I cant work with áéíóú

[eluser]Unknown[/eluser]
Hi guys, im having a problem here again.

result that when i send values via $_POST

inside a controller I cant make an if like this

if($_POST['value'] == "ññññ") //if I submitted a value like "ññññ"
echo "match";
else
echo "not match";

NOT MATCH

if i a do this in the index.php before all the codeigniter configs

THE VALUE MATCH


So what configuration i need to make to codeigniter so he can work with ñ,áéíóú???


someone had the same issue?