Merge pull request #5805 from stanley-cheung/php-fix-arg-type

PHP: return channel arg type

src/php/ext/grpc/channel.c

@@ -110,9 +110,11 @@ void php_grpc_read_args_array(zval *args_array, grpc_channel_args *args) {
     switch (Z_TYPE_P(*data)) {
       case IS_LONG:
         args->args[args_index].value.integer = (int)Z_LVAL_P(*data);
+        args->args[args_index].type = GRPC_ARG_INTEGER;
         break;
       case IS_STRING:
         args->args[args_index].value.string = Z_STRVAL_P(*data);
+        args->args[args_index].type = GRPC_ARG_STRING;
         break;
       default:
         zend_throw_exception(spl_ce_InvalidArgumentException,