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PHP getprotobyname

PHP original manual for getprotobyname [ show | php.net ]

getprotobyname

(PHP 4, PHP 5, PHP 7)

getprotobyname — Get protocol number associated with protocol name

Description

int getprotobyname ( string $name )

getprotobyname() returns the protocol number associated with the protocol name as per /etc/protocols.

Parameters

name

The protocol name.

Return Values

Returns the protocol number, or FALSE on failure.

Examples

Example #1 getprotobyname() example

<?php
$protocol = 'tcp';
$get_prot = getprotobyname($protocol);
if ($get_prot === FALSE) {
    echo 'Invalid Protocol';
} else {
    echo 'Protocol #' . $get_prot;
}
?>

See Also