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pg_cancel_query

(PHP 4 >= 4.2.0, PHP 5)

pg_cancel_query --  Cancel an asynchronous query

Описание

bool pg_cancel_query ( resource connection )

pg_cancel_query() cancels an asynchronous query sent with pg_send_query(), pg_send_query_params() or pg_send_execute(). You cannot cancel a query executed using pg_query().

Список параметров

connection

PostgreSQL database connection resource.

Возвращаемые значения

Возвращает TRUE в случае успешного завершения или FALSE в случае возникновения ошибки.

Примеры

Пример 1. pg_cancel_query() 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";
 
 
// Cancel the currently running query.  Will be the second query if it is
  // still running.
 
pg_cancel_query($dbconn);
?>

Результат выполнения данного примера:

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

Смотрите также

pg_send_query()
pg_connection_busy()



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pg_client_encoding> <pg_affected_rows
Last updated: Sat, 27 Jan 2007
 
 
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