error_reporting, ini_set

[drag0n]

Hi
I am having alot of trouble with error_reporting and ini_set functions with php.
I turned error_reporting in php.ini to E_COMPILE_ERROR|E_ERROR|E_CORE_ERROR
but still it doesnt display the parse errors sometimes and I would like to turn error notice to E_ALL for specific scripts while developing, so I used error_reporting(E_ALL) but it doesnt work, it still comes up as blank page.
Are there specific requirements for using those functions?
Thanks

[LordShryku]

Is display_errors set to "On" in the php.ini file?

[drag0n]

yep