Update sap table using a function module call by php code

Question

Hello,
I m trying to update the table VBAP using a function module ZZ_SET_DISTANCE  call by a php code.
But I have this problem:
the saprfc seems to work well but when I look to the table VBAP the fields have not been update.
I tried the function module in debug mode and it work good. The fields are update.
I also handle the saprfc call function and the return SAPRFC_OK
This are the function module ZZ_SET_DISTANCE, and the php code
//PHP CODE
$fce = saprfc_function_discover($sap,"ZZ_SET_DISTANCE");
              if (! $fce ) {echo "Echec d'ouverture du module fonction "; exit;}
               saprfc_import ($fce,"COMMANDE", '0000001998');
               saprfc_table_init($fce,"TBLE_CMDE");
                    $val=array();
                    $val['NUM_POST']='000030';
                    $val['HN_EXP']='';
                    $val['ST_EXP']='';
                    $val['PC_EXP']='';
                    $val['CI_EXP']='';
                    $val['CO_EXP']='';
                    $val['HN_REC']='';
                    $val['ST_REC']='';
                    $val['PC_REC']='';
                    $val['CI_REC']='';
                    $val['CO_REC']='';
                    $val['DIST']='popo';
                    saprfc_table_append ($fce,"TBLE_CMDE", $val);
             $rfc_rc = saprfc_call_and_receive ($fce);
             echo "\n".$rfc_rc;
             if ($rfc_rc != SAPRFC_OK) { if ($sap == SAPRFC_EXCEPTION ) echo ("Exception raised: ".saprfc_exception($fce)); else echo (saprfc_error($fce)); }else{echo '/execution de la function ;}
             saprfc_function_free($fce);
//FUNCTION MODULE ZZ_SET_DISTANCE
FUNCTION ZZ_SET_DISTANCE.
""Local Interface:
*"  IMPORTING
*"     VALUE(COMMANDE) TYPE  VBELN
*"  TABLES
*"      TBLE_CMDE STRUCTURE  ZADD_COM_LOXAN
DATA : NUMC TYPE VBELN.
NUMC = COMMANDE .
WHILE STRLEN( NUMC ) < 10 .
  CONCATENATE '0' NUMC INTO NUMC .
ENDWHILE .
DATA tble_addrcomm LIKE LINE OF TBLE_CMDE .
LOOP AT  TBLE_CMDE INTO  tble_addrcomm.
  DATA : NUMP TYPE POSNR.
  NUMP = tble_addrcomm-NUM_POST.
  WHILE STRLEN( NUMP ) < 6 .
  CONCATENATE '0' NUMP INTO NUMP .
  ENDWHILE .
  UPDATE VBAP SET ARKTX = tble_addrcomm-DIST
  WHERE VBELN EQ COMMANDE
  AND POSNR EQ NUMP.
ENDLOOP.
ENDFUNCTION.
Is anybody can help me?
thank.

Answer 1

Marie, create a Blog please, about more details for dummies....
1) how to connect to sap system?
2) you run the php code where? in a webserver or where?
3) wich is the url for run the FM: ZZ_SET_DISTANCE
4) you placed some dlls files on the web server?
please is interesting this...
Thanks