getservbyname

PHP 4, PHP 5, PHP 7, PHP 8
getservbyname - Get port number associated with an Internet service and protocol
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getservbyname( string$service, string$protocol ): int|false

getservbyname returns the Internet port which corresponds to service for the specified protocol as per /etc/services.

Parameters

service

The Internet service name, as a string.

protocol

protocol is either "tcp" or "udp" (in lowercase).

Return Values

Returns the port number, or false if service or protocol is not found.

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