PHP-如何制作PHP以在标题404上显示Web服务器404错误页面？

Question

I am using PHP for scripting, and sometimes I need to throw a "404 Not Found" status message. I have tried this:

<?php
header($_SERVER['SERVER_PROTOCOL']." 404 Not Found");
header("Location: 404.html");
exit();
?>

But it's redirecting the user to the 404.html page and I don't think it's good practice to do so. Instead, I would like to keep the user on the same page which he accessed, throw a 404 status code and show the 404.html contents.

I have also tried setting the error page in my rewrite rules, and it's working correctly. But I want PHP to show the 404 file's content along with a 404 status code.

I have also tried doing:

<?php
header($_SERVER['SERVER_PROTOCOL']." 404 Not Found");
exit(); 

But this gives only a 404 status code and a blank page. I would like to get the contents of a 404.html or 404.php file.

Answer 1

Use include to include the file with the 404 error message in it and set the header to 404. Please make sure you send the header before outputting anything else.

<?php
header($_SERVER["SERVER_PROTOCOL"]." 404 Not Found");
include("404.html");
exit(); // terminate the script
?>

Answer 2

Use file_get_contents :

header($_SERVER['SERVER_PROTOCOL'].file_get_content("404.html"));
exit(); 

Or just use echo:

echo file_get_content("404.html");
exit();

Answer 3

Maybe It's a better way do it with apache .htaccess file.

In .htaccess :

ErrorDocument 404 /not_found.html