Meanings of HTTP codes of web servers

Meanings of HTTP codes of web servers

  'Continue',            101 => 'Switching Protocols',            102 => 'Processing',            200 => 'OK',            201 => 'Created',            202 => 'Accepted',            203 => 'Non-Authoritative Information',            204 => 'No Content',            205 => 'Reset Content',            206 => 'Partial Content',            207 => 'Multi-Status',            300 => 'Multiple Choices',            301 => 'Moved Permanently',            302 => 'Found',            303 => 'See Other',            304 => 'Not Modified',            305 => 'Use Proxy',            307 => 'Temporary Redirect',            400 => 'Bad Request',            401 => 'Unauthorized',            402 => 'Payment Required',            403 => 'Forbidden',            404 => 'Not Found',            405 => 'Method Not Allowed',            406 => 'Not Acceptable',            407 => 'Proxy Authentication Required',            408 => 'Request Timeout',            409 => 'Conflict',            410 => 'Gone',            411 => 'Length Required',            412 => 'Precondition Failed',            413 => 'Request Entity Too Large',            414 => 'Request-URI Too Long',            415 => 'Unsupported Media Type',            416 => 'Requested Range Not Satisfiable',            417 => 'Expectation Failed',            422 => 'Unprocessable Entity',            423 => 'Locked',            424 => 'Failed Dependency',            426 => 'Upgrade Required',            500 => 'Internal Server Error',            501 => 'Not Implemented',            502 => 'Bad Gateway',            503 => 'Service Unavailable',            504 => 'Gateway Timeout',            505 => 'HTTP Version Not Supported',            506 => 'Variant Also Negotiates',            507 => 'Insufficient Storage',            509 => 'Bandwidth Limit Exceeded',            510 => 'Not Extended'        );    }     if ($status_codes[$statusCode] !== null) {        $status_string = $statusCode . ' ' . $status_codes[$statusCode];        header($_SERVER['SERVER_PROTOCOL'] . ' ' . $status_string, true, $statusCode);    }}?>