pg_get_result

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

pg_get_result 取得异步查询结果

说明

pg_get_result(PgSql\Connection $connection): PgSql\Result|false

pg_get_result() 从由 pg_send_query()pg_send_query_params()pg_send_execute() 执行的异步查询中获取 PgSql\Result 实例。

pg_send_query() 和其它异步查询函数可以向 PostgreSQL 服务器发送多个查询,而 pg_get_result() 则用来逐个获取查询结果。

参数

connection

PgSql\Connection 实例。

返回值

PgSql\Result 实例,或者没有更多查询结果,则返回 false

更新日志

版本 说明
8.1.0 现在返回 PgSql\Result 实例,之前返回 resource
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_get_result() 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";

$res2 = pg_get_result($dbconn);
echo
"Second call to pg_get_result(): $res2\n";
$rows2 = pg_num_rows($res2);
echo
"$res2 has $rows2 records\n";
?>

以上示例会输出:

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

参见