PHP致命错误:找不到类"AMQPConnection"

我已经看过这个问题.这表明未安装AMQP PECL扩展.但是，我已经成功安装了RabbitMQ和内置的PECL AMQP扩展.以下是phpinfo()的输出.

I've already seen this question. It suggests that AMQP PECL extension is not installed. However, I have successfully installed both RabbitMQ as well as built PECL AMQP extension. The following is the output of the phpinfo().

您可以清楚地看到，AMQP已正确加载.但是，当我尝试建立连接时，它显示 PHP致命错误:找不到类'AMQPConnection'.下面是代码.

You can clearly see, AMQP is loaded correctly. However, when I try to establish a connection, it says PHP Fatal error: Class 'AMQPConnection' not found. Below is the code.

$connection = new AMQPConnection();

这是输出.

user@ubuntu:~$ php repos/default/test.php
PHP Fatal error:  Class 'AMQPConnection' not found in /home/user/repos/default/test.php on line 5

为什么会发生这种情况?有什么建议?谢谢.

Why this might happen? Any suggestions? Thank you.