Deprecated: Optional parameter $keys declared before required parameter $cms_id is implicitly treated as a required parameter in /home/www/dev/work/class/blog/CmsKey.php on line 75

Deprecated: Creation of dynamic property lvesu\lvesu\controller\blog\php::$title is deprecated in /home/www/dev/work/website/lvesu/class/controller/blog/php.php on line 28

Deprecated: Creation of dynamic property lvesu\lvesu\controller\blog\php::$outlink is deprecated in /home/www/dev/work/website/lvesu/template/blog/cms/php.manual.tpl on line 2

Deprecated: Creation of dynamic property lvesu\lvesu\controller\blog\php::$status is deprecated in /home/www/dev/work/website/lvesu/template/blog/index.head.php on line 2
PHP - Manual: pg_cancel_query - 互联网笔记

略微加速

PHP官方手册 - 互联网笔记

PHP - Manual: pg_cancel_query

2025-04-26

pg_cancel_query

(PHP 4 >= 4.2.0, PHP 5, PHP 7, PHP 8)

pg_cancel_query 取消异步查询

说明

pg_cancel_query(PgSql\Connection $connection): bool

pg_cancel_query() 取消由 pg_send_query()pg_send_query_params()pg_send_execute() 发送的异步查询。不能取消使用 pg_query() 执行的查询。

参数

connection

PgSql\Connection 实例。

返回值

成功时返回 true, 或者在失败时返回 false

更新日志

版本 说明
8.1.0 现在 connection 参数接受 PgSql\Connection 实例,之前接受 resource

示例

示例 #1 pg_cancel_query() 示例

<?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";

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

以上示例会输出:

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

参见

添加备注

用户贡献的备注

此页面尚无用户贡献的备注。

官方地址:https://www.php.net/manual/en/function.pg-cancel-query.php

北京半月雨文化科技有限公司.版权所有 京ICP备12026184号-3