Error

PHP Warningyii\base\ErrorException

Cannot modify header information - headers already sent by (output started at /home/bestwebdesign/public_html/systra.in/index.php:1)

$_GET = [
    '/rss-career' => '',
];

$_SERVER = [
    'CONTEXT_DOCUMENT_ROOT' => '/home/bestwebdesign/public_html',
    'CONTEXT_PREFIX' => '',
    'DOCUMENT_ROOT' => '/home/bestwebdesign/public_html',
    'GATEWAY_INTERFACE' => 'CGI/1.1',
    'HTTPS' => 'on',
    'HTTP_ACCEPT' => 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',
    'HTTP_ACCEPT_ENCODING' => 'gzip',
    'HTTP_CONNECTION' => 'Keep-Alive',
    'HTTP_HOST' => 'bestwebdesignoutsourcing.com',
    'HTTP_IF_MODIFIED_SINCE' => 'Tue, 21 Aug 2018 08:45:25 GMT',
    'HTTP_USER_AGENT' => 'CCBot/2.0 (https://commoncrawl.org/faq/)',
    'PATH' => '/bin:/usr/bin',
    'PHP_INI_SCAN_DIR' => '/opt/cpanel/ea-php71/root/etc:/opt/cpanel/ea-php71/root/etc/php.d:.',
    'QUERY_STRING' => '/rss-career',
    'REDIRECT_HTTPS' => 'on',
    'REDIRECT_QUERY_STRING' => '/rss-career',
    'REDIRECT_SSL_TLS_SNI' => 'bestwebdesignoutsourcing.com',
    'REDIRECT_STATUS' => '200',
    'REDIRECT_UNIQUE_ID' => 'W8-Z3ndLvebiAPDMGl6kewAAAAo',
    'REDIRECT_URL' => '/systra.in/rss-career',
    'REMOTE_ADDR' => '54.161.77.30',
    'REMOTE_PORT' => '50356',
    'REQUEST_METHOD' => 'GET',
    'REQUEST_SCHEME' => 'https',
    'REQUEST_URI' => '/systra.in/rss-career',
    'SCRIPT_FILENAME' => '/home/bestwebdesign/public_html/systra.in/index.php',
    'SCRIPT_NAME' => '/systra.in/index.php',
    'SERVER_ADDR' => '162.144.209.208',
    'SERVER_ADMIN' => 'webmaster@bestwebdesignoutsourcing.com',
    'SERVER_NAME' => 'bestwebdesignoutsourcing.com',
    'SERVER_PORT' => '443',
    'SERVER_PROTOCOL' => 'HTTP/1.1',
    'SERVER_SIGNATURE' => '',
    'SERVER_SOFTWARE' => 'Apache',
    'SSL_TLS_SNI' => 'bestwebdesignoutsourcing.com',
    'TZ' => 'UTC',
    'UNIQUE_ID' => 'W8-Z3ndLvebiAPDMGl6kewAAAAo',
    'PHP_SELF' => '/systra.in/index.php',
    'REQUEST_TIME_FLOAT' => 1540348382.1766850948333740234375,
    'REQUEST_TIME' => 1540348382,
    'argv' => [
        '/rss-career',
    ],
    'argc' => 1,
];