is_ssl()

最后更新于：2021-11-27 11:15:28

is_ssl()

Determines if SSL is used.

响应

(bool) True if SSL, otherwise false.

源文件

文件: gc-includes/load.php

function is_ssl() {
	if ( isset( $_SERVER['HTTPS'] ) ) {
		if ( 'on' === strtolower( $_SERVER['HTTPS'] ) ) {
			return true;
		}

		if ( '1' == $_SERVER['HTTPS'] ) {
			return true;
		}
	} elseif ( isset( $_SERVER['SERVER_PORT'] ) && ( '443' == $_SERVER['SERVER_PORT'] ) ) {
		return true;
	}
	return false;
}

function gcdocs_maybe_is_ssl() {
    // cloudflare
    if ( ! empty( $_SERVER['HTTP_CF_VISITOR'] ) ) {
        $cfo = json_decode( $_SERVER['HTTP_CF_VISITOR'] );
        if ( isset( $cfo->scheme ) && 'https' === $cfo->scheme ) {
            return true;
        }
    }

    // other proxy
    if ( ! empty( $_SERVER['HTTP_X_FORWARDED_PROTO'] ) && 'https' === $_SERVER['HTTP_X_FORWARDED_PROTO'] ) {
        return true;
    }

    return function_exists( 'is_ssl' ) ? is_ssl() : false;
}