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B. 获取PHP任意议定书的标准港口
原标题:Obtaining standard port for arbitrary protocols in PHP

I m 寻求一种功能,即接受一种体现URL(例如“http://www.un.org/“ftp”)计划部分的舱位,并返回标准港口。 可以这样使用:

echo get_port_from_protocol("http");  // 80

作为最后的手段,我相信我能通过<代码>/etc/services撰写一些内容。 (假定我只需要使用类似于UNIX的操作系统。)

但是,当然必须用一些东西来设计住房,而不是什么?

最佳回答
int getservbyname ( string $service , string $protocol )

http://php.net/manual/en/function.getservbyname.php

因此,你基本上可以这样做。

echo getservbyname("http", "tcp");
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