private function getCallable($variable = '$value')
    {
        $tpl = $this->strictCallables ? self::STRICT_IS_CALLABLE : self::IS_CALLABLE;

        return sprintf($tpl, $variable, $variable);
    }
private function getCallable($variable = '$value')
    {
        $tpl = $this->strictCallables ? self::STRICT_IS_CALLABLE : self::IS_CALLABLE;

        return sprintf($tpl, $variable, $variable);
    }
private function getCallable ( $ variable = '$value' ) { $ tpl = $ this -> strictCallables ? self :: STRICT_IS_CALLABLE : self :: IS_CALLABLE ; return sprintf ( $ tpl , $ variable , $ variable ) ; }
Helper function to compile strict vs lax "is callable" logic.

@param string $variable (default: '$value')

@return string "is callable" logic
Helper function to compile strict vs lax is callable logic .