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Stomp::readFrame
stomp_read_frame
(PECL stomp >= 0.1.0)
Stomp::readFrame -- stomp_read_frame — Reads the next frame
说明
面向对象风格 (method):
public Stomp::readFrame(string$class_name = "stompFrame"): stompframe
过程化风格:
stomp_read_frame(resource$link): array
Reads the next frame. It is possible to instantiate an object of a specific class, and pass parameters to that class's constructor.
参数
-
link -
仅对过程化样式：由 stomp_connect() 返回的 stomp 连接标识符。
-
class_name -
The name of the class to instantiate. If not specified, a stompFrame object is returned.
返回值
注意:
A transaction header may be specified, indicating that the message acknowledgment should be part of the named transaction.
更新日志
| 版本 | 说明 |
|---|---|
| Stomp 0.4.0 |
class_name parameter was added.
|
范例
示例 #1 面向对象风格
<?php
/* connection */
try {
$stomp = new Stomp('tcp://localhost:61613');
} catch(StompException $e) {
die('Connection failed: ' . $e->getMessage());
}
/* subscribe to messages from the queue 'foo' */
$stomp->subscribe('/queue/foo');
/* read a frame */
var_dump($stomp->readFrame());
/* close connection */
unset($stomp);
?>
以上例程的输出类似于：
object(StompFrame)#2 (3) {
["command"]=>
string(7) "MESSAGE"
["headers"]=>
array(5) {
["message-id"]=>
string(41) "ID:php.net-55293-1257226743606-4:2:-1:1:1"
["destination"]=>
string(10) "/queue/foo"
["timestamp"]=>
string(13) "1257226805828"
["expires"]=>
string(1) "0"
["priority"]=>
string(1) "0"
}
["body"]=>
string(3) "bar"
}
示例 #2 过程化风格
<?php
/* connection */
$link = stomp_connect('ssl://localhost:61612');
/* check connection */
if (!$link) {
die('Connection failed: ' . stomp_connect_error());
}
/* subscribe to messages from the queue 'foo' */
stomp_subscribe($link, '/queue/foo');
/* read a frame */
$frame = stomp_read_frame($link);
/* close connection */
stomp_close($link);
?>
以上例程的输出类似于：
array(3) {
["command"]=>
string(7) "MESSAGE"
["body"]=>
string(3) "bar"
["headers"]=>
array(6) {
["transaction"]=>
string(2) "t1"
["message-id"]=>
string(41) "ID:php.net-55293-1257226743606-4:3:-1:1:1"
["destination"]=>
string(10) "/queue/foo"
["timestamp"]=>
string(13) "1257227037059"
["expires"]=>
string(1) "0"
["priority"]=>
string(1) "0"
}
}
User Contributed Notes 1 note
up down 0 hasan dot ucak at gmail dot com ¶4 years ago
/* php.ini
[stomp]
stomp.default_connection_timeout_sec = 10
stomp.default_read_timeout_sec = 15
these values should not be left by default.
if queue server very busy and there is a lot message in queue ,
not respond to frame in two second.
*/
try {
$stomp = new Stomp(self::geturl, self::username, self::password,array('client-id'=> gethostname()."-".uniqid(mt_rand(), true)));
$stomp->subscribe(self::getqueue, array('selector' => sprintf(self::selector, $queue_id)));
/* read a frame */
$frame = $stomp->readFrame();
if ($frame) {
$stomp->ack($frame);
unset($stomp);
return $frame;
}
unset($stomp);
return false;
} catch (StompException $e) {
print ('Connection failed: ' . $e->getMessage());
unset($stomp);
return false;
}
/* close connection */
unset($stomp);
add a note
官方地址：https://www.php.net/manual/en/stomp.readframe.php