Read Environment Variables Groups

Reads all variables with the same name, e.g. set from a multiple select.

1 W3START         (I4)        /* io/m : Offset to be started at
*                             /*        out: 0 no occurrences
*                             /*        out: >0 more occurrences
1 W3NAME          (A) DYNAMIC /* i /m : Name of variable
1 W3VALUESERVER   (A1)        /* i /m : Search for variables in
*                             /*        'S' server
*                             /*        'P' page or URL 
*                             /*        ' ' both
1 W3ARRAYCOUNTER  (I4)        /* io/m : Length of array,
                              /*        returned values
1 W3ARRAYVALUES   (A250/1:V)  /*  o/m : Values of variable
1 W3ARRAYMAXIMUM  (I4)        /*  o/m : Total number of variables

PERFORM W3READ-ENVIRONMENT-GROUP W3START W3NAME
      W3VALUESERVER W3ARRAYCOUNTER
      W3ARRAYVALUES(*) W3ARRAYMAXIMUM