php-fpm and nginx: How to set display_errors = on but also get HTTP 500?-CodePudding

Due to development needs, I want to display PHP errors loud and clear to the browser. So I set my php.ini:

display_errors = on

This works as expected.

But this messes up the Nginx status code if there is an error. As commented here https://www.php.net/manual/en/errorfunc.configuration.php#126734 :

It's important to note that when display_errors is "on", PHP will send a HTTP 200 OK status code even when there is an error.

I already tried to set fastcgi_intercept_errors on (or off) as reccomended somewhere else, but it doesn't seem to make any difference.

So, the question is: how can I have both display_errors = on and HTTP 500 on errors?

My relevant Nginx config is:

location ~ \.php$ {
  try_files  $uri =404;
  include fastcgi_params;
  fastcgi_intercept_errors on;
  fastcgi_pass unix:/run/php/php-fpm.sock;
  fastcgi_param  SCRIPT_FILENAME  $request_filename;
}

Tests

I created a PHP file with a missing semicolon for testing. The PHP error is

Parse error: syntax error, unexpected end of file in test.php on line 2

PHP error with display_errors = on

Nginx returns 200 eve if there is an error:

192.168.0.1 - - [27/Sep/2022:08:50:49  0200] "GET /test.php HTTP/2.0" 200 304 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/106.0.0.0 Safari/537.36"

PHP error with display_errors = off

Nginx returns 500:

192.168.0.1 - - [27/Sep/2022:08:53:52  0200] "GET /test.php HTTP/2.0" 500 0 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/106.0.0.0 Safari/537.36"

CodePudding user response：

Have you tried to put:

ini_set('display_errors', 1);
ini_set('display_startup_errors', 1);
error_reporting(E_ALL);

on top of you`re php page?

CodePudding user response：

You should set the default status to 500.

At the beginning of the code put http_response_code(500);

At the end of the code put http_response_code(200);

May be like this

http_response_code( 500);
ini_set('display_errors', 'on');
http_response_code( 200);