was hälst Du von folgender Idee

PHP-Code:
dcl-s    $arr       char(3dim(100);

$arr(01) = 'AAA';   
                    
myproc(%addr($arr));

dcl-proc myproc;                                        
dcl-pi *n;                                              
        
array_p     pointer const;                      
end-pi;                                                 
                                                        
dcl-s   piarr       like($arrdim(100based(array_p); 
                                                        
  
piarr(02) = 'BBB';                                    
                                                        
end-proc
Viele Grüße
Rainer