pg_get_result

(PHP 4 >= 4.2.0, PHP 5)

pg_get_result --  Get asynchronous query result

Описание

resource pg_get_result ( [resource connection] )

pg_get_result() gets the result resource from an asynchronous query executed by pg_send_query(), pg_send_query_params() or pg_send_execute().

pg_send_query() and the other asynchronous query functions can send multiple queries to a PostgreSQL server and pg_get_result() is used to get each query's results, one by one.

Список параметров

connection

PostgreSQL database connection resource.

Возвращаемые значения

The result resource, or FALSE if no more results are available.

Примеры

Пример 1. pg_get_result() example

<?php
  $dbconn = pg_connect("dbname=publisher") or die("Could not connect");

  if (!pg_connection_busy($dbconn)) {
     pg_send_query($dbconn, "select * from authors; select count(*) from authors;");
  }
 
  $res1 = pg_get_result($dbconn);
  echo "First call to pg_get_result(): $res1\n";
  $rows1 = pg_num_rows($res1);
  echo "$res1 has $rows1 records\n\n";
 
  $res2 = pg_get_result($dbconn);
  echo "Second call to pg_get_result(): $res2\n";
  $rows2 = pg_num_rows($res2);
  echo "$res2 has $rows2 records\n";
?>

Результат выполнения данного примера:

First call to pg_get_result(): Resource id #3
Resource id #3 has 3 records

Second call to pg_get_result(): Resource id #4
Resource id #4 has 1 records

Смотрите также

pg_send_query()



pg_get_result
william at 25thandClement dot com
27-Jan-2005 03:03
There is no way to poll/wait for a notification to come in. You either have to enter a busy loop or sleep. Both options are horrible. It would be nice for PHP to provide access to PQsocket so one could select() on the socket connection. This is how it's done from C or Perl.

<pg_get_pidpg_host>
 Last updated: Tue, 15 Nov 2005