[TYPO3-dev] something i found in my php error_log file

[Xavier Perseguers]

Hi,

> There are some PHP errors in my php error logfile, since i upgraded...
> 
> [28-Jan-2009 22:59:27] PHP Warning:  Cannot modify header information -
> headers already sent by (output started at
> /home/webuser/typo3_src-4.2.5/typo3/sysext/cms/tslib/class.tslib_fe.php:696)
> in /home/webuser/typo3_src-4.2.5/typo3/sysext/cms/tslib/class.tslib_fe.php
> on line 3226
> [28-Jan-2009 22:59:27] PHP Warning:  Cannot modify header information -
> headers already sent by (output started at
> /home/webuser/typo3_src-4.2.5/typo3/sysext/cms/tslib/class.tslib_fe.php:696)
> in /home/webuser/typo3_src-4.2.5/typo3/sysext/cms/tslib/class.tslib_fe.php
> on line 3239
> 
> 
> Those both lines repeat themselfes over the past few days...

If not before then I guess you installed an extension that has some 
blank lines before the <?php or after the final ?> that is included and 
that prevents header() methods to be used issuing.

This has nothing with TYPO3. Google for it if you want more details.

-- 
Xavier Perseguers
http://xavier.perseguers.ch/en/tutorials/typo3.html