Convert more of PHP

src/php/ext/grpc/call.c

@@ -271,8 +271,7 @@ PHP_METHOD(Call, startBatch) {
   grpc_metadata_array recv_metadata;
   grpc_metadata_array recv_trailing_metadata;
   grpc_status_code status;
-  char *status_details = NULL;
+  grpc_slice status_details;
-  size_t status_details_capacity = 0;
   grpc_byte_buffer *message;
   int cancelled;
   grpc_call_error error;
@@ -384,8 +383,8 @@ PHP_METHOD(Call, startBatch) {
                                1 TSRMLS_CC);
           goto cleanup;
         }
-        ops[op_num].data.send_status_from_server.status_details =
+        grpc_slice send_status_details = grpc_slice_from_copied_string(Z_STRVAL_P(inner_value));
-            Z_STRVAL_P(inner_value);
+        ops[op_num].data.send_status_from_server.status_details = &send_status_details;
       } else {
         zend_throw_exception(spl_ce_InvalidArgumentException,
                              "String status details is required",
@@ -405,8 +404,6 @@ PHP_METHOD(Call, startBatch) {
       ops[op_num].data.recv_status_on_client.status = &status;
       ops[op_num].data.recv_status_on_client.status_details =
           &status_details;
-      ops[op_num].data.recv_status_on_client.status_details_capacity =
-          &status_details_capacity;
       break;
     case GRPC_OP_RECV_CLOSE_ON_SERVER:
       ops[op_num].data.recv_close_on_server.cancelled = &cancelled;