Greetings,

Using a couple of tutorials, I believe I've got php-fpm correctly
wired into my existing nginx environment. Whenever I access a .php
page, I get a blank page in my browser. I can't figure out why.

I can confirm that lots of stuff is right. PHP by itself works fine.
If I shut down php-fpm, I get a "Bad Gateway" from nginx, so obviously
it's connecting to php-fpm. What's more, I have nginx and php-fpm
configured to give /status and /ping responses. These work fine, and
if I attempt to access a .php page, the 'accepted conn' values in the /
status response goes up.

I also am pretty sure that nginx is generally healthy. It's been
working serving .html files and acting as a HTTP file server, both
upload and download, for some time now. If I place a index.html file
right next to the index.php file and request that file, it is rendered
correctly.

I no very little about PHP...I'm just trying to get some existing web
pages working. Just to verify, if I take a very simple HTML page and
just rename it from foo.html to foo.php, it should render the same
way, right? That is, a .php file IS a HTML file, right? I ask
because I've tried this, and when I rename a working. html page
to .php and access it with the new name, I get a blank page.

I've bumped up all the log levels and have looked in both the php-fpm
and nginx logs. I see evidence of connections, but no errors or
additional information. I've also asked php-fpm to redirect stderr
and stdout to the logs.

Can anyone tell me what's going wrong or suggest how I should go about
troubleshooting this?

TIA for any help!

Steve

> Greetings,
>
> Using a couple of tutorials, I believe I've got php-fpm correctly
> wired into my existing nginx environment. Whenever I access a .php
> page, I get a blank page in my browser. I can't figure out why.

That's not uncommon.

However, with no details (which is astounding, given the size of your
post...) of your configuration provided, knowing what exactly is wrong
with your setup would be clairvoyance....
;-)

Good point.

I built PHP 5.3.6 like this:

./configure \
--with-layout=GNU \
--with-libdir=lib64 \
--enable-fpm \
--with-gd \
--enable-mbstring \
--enable-pcntl \
--enable-soap \
--enable-sockets \
--enable-sqlite-utf8 \
--enable-zip \
--with-zlib \
--with-curl \
--with-jpeg-dir \
--with-png-dir \
--with-zlib-dir \
--with-gettext \
--with-mcrypt \
--with-mysql \
--with-mysqli \
--with-pdo-mysql \
--with-pdo-sqlite \
--with-tidy \
--with-pear \
--disable-debug

Nginx 0.8.54 like this (a while ago):

./configure --with-http_ssl_module \
--add-module=./contrib/nginx_upload_module-2.2.0 \
--add-module=./contrib/masterzen-nginx-upload-progress-
module-8b55a34

and here are my config files...

php-fpm.conf:

;;;;;;;;;;;;;;;;;;;;;
; FPM Configuration ;
;;;;;;;;;;;;;;;;;;;;;

; All relative paths in this configuration file are relative to
PHP's install
; prefix (/usr/local). This prefix can be dynamicaly changed by
using the
; '-p' argument from the command line.

; Include one or more files. If glob(3) exists, it is used to
include a bunch of
; files from a glob(3) pattern. This directive can be used
everywhere in the
; file.
; Relative path can also be used. They will be prefixed by:
; - the global prefix if it's been set (-p arguement)
; - /usr/local otherwise
;include=etc/fpm.d/*.conf

;;;;;;;;;;;;;;;;;;
; Global Options ;
;;;;;;;;;;;;;;;;;;

[global]
; Pid file
; Note: the default prefix is /usr/local/var
; Default Value: none
pid = run/php-fpm.pid

; Error log file
; Note: the default prefix is /usr/local/var
; Default Value: log/php-fpm.log
error_log = log/php-fpm.log

; Log level
; Possible Values: alert, error, warning, notice, debug
; Default Value: notice
log_level = notice

; If this number of child processes exit with SIGSEGV or SIGBUS
within the time
; interval set by emergency_restart_interval then FPM will
restart. A value
; of '0' means 'Off'.
; Default Value: 0
;emergency_restart_threshold = 0

; Interval of time used by emergency_restart_interval to determine
when
; a graceful restart will be initiated. This can be useful to
work around
; accidental corruptions in an accelerator's shared memory.
; Available Units: s(econds), m(inutes), h(ours), or d(ays)
; Default Unit: seconds
; Default Value: 0
;emergency_restart_interval = 0

; Time limit for child processes to wait for a reaction on signals
from master.
; Available units: s(econds), m(inutes), h(ours), or d(ays)
; Default Unit: seconds
; Default Value: 0
;process_control_timeout = 0

; Send FPM to background. Set to 'no' to keep FPM in foreground
for debugging.
; Default Value: yes
;daemonize = yes

;;;;;;;;;;;;;;;;;;;;
; Pool Definitions ;
;;;;;;;;;;;;;;;;;;;;

; Multiple pools of child processes may be started with different
listening
; ports and different management options. The name of the pool
will be
; used in logs and stats. There is no limitation on the number of
pools which
; FPM can handle. Your system will tell you anyway :)

; Start a new pool named 'www'.
; the variable $pool can we used in any directive and will be
replaced by the
; pool name ('www' here)
[www]

; Per pool prefix
; It only applies on the following directives:
; - 'slowlog'
; - 'listen' (unixsocket)
; - 'chroot'
; - 'chdir'
; - 'php_values'
; - 'php_admin_values'
; When not set, the global prefix (or NONE) applies instead.
; Note: This directive can also be relative to the global prefix.
; Default Value: none
;prefix = /path/to/pools/$pool

; The address on which to accept FastCGI requests.
; Valid syntaxes are:
; 'ip.add.re.ss:port' - to listen on a TCP socket to a
specific address on
; a specific port;
; 'port' - to listen on a TCP socket to all
addresses on a
; specific port;
; '/path/to/unix/socket' - to listen on a unix socket.
; Note: This value is mandatory.
;listen = 127.0.0.1:9000
listen = 9000

; Set listen(2) backlog. A value of '-1' means unlimited.
; Default Value: 128 (-1 on FreeBSD and OpenBSD)
;listen.backlog = -1

; List of ipv4 addresses of FastCGI clients which are allowed to
connect.
; Equivalent to the FCGI_WEB_SERVER_ADDRS environment variable in
the original
; PHP FCGI (5.2.2+). Makes sense only with a tcp listening socket.
Each address
; must be separated by a comma. If this value is left blank,
connections will be
; accepted from any ip address.
; Default Value: any
;listen.allowed_clients = 127.0.0.1

; Set permissions for unix socket, if one is used. In Linux, read/
write
; permissions must be set in order to allow connections from a web
server. Many
; BSD-derived systems allow connections regardless of permissions.
; Default Values: user and group are set as the running user
; mode is set to 0666
;listen.owner = nobody
;listen.group = nobody
;listen.mode = 0666

; 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 = nobody
group = nobody

; Choose how the process manager will control the number of child
processes.
; Possible Values:
; static - a fixed number (pm.max_children) of child processes;
; dynamic - the number of child processes are set dynamically
based on the
; following directives:
; pm.max_children - the maximum number of
children that can
; be alive at the same time.
; pm.start_servers - the number of children
created on startup.
; pm.min_spare_servers - the minimum number of
children in 'idle'
; state (waiting to process).
If the number
; of 'idle' processes is less
than this
; number then some children
will be created.
; pm.max_spare_servers - the maximum number of
children in 'idle'
; state (waiting to process).
If the number
; of 'idle' processes is
greater than this
; number then some children
will be killed.
; Note: This value is mandatory.
pm = dynamic

; The number of child processes to be created when pm is set to
'static' and the
; maximum number of child processes to be created when pm is set
to 'dynamic'.
; This value sets the limit on the number of simultaneous requests
that will be
; served. Equivalent to the ApacheMaxClients directive with
mpm_prefork.
; Equivalent to the PHP_FCGI_CHILDREN environment variable in the
original PHP
; CGI.
; Note: Used when pm is set to either 'static' or 'dynamic'
; Note: This value is mandatory.
pm.max_children = 50

; The number of child processes created on startup.
; Note: Used only when pm is set to 'dynamic'
; Default Value: min_spare_servers + (max_spare_servers -
min_spare_servers) / 2
pm.start_servers = 20

; The desired minimum number of idle server processes.
; Note: Used only when pm is set to 'dynamic'
; Note: Mandatory when pm is set to 'dynamic'
pm.min_spare_servers = 5

; The desired maximum number of idle server processes.
; Note: Used only when pm is set to 'dynamic'
; Note: Mandatory when pm is set to 'dynamic'
pm.max_spare_servers = 35

; The number of requests each child process should execute before
respawning.
; This can be useful to work around memory leaks in 3rd party
libraries. For
; endless request processing specify '0'. Equivalent to
PHP_FCGI_MAX_REQUESTS.
; Default Value: 0
;pm.max_requests = 500

; The URI to view the FPM status page. If this value is not set,
no URI will be
; recognized as a status page. By default, the status page shows
the following
; information:
; accepted conn - the number of request accepted by the
pool;
; pool - the name of the pool;
; process manager - static or dynamic;
; idle processes - the number of idle processes;
; active processes - the number of active processes;
; total processes - the number of idle + active processes.
; max children reached - number of times, the process limit has
been reached,
; when pm tries to start more children
(works only for
; pm 'dynamic')
; The values of 'idle processes', 'active processes' and 'total
processes' are
; updated each second. The value of 'accepted conn' is updated in
real time.
; Example output:
; accepted conn: 12073
; pool: www
; process manager: static
; idle processes: 35
; active processes: 65
; total processes: 100
; max children reached: 1
; By default the status page output is formatted as text/plain.
Passing either
; 'html' or 'json' as a query string will return the corresponding
output
; syntax. Example:
; http://www.foo.bar/status
; http://www.foo.bar/status?json
; http://www.foo.bar/status?html
; Note: The value must start with a leading slash (/). The value
can be
; anything, but it may not be a good idea to use the .php
extension or it
; may conflict with a real PHP file.
; Default Value: not set
pm.status_path = /status

; The ping URI to call the monitoring page of FPM. If this value
is not set, no
; URI will be recognized as a ping page. This could be used to
test from outside
; that FPM is alive and responding, or to
; - create a graph of FPM availability (rrd or such);
; - remove a server from a group if it is not responding (load
balancing);
; - trigger alerts for the operating team (24/7).
; Note: The value must start with a leading slash (/). The value
can be
; anything, but it may not be a good idea to use the .php
extension or it
; may conflict with a real PHP file.
; Default Value: not set
ping.path = /ping

; This directive may be used to customize the response of a ping
request. The
; response is formatted as text/plain with a 200 response code.
; Default Value: pong
;ping.response = pong

; The timeout for serving a single request after which the worker
process will
; be killed. This option should be used when the
'max_execution_time' ini option
; does not stop script execution for some reason. A value of '0'
means 'off'.
; Available units: s(econds)(default), m(inutes), h(ours), or
d(ays)
; Default Value: 0
;request_terminate_timeout = 0

; The timeout for serving a single request after which a PHP
backtrace will be
; dumped to the 'slowlog' file. A value of '0s' means 'off'.
; Available units: s(econds)(default), m(inutes), h(ours), or
d(ays)
; Default Value: 0
;request_slowlog_timeout = 0

; The log file for slow requests
; Default Value: not set
; Note: slowlog is mandatory if request_slowlog_timeout is set
;slowlog = log/$pool.log.slow

; Set open file descriptor rlimit.
; Default Value: system defined value
;rlimit_files = 1024

; Set max core size rlimit.
; Possible Values: 'unlimited' or an integer greater or equal to 0
; Default Value: system defined value
;rlimit_core = 0

; Chroot to this directory at the start. This value must be
defined as an
; absolute path. When this value is not set, chroot is not used.
; Note: you can prefix with '$prefix' to chroot to the pool prefix
or one
; of its subdirectories. If the pool prefix is not set, the global
prefix
; will be used instead.
; Note: chrooting is a great security feature and should be used
whenever
; possible. However, all PHP paths will be relative to the
chroot
; (error_log, sessions.save_path, ...).
; Default Value: not set
;chroot =

; Chdir to this directory at the start.
; Note: relative path can be used.
; Default Value: current directory or / when chroot
;chdir = /var/www

; Redirect worker stdout and stderr into main error log. If not
set, stdout and
; stderr will be redirected to /dev/null according to FastCGI
specs.
; Note: on highloaded environement, this can cause some delay in
the page
; process time (several ms).
; Default Value: no
catch_workers_output = yes

; Pass environment variables like LD_LIBRARY_PATH. All $VARIABLEs
are taken from
; the current environment.
; Default Value: clean env
;env[HOSTNAME] = $HOSTNAME
;env[PATH] = /usr/local/bin:/usr/bin:/bin
;env[TMP] = /tmp
;env[TMPDIR] = /tmp
;env[TEMP] = /tmp

; Additional php.ini defines, specific to this pool of workers.
These settings
; overwrite the values previously defined in the php.ini. The
directives are the
; same as the PHP SAPI:
; php_value/php_flag - you can set classic ini
defines which can
; be overwritten from PHP call
'ini_set'.
; php_admin_value/php_admin_flag - these directives won't be
overwritten by
; PHP call 'ini_set'
; For php_*flag, valid values are on, off, 1, 0, true, false, yes
or no.

; Defining 'extension' will load the corresponding shared
extension from
; extension_dir. Defining 'disable_functions' or 'disable_classes'
will not
; overwrite previously defined php.ini values, but will append the
new value
; instead.

; Note: path INI options can be relative and will be expanded with
the prefix
; (pool, global or /usr/local)

; Default Value: nothing is defined by default except the values
in php.ini and
; specified at startup with the -d argument
;php_admin_value[sendmail_path] = /usr/sbin/sendmail -t -i -f
www@my.domain.com
;php_flag[display_errors] = off
;php_admin_value[error_log] = /var/log/fpm-php.www.log
;php_admin_flag[log_errors] = on
;php_admin_value[memory_limit] = 32M

nginx.conf:

#user nobody;
worker_processes 1;

#error_log logs/error.log;
#error_log logs/error.log notice;
#error_log logs/error.log info;

#pid logs/nginx.pid;


events {
worker_connections 1024;
}


http {
include mime.types;
default_type application/octet-stream;

#log_format main '$remote_addr - $remote_user [$time_local]
"$request" '
# '$status $body_bytes_sent "$http_referer" '
# '"$http_user_agent"
"$http_x_forwarded_for"';

#access_log logs/access.log main;

sendfile on;
#tcp_nopush on;

#keepalive_timeout 0;
keepalive_timeout 65;

#gzip on;

client_max_body_size 1000m;

upload_progress uploads 5m;

upstream backend_hello {
server unix:/tmp/fcgi-hello-1.socket;
}

# HTTP server
#
server {
listen 80 default;
root website;
index index.php;

location ~ ^/(status|ping)$ {
include fastcgi_params;
fastcgi_pass 127.0.0.1:9000;
fastcgi_param SCRIPT_FILENAME $fastcgi_script_name;
allow 127.0.0.1;
# allow stats_collector.localdomain;
# allow watchdog.localdomain;
# deny all;
}

location ~ \.php$ {
include /usr/local/nginx/conf/fastcgi_params;
fastcgi_index index.php;
if (-f $request_filename) {
fastcgi_pass 127.0.0.1:9000;
}
}

location /dreamworks {
rewrite ^(.*) https://$host$1 permanent;
}
}

# HTTPS server
#
server {
listen 443;
server_name files.digitalfish.com;

ssl on;
ssl_certificate /usr/local/nginx/conf/df.crt;
ssl_certificate_key /usr/local/nginx/conf/df.key;

ssl_session_timeout 5m;

ssl_protocols SSLv2 SSLv3 TLSv1;
ssl_ciphers ALL:!ADH:!EXPORT56:RC4+RSA:+HIGH:+MEDIUM:+LOW:
+SSLv2:+EXP;
ssl_prefer_server_ciphers on;

location /fcgi {
root html;
fastcgi_pass backend_hello;
fastcgi_param REQUEST_METHOD $request_method;
fastcgi_param CONTENT_TYPE $content_type;
fastcgi_param CONTENT_LENGTH $content_length;
fastcgi_param UPLOAD_FILE_NAME "$upload_file_name";
fastcgi_param UPLOAD_TMP_PATH "$upload_tmp_path";
}

location @frontcontroller {
rewrite ^ /fcgi/uploaded.html last;
}

location /progress {
report_uploads uploads;
}

location /upload {
#upload_pass /dreamworks/incoming/uploaded.html;
upload_pass @frontcontroller;
upload_store /usr/local/nginx/clients/dreamworks/
incoming;
upload_store_access user:r group:r all:r;
upload_set_form_field $upload_field_name.name
"$upload_file_name";
upload_set_form_field $upload_field_name.path
"$upload_tmp_path";
upload_set_form_field "XXXXX" "YYYYY";
upload_aggregate_form_field "$upload_field_name.sha1"
"$upload_file_sha1";
upload_aggregate_form_field "$upload_field_name.size"
"$upload_file_size";
upload_cleanup 400 404 499 500-505;
track_uploads uploads 5s;
}

location /dreamworks {
root clients;
#index index.html index.htm;
autoindex on;
auth_basic "Restricted";
auth_basic_user_file htpasswd/dreamworks;
}

location /client2 {
root clients;
index index.html index.htm;
auth_basic "Restricted";
auth_basic_user_file htpasswd/client2;
}

location / {
root html;
index index.html index.htm;
}
}
}

fastcgi.conf:


fastcgi_param SCRIPT_FILENAME $document_root
$fastcgi_script_name;
fastcgi_param QUERY_STRING $query_string;
fastcgi_param REQUEST_METHOD $request_method;
fastcgi_param CONTENT_TYPE $content_type;
fastcgi_param CONTENT_LENGTH $content_length;

fastcgi_param SCRIPT_NAME $fastcgi_script_name;
fastcgi_param REQUEST_URI $request_uri;
fastcgi_param DOCUMENT_URI $document_uri;
fastcgi_param DOCUMENT_ROOT $document_root;
fastcgi_param SERVER_PROTOCOL $server_protocol;

fastcgi_param GATEWAY_INTERFACE CGI/1.1;
fastcgi_param SERVER_SOFTWARE nginx/$nginx_version;

fastcgi_param REMOTE_ADDR $remote_addr;
fastcgi_param REMOTE_PORT $remote_port;
fastcgi_param SERVER_ADDR $server_addr;
fastcgi_param SERVER_PORT $server_port;
fastcgi_param SERVER_NAME $server_name;

# PHP only, required if PHP was built with --enable-force-cgi-
redirect
#fastcgi_param REDIRECT_STATUS 200;

Steve

On 5/10/2011 1:16 PM, rainer@ultra-secure.de wrote:
>> Greetings,
>>
>> Using a couple of tutorials, I believe I've got php-fpm correctly
>> wired into my existing nginx environment. Whenever I access a .php
>> page, I get a blank page in my browser. I can't figure out why.
> That's not uncommon.
>
> However, with no details (which is astounding, given the size of your
> post...) of your configuration provided, knowing what exactly is wrong
> with your setup would be clairvoyance....
> ;-)
>
>



On May 10, 1:16 pm, rai...@ultra-secure.de wrote:
> > Greetings,
>
> > Using a couple of tutorials, I believe I've got php-fpm correctly
> > wired into my existing nginx environment.  Whenever I access a .php
> > page, I get a blank page in my browser.  I can't figure out why.
>
> That's not uncommon.
>
> However, with no details (which is astounding, given the size of your
> post...) of your configuration provided, knowing what exactly is wrong
> with your setup would be clairvoyance....
> ;-)

Just went over this in the Russian forum. Adding the following line to fastcgi.conf helped:
fastcgi_param PATH_TRANSLATED $document_root$fastcgi_script_name;

PATH_TRANSLATED is not defined by default