PHP HTTP Status

<?function HTTPStatus($num) {      static $http = array (       100 => "HTTP/1.1 100 Continue",       101 => "HTTP/1.1 101 Switching Protocols",       200 => "HTTP/1.1 200 OK",       201 => "HTTP/1.1 201 Created",       202 => "HTTP/1.1 202 Accepted",       203 => "HTTP/1.1 203 Non-Authoritative Information",       204 => "HTTP/1.1 204 No Content",       205 => "HTTP/1.1 205 Reset Content",       206 => "HTTP/1.1 206 Partial Content",       300 => "HTTP/1.1 300 Multiple Choices",       301 => "HTTP/1.1 301 Moved Permanently",       302 => "HTTP/1.1 302 Found",       303 => "HTTP/1.1 303 See Other",       304 => "HTTP/1.1 304 Not Modified",       305 => "HTTP/1.1 305 Use Proxy",       307 => "HTTP/1.1 307 Temporary Redirect",       400 => "HTTP/1.1 400 Bad Request",       401 => "HTTP/1.1 401 Unauthorized",       402 => "HTTP/1.1 402 Payment Required",       403 => "HTTP/1.1 403 Forbidden",       404 => "HTTP/1.1 404 Not Found",       405 => "HTTP/1.1 405 Method Not Allowed",       406 => "HTTP/1.1 406 Not Acceptable",       407 => "HTTP/1.1 407 Proxy Authentication Required",       408 => "HTTP/1.1 408 Request Time-out",       409 => "HTTP/1.1 409 Conflict",       410 => "HTTP/1.1 410 Gone",       411 => "HTTP/1.1 411 Length Required",       412 => "HTTP/1.1 412 Precondition Failed",       413 => "HTTP/1.1 413 Request Entity Too Large",       414 => "HTTP/1.1 414 Request-URI Too Large",       415 => "HTTP/1.1 415 Unsupported Media Type",       416 => "HTTP/1.1 416 Requested range not satisfiable",       417 => "HTTP/1.1 417 Expectation Failed",       500 => "HTTP/1.1 500 Internal Server Error",       501 => "HTTP/1.1 501 Not Implemented",       502 => "HTTP/1.1 502 Bad Gateway",       503 => "HTTP/1.1 503 Service Unavailable",       504 => "HTTP/1.1 504 Gateway Time-out"           );      header($http[$num]);}HTTPStatus(301);?>