Don't stop executing php when page loading stopped

There is an function, but i can't remember it's name.

[Seregwethrin]

Hello friends;

There is an php function, i saw it but i can't remember it's name.

When you close the page, or stop loading page, php continue generating the page.

What is the name of function :/? Do you know?

Thanks.

[Seregwethrin]

Oww i found the function.

ignore_user_abort()
[tr2.php.net ]

Thanks for reading again.

[Habtom]

Does this function consume more resources as compared to running on a cron job? There seems to be a reason why it is not mentioned as cron job alternative that frequently? Any ideas?