连接到硬件的php项目
我正在尝试用 php 构建一个时间表系统，在预先指定的时间将触发警报... php/html 中的编程部分用于创建时间表并连接到数据库对我来说很容易，但我不知道我需要什么硬件。
我想我需要一些连接到网络服务器和警报器的设备，将 php 代码“翻译”为触发警报的电信号。 有人知道这个设备是什么吗？我在哪里可以获得它？我走在正确的轨道上吗？ 我能找到有 php API 的东西吗？
预先感谢您的时间和帮助
i am trying to build a schedule system in php that on pre-specified times will trigger an alarm...
the programming part in php/html in order to create a schedule and to connect to a database is easy for me but what i have no idea what is the required hardware that i need.
i think i need some device that will be connected to the webserver and to the alarm that will "translate" php code to an electrical signal that will trigger the alarm.
have anyone got any idea what this device is? where can i acquire it? am i on the right track?
can i find something that has a php API ?
thanks in advance for your time and help
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您可以尝试使用连接在串行端口上的警报器（如果您有一定的电气技能，它们应该很容易掌握）。
有通过串行端口连接的继电器板，您基本上可以用它们触发任何东西。
另请查看 http://www.serialporttool.com/RelayTimerInfo.htm
用于与串行端口，您可以尝试使用 http: //www.phpclasses.org/package/3679-PHP-Communicate-with-a-serial-port.html 。我在尝试通过串行命令与手机交互时使用过这个类，但它没有按预期工作，但我很确定这是手机的故障（我在使用其他工具时也遇到了问题）
You may try and use an alarm connected on the serial port(they should be pretty easy to master if you have some electrical skills).
There are relay boards that connect through the serial port, and you can trigger basically anything with them.
Also take a look at http://www.serialporttool.com/RelayTimerInfo.htm
For comunicating with the serial port, you can try and use http://www.phpclasses.org/package/3679-PHP-Communicate-with-a-serial-port.html . I used this class once when trying to interface with a phone via serial commands and it did not work as expected, but i'm pretty sure it was the phone's fault (i had problems with other tools as well)