errors after upgrade vom 5.2.10 to 5.3.0 howto solve or hide?

Hi everyone! after upgrading vomn php 5.2.10 to 5.3.0 I get a lot of errors. I changed already in some files ereg_replace() to preg_replace(), but it generates more errors as you can see. The typo3 installation ins still working. So - how can I prevent php from printing out this errors on the beginning at the website? display_errors = Off in php.ini Any Ideas? Greetz. Warning: preg_replace() [function.preg-replace]: Delimiter must not be alphanumeric or backslash in /typo3_src-3.8.1/t3lib/class.t3lib_page.php on line 436 Warning: preg_replace() [function.preg-replace]: Delimiter must not be alphanumeric or backslash in /typo3_src-3.8.1/t3lib/class.t3lib_page.php on line 438 Warning: preg_replace() [function.preg-replace]: Delimiter must not be alphanumeric or backslash in /typo3_src-3.8.1/t3lib/class.t3lib_page.php on line 441 Deprecated: Function ereg_replace() is deprecated in /typo3_src-3.8.1/t3lib/class.t3lib_matchcondition.php on line 527 Deprecated: Function ereg_replace() is deprecated in /typo3_src-3.8.1/t3lib/class.t3lib_matchcondition.php on line 527 Deprecated: Function ereg() is deprecated in /typo3_src-3.8.1/t3lib/class.t3lib_div.php on line 801 Deprecated: Function ereg() is deprecated in /typo3_src-3.8.1/t3lib/class.t3lib_div.php on line 809 Deprecated: Function ereg() is deprecated in /typo3_src-3.8.1/t3lib/class.t3lib_div.php on line 801 Deprecated: Function ereg() is deprecated in /typo3_src-3.8.1/t3lib/class.t3lib_div.php on line 809 Deprecated: Function ereg() is deprecated in /typo3_src-3.8.1/t3lib/class.t3lib_div.php on line 801 Deprecated: Function ereg() is deprecated in /typo3_src-3.8.1/t3lib/class.t3lib_div.php on line 809 Deprecated: Function ereg() is deprecated in /typo3_src-3.8.1/typo3/sysext/cms/tslib/class.tslib_content.php on line 2748 Deprecated: Function ereg() is deprecated in /typo3_src-3.8.1/typo3/sysext/cms/tslib/class.tslib_content.php on line 2752 Deprecated: Function ereg() is deprecated in /typo3_src-3.8.1/t3lib/class.t3lib_div.php on line 801 Deprecated: Function ereg() is deprecated in /typo3_src-3.8.1/t3lib/class.t3lib_div.php on line 809 Deprecated: Function ereg() is deprecated in /typo3_src-3.8.1/t3lib/class.t3lib_stdgraphic.php on line 2097 Deprecated: Function ereg() is deprecated in /typo3_src-3.8.1/t3lib/class.t3lib_stdgraphic.php on line 2164 Deprecated: Function ereg() is deprecated in /typo3_src-3.8.1/t3lib/class.t3lib_div.php on line 801 Deprecated: Function ereg() is deprecated in /typo3_src-3.8.1/t3lib/class.t3lib_div.php on line 809 Deprecated: Function ereg() is deprecated in /typo3_src-3.8.1/t3lib/class.t3lib_stdgraphic.php on line 2097 Deprecated: Function ereg() is deprecated in /typo3_src-3.8.1/t3lib/class.t3lib_stdgraphic.php on line 2164 Deprecated: Function spliti() is deprecated in /typo3_src-3.8.1/t3lib/class.t3lib_parsehtml.php on line 227 Deprecated: Function eregi_replace() is deprecated in /typo3_src-3.8.1/t3lib/class.t3lib_div.php on line 1583 Deprecated: Function eregi_replace() is deprecated in /typo3_src-3.8.1/t3lib/class.t3lib_div.php on line 1585 Deprecated: Function split() is deprecated in /typo3_src-3.8.1/t3lib/class.t3lib_div.php on line 1598 Deprecated: Function ereg_replace() is deprecated in /typo3_src-3.8.1/t3lib/class.t3lib_div.php on line 1558 Deprecated: Function eregi_replace() is deprecated in /typo3_src-3.8.1/t3lib/class.t3lib_div.php on line 1583 Deprecated: Function eregi_replace() is deprecated in /typo3_src-3.8.1/t3lib/class.t3lib_div.php on line 1585 Deprecated: Function split() is deprecated in /typo3_src-3.8.1/t3lib/class.t3lib_div.php on line 1598 Deprecated: Function ereg_replace() is deprecated in /typo3_src-3.8.1/t3lib/class.t3lib_div.php on line 1558 Deprecated: Function eregi_replace() is deprecated in /typo3_src-3.8.1/t3lib/class.t3lib_div.php on line 1583 Deprecated: Function eregi_replace() is deprecated in /typo3_src-3.8.1/t3lib/class.t3lib_div.php on line 1585 Deprecated: Function split() is deprecated in /typo3_src-3.8.1/t3lib/class.t3lib_div.php on line 1598 Deprecated: Function split() is deprecated in /typo3_src-3.8.1/t3lib/class.t3lib_div.php on line 1598 Deprecated: Function ereg_replace() is deprecated in /typo3_src-3.8.1/t3lib/class.t3lib_div.php on line 1558 Deprecated: Function ereg_replace() is deprecated in /typo3_src-3.8.1/t3lib/class.t3lib_div.php on line 1558 Deprecated: Function eregi_replace() is deprecated in /typo3_src-3.8.1/t3lib/class.t3lib_div.php on line 1583 Deprecated: Function eregi_replace() is deprecated in /typo3_src-3.8.1/t3lib/class.t3lib_div.php on line 1585 Deprecated: Function split() is deprecated in /typo3_src-3.8.1/t3lib/class.t3lib_div.php on line 1598 Deprecated: Function split() is deprecated in /typo3_src-3.8.1/t3lib/class.t3lib_div.php on line 1598 Deprecated: Function ereg_replace() is deprecated in /typo3_src-3.8.1/t3lib/class.t3lib_div.php on line 1558 Deprecated: Function ereg_replace() is deprecated in /typo3_src-3.8.1/t3lib/class.t3lib_div.php on line 1558 Deprecated: Function spliti() is deprecated in /typo3_src-3.8.1/t3lib/class.t3lib_parsehtml.php on line 227 Deprecated: Function eregi_replace() is deprecated in /typo3_src-3.8.1/t3lib/class.t3lib_div.php on line 1583 Deprecated: Function eregi_replace() is deprecated in /typo3_src-3.8.1/t3lib/class.t3lib_div.php on line 1585 Deprecated: Function split() is deprecated in /typo3_src-3.8.1/t3lib/class.t3lib_div.php on line 1598 Deprecated: Function ereg_replace() is deprecated in /typo3_src-3.8.1/t3lib/class.t3lib_div.php on line 1558 Deprecated: Function eregi_replace() is deprecated in /typo3_src-3.8.1/t3lib/class.t3lib_div.php on line 1583 Deprecated: Function eregi_replace() is deprecated in /typo3_src-3.8.1/t3lib/class.t3lib_div.php on line 1585 Deprecated: Function call_user_method() is deprecated in /typo3_src-3.8.1/typo3/sysext/cms/tslib/class.tslib_content.php on line 5415 Deprecated: Function ereg() is deprecated in /typo3_src-3.8.1/t3lib/class.t3lib_div.php on line 801 Deprecated: Function ereg() is deprecated in /typo3_src-3.8.1/t3lib/class.t3lib_div.php on line 809 Warning: Cannot modify header information - headers already sent by (output started at /typo3_src-3.8.1/t3lib/class.t3lib_page.php:436) in 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