TYPO3 Core

I use 5.1.6 instead of 5.2.

same probleme here, php 5.1.6

Please have a look at the PHP error log. TYPO3 also logs PHP errors in its Log module.

PHP 5.2 is required since TYPO3 4.2, so please upgrade.

If you still encounter this problems with PHP 5.2, please mention it here.

can you tell me the location of t3 error logs please

We have the same problem with php-5.1.6.

In the error log we found:

PHP Fatal error: Call to undefined function filter_var() in [...]/typo3_src-4.2.11/t3lib/class.t3lib_div.php on line 1555

In other bug reports with the same problem it should be sufficient to install pecl-filter, in example #21971 . That was difficult to install and doesn't worked for us.

The following document is linked from <http://typo3.org/about/system-requirements/&gt;.

http://buzz.typo3.org/people/stucki/article/leaving-php4-behind/:

"If you are using PHP 5.1 then you might be in luck... We are aware that enterprise Linux distributions of Novell and RedHat do not ship with PHP 5.2 yet (they both come with 5.1). Therefore, we will avoid using PHP 5.2 any specific features in TYPO3 as long as they have not switched."

We use such enterprise linux: CentOS5/RHEL5, they have not switched for now. A PHP upgrade is difficult in such environment and may break other applications on the same server.

I think this is the same problem as in #21971.

Let's continue the discussion there!