wp_get_server_protocol()

Return the HTTP protocol sent by the server.

Return

(string) The HTTP protocol. Default: HTTP/1.0.

Source

File: wp-includes/load.php 

function wp_get_server_protocol() {
	$protocol = $_SERVER['SERVER_PROTOCOL'];
	if ( ! in_array( $protocol, array( 'HTTP/1.1', 'HTTP/2', 'HTTP/2.0' ) ) ) {
		$protocol = 'HTTP/1.0';
	}
	return $protocol;
}

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Related

Used By

Used By
Used By Description
wp-includes/load.php: wp_check_php_mysql_versions()

Check for the required PHP version, and the MySQL extension or a database drop-in.
wp-includes/load.php: wp_maintenance()

Die with a maintenance message when conditions are met.
wp-includes/functions.php: status_header()

Set HTTP status header.

Changelog

Changelog
Version Description
WP-4.4.0 Introduced.