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PHP: pg_get_result - Manual
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Last updated: Thu, 31 May 2007

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pg_get_result

(PHP 4 >= 4.2.0, PHP 5)

pg_get_result — 非同期クエリの結果を取得する

説明

resource pg_get_result ( [resource $connection] )

pg_get_result() は、 pg_send_query()pg_send_query_params() あるいは pg_send_execute() で実行した非同期クエリから結果リソースを取得します。

pg_send_query() およびその他の非同期クエリ関数は、 複数のクエリを PostgreSQL サーバに送信することが可能です。クエリの結果を ひとつずつ取得するには、pg_get_result() を使用します。

パラメータ

connection

PostgreSQL データベースの接続リソース。

返り値

結果 resource を返します。結果がもうない場合に FALSE を返します。

例 1888. pg_get_result() の例

<?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";
?>

上の例の出力は以下となります。


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

    

参考

pg_send_query()



add a note add a note User Contributed Notes
pg_get_result
william at 25thandClement dot com
28-Jan-2005 08:03
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_host" width="11" height="7"/> <pg_get_pid
Last updated: Thu, 31 May 2007
 
 
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