How to convert normal text into html entities text?

[eluser]suba[/eluser]
Hi,
$str="Hello\' welcome, CI";

i want to convert html entities text.
Pls inform which helper or which class has this functionality?
pls help.

[eluser]steelaz[/eluser]
You don't need CI for that, PHP has built-in functions to encode and decode html entities - http://us3.php.net/manual/en/function.htmlentities.php