PHP 手册
后退 |  | 前进

# maxdb_thread_id

(PECL)

maxdb_thread_id

(no version information, might be only in CVS)

maxdb->thread_id -- Returns the thread ID for the current connection

## Description

Procedural style:

int maxdb_thread_id ( resource link )

Object oriented style (property):

class maxdb {
int thread_id
}

The maxdb_thread_id() function returns the thread ID for the current connection which can then be killed using the maxdb_kill() function. If the connection is lost and you reconnect with maxdb_ping(), the thread ID will be other. Therefore you should get the thread ID only when you need it.

> 注: The thread ID is assigned on a connection-by-connection basis. Hence, if the connection is broken and then re-established a new thread ID will be assigned.

## Return values

maxdb_thread_id() returns the Thread ID for the current connection.

## See also

maxdb_kill()

## Example

例子 1. Object oriented style

`<?php
$maxdb = new maxdb("localhost", "MONA", "RED", "DEMODB");
/* check connection */
if (maxdb_connect_errno()) {
printf("Connect failed: %s\n", maxdb_connect_error());
exit();
}
/* determine our thread id */
$thread_id = $maxdb->thread_id;
/* Kill connection */
$maxdb->kill($thread_id);
/* This should produce an error */
if (!$maxdb->query("CREATE TABLE mycity LIKE hotel.city")) {
printf("Error: %s\n", $maxdb->error);
exit;
}
/* close connection */
$maxdb->close();
?>`

例子 2. Procedural style

`<?php
$link = maxdb_connect("localhost", "MONA", "RED", "DEMODB");
/* check connection */
if (maxdb_connect_errno()) {
printf("Connect failed: %s\n", maxdb_connect_error());
exit();
}
/* determine our thread id */
$thread_id = maxdb_thread_id($link);
/* Kill connection */
maxdb_kill($link, $thread_id);
/* This should produce an error */
if (!maxdb_query($link, "CREATE TABLE mycity LIKE hotel.city")) {
printf("Error: %s\n", maxdb_error($link));
exit;
}
/* close connection */
maxdb_close($link);
?>`

The above examples would produce the following output:

    Warning: maxdb_query(): -10821 Session not connected <...>
    Error: Session not connected

后退 | 起点 | 前进
maxdb_store_result | 上一级 | maxdb_thread_safe