Problem populating PHP array from C extension

I'm having great difficulty in loading a PHP array from within my own C module, and thought someone here might be able to provide help. The code in question appears below. Here's a quick intro to the code segment - any observations would be most appreciated. The main function is 'cursor_init', which starts at line 8. It references the callback function 'PageAppend' (defined at line 2) to populate the array via calls to 'add_next_index_long'. Note that, because the PageAppend callback receives only a single long as it's input parameter the function first sets the global static pval pointer 'pagearray' to point to the PHP array variable (line 17). One thing I noted is that I'm not using a 'convert_to...' on the array variable when I enter the function because I can find no description of a 'convert_to_array' function call. Could this be a problem??? The real action happens on line 23 where I call 'CursorInit' (an external C function) with 'PageAppend' designated as the callback function. When I comment out line 3 to populate the array everything runs ok (of course the array isn't populated), however when I uncomment this line the httpd request completely bombs out. Any help would be greatly appreciated! -Rich Bryant === Code Appears Below Here === 1 static pval *pagearray; 2 static void PageAppend(long l1) { 3 add_next_index_long(pagearray,l1); 4 } 5 /* 6 proto cursor_init(); 7 */ 8 PHP_FUNCTION(cursor_init) { 9 pval *db, *stmt, *nRecs, *Sig, *TotalRecs, *PageArray; 10 char *errMsg, *new; 11 char signature[60]; 12 long l1, totalrecs; 13 if(ARG_COUNT(ht) != 6 || getParameters(ht, 6, &db,&stmt,&nRecs,&Sig,&TotalRecs,&PageArray) == FAILURE) { 14 WRONG_PARAM_COUNT; 15 } 16 // Note: TotalRecs, Sig and PageArray must be passed by reference. 17 pagearray = PageArray; // Est variable for callback function. 18 convert_to_string(db); 19 convert_to_string(stmt); 20 convert_to_string(Sig); 21 convert_to_long(nRecs); 22 convert_to_long(TotalRecs); 23 errMsg = CursorInit(db->value.str.val,stmt->value.str.val,nRecs->value.lval,signature, 60, &totalrecs, PageAppend); 24 if (errMsg==NULL) { 25 // Here set values returned by reference. 26 Sig->value.str.val = estrdup(signature); 27 TotalRecs->value.lval = totalrecs; 28 errMsg = ""; 29 } 30 l1 = (long)strlen(errMsg); 31 new = estrdup(errMsg); 32 RETURN_STRINGL(new,l1,0); 33 }