[TYPO3] Persistent vars over multiple calls of postUserFunc

[Joerg Wagner]

Hello,

I need some variables that hold their value from on call of postUserFunc 
to the next call (only while rendering one SINGLE page - not over 
several pages - which would have to be done using session vars).

This works:

--
class user_functions{
   function user_myfunc($content, $conf){
     // store persistent value in a PHP global
     global $myGlobalVar;
     if(!isset($myGlobalVar)) $myGlobalVar=0;

     //... do something with $myGlobalVar
     $myGlobalVar++;
   }
}
--

But is this recommended? Very bad style to store persistent vars in globals!

So I tried using a class property, but this does not work:

--
class user_functions{
   var $myClassVar = 0;

   function user_myfunc($content, $conf){
     //... do something with $myClassVar
     $this->myClassVar++;
   }
}
--

This would be clean, but with each call of postUserFunc the variable is 
initialized to 0. Looks like the class is instantiated with each new 
call of postUserFunc, so class vars are not persistent.

Is there a recommended way to store intermediate results from one call 
of postUserFunc to the next? Something better than globals?

Cheers,
Jörg.