Letters Numbers and I want to add more,

[Gayner]

function lnonly($string) {
$eregi = eregi_replace("([A-Z0-9]+)","",$string);
if(empty($eregi)){
return true;
}
return false;
}

 

So that's only for LEtters and numbers right.

 

 

But I want to add more available characters. like let's say i want people to use the ₧ code, or maybe a @ Sign, how would i add it so it's usable in that string?very confusing

[mikesta707]

add the characters to the pattern?

"([A-Z0-9@]+)"

[Gayner]

add the characters to the pattern?

"([A-Z0-9@]+)"

 

So they can still register with username hey@rofl ?

 

 

[mikesta707]

$string = "adf9a8sdf__--==..,,''@";
$eregi = preg_replace("([^A-Za-z0-9@]+)","",$string);
echo $eregi

 

adf9a8sdf@

[/code]