PHP-FPM sending empty response with Nginx on macOS - php

Question

I installed nginx 1.10.3 and php 5.5.38 as a development server on macOS 10.12.4
When I try a test php file in my browser the body is empty but the response headers seem ok:
HTTP/1.1 200 OK
Server: nginx/1.10.3
Date: Wed, 29 Mar 2017 11:35:21 GMT
Content-Type: text/html
Transfer-Encoding: chunked
Connection: keep-alive
X-Powered-By: PHP/5.5.38
There are no errors in php-fpm.log or nginx/error.log
my nginx.conf has:
server {
listen 80;
server_name wordpress.bob;
root /Users/mark/Sites/wordpress;
include /usr/local/etc/nginx/global_restrictions.conf;
include /usr/local/etc/nginx/wordpress.conf;
location ~ \.php$ {
try_files $uri =404;
fastcgi_split_path_info ^(.+\.php)(/.+)$;
fastcgi_pass unix:/usr/local/var/run/php-www.sock;
fastcgi_index index.php;
include fastcgi_params;
}
}
wordpress.bob is a local hostname for testing pointing to 127.0.0.1 in etc/hosts
php-fpm.conf has:
listen = '/usr/local/var/run/php-www.sock'
Any ideas what I'm doing wrong?

Answer 1

It's hard to help without the ability to read all the configuration files.
You just posted one, not the included ones nor php-fpm.conf. This is not a disapproval (a wall of configuration files is not quite appropriate in a question) but it's just to point out that the configuration file we "don't see" may differ depending on installation.
Anyway I see some differences from the configuration file I have on a server for a wordpress site.
Here are some hints considering that as you don't get any errors php-fpm is running and nginx can "communicate" to it via the socket (otherwise you would get a bad gateway error).
At the beginning...
server {
listen 80;
server_name wordpress.bob;
root /Users/mark/Sites/wordpress;
index index.php; # <-- ADD THIS
Make sure in the included wordpress.conf you have
location / {
try_files $uri $uri/ /index.php?$args;
}
The last part...
location ~ \.php$ {
fastcgi_split_path_info ^(.+\.php)(/.+)$;
fastcgi_buffer_size 128k;
fastcgi_buffers 256 16k;
fastcgi_busy_buffers_size 256k;
fastcgi_temp_file_write_size 512k;
fastcgi_intercept_errors on;
fastcgi_max_temp_file_size 0;
fastcgi_connect_timeout 3s;
fastcgi_send_timeout 5s;
fastcgi_read_timeout 5s;
include fastcgi.conf; # <--- fastcgi.conf, NOT fastcgi_params
fastcgi_pass /usr/local/var/run/php-www.sock;
}
The difference between fastcgi.conf and fastcgi_params (on my installation) is just one line:
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
If this line is missing php code is not able to read $_SERVER['SCRIPT_FILENAME'] and (I think) this may break wordpress code resulting in empty output.
Finally make sure php-fpm worker processes have privileges to access /usr/local/var/run/php-www.sock
Usually the socket has the same owner:group of the workers.
The workers user and group is set in php-fpm.conf:
; Unix user/group of processes
; Note: The user is mandatory. If the group is not set, the default user's group
; will be used.
user = ......
group = ......

Answer 2

To install NGINX with Homebrew :
$ brew install nginx
Run NGINX :
$ sudo nginx
Test the localhost nginx :
http://localhost:8080
NGINX configuration file should be in :
$ /usr/local/etc/nginx/nginx.conf
If you want to change the default port :
$ sudo nginx -s stop
$ vim /usr/local/etc/nginx/nginx.conf
Change the : listen 8080;
To : listen 80;
To save and Conf and start NGINX run :
$ sudo nginx
Then, according to your problem, you might simply be pointing to a an empty PHP file. Try to print a phpinfo() then look for "DOCUMENT_ROOT" to see where it goes.