register a variable through a hook

[kh99]

Originally Posted by emath

now i dont get an error though this if :

<vb:if condition="$diffPrev['bool']=true"> 555 </vb:if>

always gives true (even if in the last URL didnt have "pitronot" in it)

You need to use == instead of = (or don't compare it to true at all, since it's a boolean).

and this : {vb:raw $diffPrev.bool} gives nothing .

You don't need the $ there.

btw, why do i need to preRegister the variable if its a hook ?

Basically you need to preregister unless you're rendering your own template, in which case you can use register() when you're doing the rendering.