ] [ Print ]

Project

Category

View Status

Date Submitted

Last Update

0001023

v3.0 Release

[All Projects] General

public

2011-11-30 04:33

2013-08-28 11:22

Reporter

project_manager

Assigned To

caseydk

Priority

normal

Severity

crash

Reproducibility

always

Status

closed

Resolution

fixed

Product Version

Target Version

Fixed in Version

3.0.0

Summary

0001023: bug explanation & solution

Description

http://forums.web2project.net/viewtopic.php?p=13826#13826

Pacek wrote:
I have problem with "Print to PDF" function. When I press button I have error which is displayed at the bottom of Gantt chart:
Code:
JpGraph Error General PHP error : Undefined variable: criticalTasks

Could you help me resolve this error?

After installing XAMPP for Win on my local VISTA maschine I got the same error and the Gantt-chart is not generated.

The same web2project installed before by a free hoster did never get such an error message.

A sign that some hardware and /or software setup have an impact to the correct operation of the SW.

After some debuging I figured out that it can be circumvented by setting:

copy from my php.ini:

; Store the last error/warning message in $php_errormsg (boolean). Setting this value
; to On can assist in debugging and is appropriate for development servers. It should
; however be disabled on production servers.
; Default Value: Off
; Development Value: On
; Production Value: Off
; http://php.net/track-errors

track_errors = Off

As the standard setting was "on" the switch off removes the error.

The error comes from a php-error handling routine in "jpgraph.php" and
is catched by the php error message 'php_errormsg', that reports an "unknown string local_char_set".

//
//Check if there were any warnings, perhaps some wrong includes by the user
//
if( isset($GLOBALS['php_errormsg']) && CATCH_PHPERRMSG &&
!preg_match('|Deprecated|', $GLOBALS['php_errormsg']) && !preg_match('|deprecated|', $GLOBALS['php_errormsg']) && !preg_match('|Non-static|', $GLOBALS['php_errormsg'])) {
JpGraphError::RaiseL(25004,$GLOBALS['php_errormsg']);
}

Why this php-error is generated I dont know... A task for the experts. With track_errors=off the php-error is not anymore reported and 'php_errormsg' becomes "NULL", so the php-error is not handled

this code:

JpGraphError::RaiseL(25004,$GLOBALS['php_errormsg']);

gives the text-message:

JpGraph Error General PHP error : Undefined variable: criticalTasks.

Interesting to see, that 2 different installations with a mini-change in the php.ini can give completely different results.

The best solution would to keep the error tracking on and to figure out why the php-error occurs, otherwise it is only a dirty solution.

Additional Information

all versions as bug/error-handling in "jpgraph.php" depend on settings of php.ini

Date Modified	Username	Field	Change
Issue History
2011-11-30 04:33	project_manager	New Issue
2011-12-22 21:04	caseydk	Note Added: 0002362
2011-12-22 21:04	caseydk	Status	new => resolved
2011-12-22 21:04	caseydk	Resolution	open => fixed
2011-12-22 21:04	caseydk	Assigned To	=> caseydk
2013-08-28 11:14	caseydk	Fixed in Version	=> 3.0.0
2013-08-28 11:22	caseydk	Status	resolved => closed

Relationships