How can I create an error 404?

04/15/2020 04:30:01

My .htaccess redirects all requests to /word_here to /page.php?name=word_here. The PHP script then checks if the requested page is in its array of pages.

If not, how can I simulate an error 404? I tried this, but it didn't result in my 404 page configured via ErrorDocument in the .htaccess showing up.

header($_SERVER["SERVER_PROTOCOL"]." 404 Not Found");

Am I right in thinking that it's wrong to redirect to my error 404 page?

Verified Answer (142 Votes)

01/11/2017 19:28:26

The up-to-date answer (as of PHP 5.4 or newer) for generating 404 pages is to use http_response_code:

include('my_404.php'); // provide your own HTML for the error page

die() is not strictly necessary, but it makes sure that you don't continue the normal execution.


Answer #2 (87 Votes)

09/05/2009 01:50:01

What you're doing will work, and the browser will receive a 404 code. What it won't do is display the "not found" page that you might be expecting, e.g.:

Not Found

The requested URL /test.php was not found on this server.

That's because the web server doesn't send that page when PHP returns a 404 code (at least Apache doesn't). PHP is responsible for sending all its own output. So if you want a similar page, you'll have to send the HTML yourself, e.g.:

header($_SERVER["SERVER_PROTOCOL"]." 404 Not Found", true, 404);

You could configure Apache to use the same page for its own 404 messages, by putting this in httpd.conf:

ErrorDocument 404 /notFound.php

Answer #3 (22 Votes)

09/05/2009 01:36:11

Try this:

header("HTTP/1.0 404 Not Found");
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