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The first is a header that starts with the string "HTTP/" (case is not significant), which will be used to figure out the HTTP status code to send. In July 2004, the UK telecom provider BT Group deployed the Cleanfeed content blocking system, which returns a 404 error to any request for content identified as potentially illegal by the The client MAY repeat the request without modifications at any later time. 10.4.10 409 Conflict The request could not be completed due to a conflict with the current state of the https://tools.ietf.org/html/rfc2324. ^ Barry Schwartz (26 August 2014). "New Google Easter Egg For SEO Geeks: Server Status 418, I'm A Teapot".

The web site hosting server will typically generate a "404 Not Found" web page when a user attempts to follow a broken or dead link; hence the 404 error is one more hot questions question feed lang-php about us tour help blog chat data legal privacy policy work here advertising info mobile contact us feedback Technology Life / Arts Culture / Recreation An observer will not be able to distinguish between an existing PHP page returns 404 and a non-existing page. However, this specification does not define any standard for such automatic selection.

Return 404 Error Php

Otherwise (i.e., the conditional GET used a weak validator), the response MUST NOT include other entity-headers; this prevents inconsistencies between cached entity-bodies and updated headers. The response 417 Expectation Failed indicates the request should not be continued.[2] 101 Switching Protocols The requester has asked the server to switch protocols and the server has agreed to do IETF.

share|improve this answer answered Jan 12 '09 at 23:37 Gumbo 393k63541666 add a comment| up vote 1 down vote You're doing it right though it could use some refining. The status may be overridden by calling header() with a new status line at any time unless the HTTP headers have already been sent.

Note: There is a bug in The response body SHOULD include enough information for the user to recognize the source of the conflict. Php Plain Text Header Drupal.

IETF. 2014. Header( Http/1.0 404 Not Found ) sending the HTTP thing, 2. If the request method was not HEAD and the server wishes to make public why the request has not been fulfilled, it SHOULD describe the reason for the refusal in the http://stackoverflow.com/questions/437256/why-wont-my-php-app-send-a-404-error What is this cable hanging against the outer wall?

Relative URIs are NOT allowed

wrong: Location: /something.php?a=1
wrong: Location: ?a=1

It will make proxy server and http clients happier. up down -4 sk89q Php 404 Page Especially if you have URL rewriting. –Timo Huovinen Nov 30 '11 at 11:19 add a comment| up vote 1 down vote If you want the server’s default error page to be The first digit of the status code specifies one of five classes of response; an HTTP client must recognise these five classes at a minimum. Yahoo Ysearch Help page.

Header( Http/1.0 404 Not Found )

HTTP access authentication is explained in "HTTP Authentication: Basic and Digest Access Authentication" [43]. 10.4.9 408 Request Timeout The client did not produce a request within the time that the server https://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html Soft 404s are problematic for automated methods of discovering whether a link is broken. Return 404 Error Php Internet Engineering Task Force. 404 Header Example March 3, 2003.

Retrieved 16 October 2015. ^ "408". including your 404.php (not redirecting to it), and 3. The new URI is not a substitute reference for the originally requested resource and is not cached."

$code = 307;
// Beware that when used March 3, 2003. Php Header Location 301

Note: RFC 2068 was not clear that 305 was intended to redirect a single request, and to be generated by origin servers only. The shrink and his patient (Part 2) Why don't we see faster 7400 series chips? nginx 1.9.5 source code. According to HTTP specifications: "The client did not produce a request within the time that the server was prepared to wait.

Unless the request method was HEAD, the entity of the response SHOULD contain a short hypertext note with a hyperlink to the new URI(s). Php 404 Error Page Redirect Retrieved October 11, 2009. ^ a b "Using token-based authentication". Retrieved 16 October 2015. ^ "RFC2616 on status 414".

The response SHOULD include an entity containing a list of resource characteristics and location(s) from which the user or user agent can choose the one most appropriate.

The problem is, once the web server starts processing the PHP page, it's already passed the point where it would handle a 404 User: Hey, do you have anything for me A 404 error is often returned when pages have been moved or deleted. I'd assumed it used my 404 page. –Eric Sep 4 '09 at 20:17 @JW where the above code will be use ? Php 404 Redirect Htaccess If the status code is not specified, header('Location:') defaults to 302. up down 33 mandor at mandor dot net ¶10 years ago When using PHP to output an image,

What are the holes on the sides of a computer case frame for? Use this if you don't want your PDF to display in the browser (in IE). Redirecting is no good remedy. –Tom Lank. Unexpected 1xx status responses MAY be ignored by a user agent.

What are the Starfleet regulations on crew relationships or fraternizing? Retrieved 2016-01-09. ^ "ngx_http_special_response.c". RFC 2616. Since the redirection MAY be altered on occasion, the client SHOULD continue to use the Request-URI for future requests.

Tools.ietf.org. Retrieved October 24, 2009. ^ "Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content, Section 6.4". Look carefully, you may left DOCTYPE or any html comment before this line. Except when responding to a HEAD request, the server SHOULD include an entity containing an explanation of the error situation, and whether it is a temporary or permanent condition.

RFC 1945. What is a plural of "To Do"? "To-Dos" or "To-Does"? If the condition is temporary, the server SHOULD include a Retry- After header field to indicate that it is temporary and after what time the client MAY try again. 10.4.15 414 Retrieved February 8, 2015. ^ "Google API Standard Error Responses".

I'm too shy to ask, but will you say yes?