Edit report at https://bugs.php.net/bug.php?id=55208&edit=1

 ID:                 55208
 Updated by:         f...@php.net
 Reported by:        loco at andrews dot lv
 Summary:            setting correct SCRIPT_NAME vs PHP_SELF is
                     impossible in certain circumstances
-Status:             Open
+Status:             Feedback
 Type:               Bug
 Package:            FPM related
 Operating System:   Gentoo Linux (2.6.39-gentoo-r3)
 PHP Version:        5.3.6
 Assigned To:        fat
 Block user comment: N
 Private report:     N

 New Comment:

SCRIPT_NAME is already defined in the fastcgi_params file. PHP_SELF doesn't 
have to be set in nginx as it's made in FPM.

Can you try the following nginx configuration please ?

location ~ ^.+\.php {
  include fastcgi_params;
  fastcgi_split_path_info ^(.+\.php)(.*)$;
  fastcgi_param PATH_INFO $fastcgi_path_info;
  fastcgi_param PATH_TRANSLATED $document_root$fastcgi_path_info;

  vastcgi_param PHP_VALUE "include_path=$document_root:$document_root/include";
  fastcgi_pass unix:/var/run/fastcgi/php-fpm.sock;

  try_files fastcgi_script_name =404;
}

it should be exactly the same as your configuration and it sould work.

thx
++ jerome


Previous Comments:
------------------------------------------------------------------------
[2011-07-17 08:02:25] loco at andrews dot lv

Hi Jerome,

I hope the information is now sufficient:

### nginx.conf:


# http part with fastcgi configuration:

http {
       fastcgi_pass_request_headers on;
       fastcgi_intercept_errors on;
       fastcgi_buffer_size 4k;
       fastcgi_buffers 1024 4k;

       index index.html;
       
}

# virtual host definition

server {
                listen 80;
                server_name .mysite.com;

                access_log /var/log/nginx/mysite.access_log main;
                error_log /var/log/nginx/mysite.error_log warn;

                root /opt/www/mysite.com;

                location / {
                  index index.php;
                }


                # if the request file name contains one of the below 
extensions, 
                # serve it directly 
                if ($request_filename ~* \.(css|js|ico|gif|png|bmp|jpe?
g|tiff?)$) {
                  break;
                }

                # otherwise, /index.php handles the request
                rewrite ^(.*)$ /index.php$1 last; 

                location ~ ^(?<SCRIPT_FILENAME>.+\.php)(?<PATH_INFO>.*)$ {
                  include fastcgi_params;
                  fastcgi_param PATH_INFO $PATH_INFO;
                  fastcgi_param PATH_TRANSLATED $document_root$PATH_INFO;
                  fastcgi_param SCRIPT_FILENAME $document_root$SCRIPT_FILENAME;

                  # Attention!  Both PHP_SELF and SCRIPT_NAME must contain the 
same value,
                  # but they don't! 
                  fastcgi_param PHP_SELF $uri;
                  fastcgi_param SCRIPT_NAME $uri;

                  # set SCRIPT_URL/SCRIPT_URI for compatibility
                  fastcgi_param SCRIPT_URL $PATH_INFO;
                  fastcgi_param SCRIPT_URI $scheme://$http_host$PATH_INFO;

                  fastcgi_param PHP_VALUE 
"include_path=$document_root:$document_root/include";
  
                  try_files $SCRIPT_FILENAME =404;
                  fastcgi_pass unix:/var/run/fastcgi/php-fpm.sock;
                }
       }


### php-fpm.conf


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

[global]
pid = /var/run/php-fpm.pid
error_log = /var/log/php-fpm.log
log_level = debug

emergency_restart_threshold = 7
emergency_restart_interval = 2

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

[www]
; pool www

listen = /var/run/fastcgi/php-fpm.sock
;listen.backlog = -1
listen.backlog = 4096
;listen.allowed_clients = 127.0.0.1
listen.owner = www
listen.group = www
;listen.mode = 0660

user = www
group = www

pm = dynamic
pm.max_children = 100
pm.start_servers = 2
pm.min_spare_servers = 2
pm.max_spare_servers = 4
pm.max_requests = 500
pm.status_path = /fpm-status-1
request_terminate_timeout = 3605

request_slowlog_timeout = 30
slowlog = /var/log/php-fpm-slow.log
catch_workers_output = yes

env[HOSTNAME] = $HOSTNAME


### php.ini

# scripts simply don't work with cgi.fix_pathinfo=0
# nginx reporting "404 File not found" when set to 0
# I don't use cgi.fix_pathinfo actually, since
# I parse SCRIPT_FILENAME and PATH_INFO directly
# in the nginx location block (see nginx.conf)
# with PCRE capturing
cgi.fix_pathinfo=1


## test case: index.php

<?php
  # prints out $_SERVER environment variables
  # please check SCRIPT_NAME and PHP_SELF !
  print '<pre>';
  print_r($_SERVER);
  print '</pre>';
?>

------------------------------------------------------------------------
[2011-07-17 07:10:00] f...@php.net

Not enough information was provided for us to be able
to handle this bug. Please re-read the instructions at
http://bugs.php.net/how-to-report.php

If you can provide more information, feel free to add it
to this bug and change the status back to "Open".

Thank you for your interest in PHP.


Hi,

I'm not able to reproduce the problem on my side. Can you please provide the 
following information:

1- nginx configuration (I need the doc_root and the fastcgi and location 
configuration):
  * server {
  *   ...
  *   root ...;
  *   ...
  *   location ~ \.php {
  *     fastcgi_pass 127.0.0.1:9000;
  *     fastcgi_split_path_info ^(.+\.php)(.*)$;
  *     fastcgi_param PATH_INFO $fastcgi_path_info;
  *     fastcgi_param PATH_TRANSLATED $document_root$fastcgi_path_info;
  *     include fastcgi.conf;
  *   }
  * }

2- PHP-FPM [pool] configuration
3- ini settings cgi.fix_pathinfo

Thx
++ jerome

------------------------------------------------------------------------
[2011-07-14 15:55:40] loco at andrews dot lv

Description:
------------
I am running nginx 1.0.4 with php-fpm and php 5.3.6.

It seems that PHP_SELF has strong dependency on the setting of SCRIPT_NAME.  
When setting SCRIPT_NAME to something, $_SERVER['PHP_SELF'] will contain 
PHP_SELF environment value concatenated with environment value of SCRIPT_NAME.  
If SCRIPT_NAME is not set to anything, then $_SERVER['PHP_SELF'] contains what 
is passed to the environment, however, since SCRIPT_NAME is not set, PHP 
scripts 
that rely on SCRIPT_NAME will not work. 


Example #1:

accessing URL:  /index.php/some/url

setting server variables:
SCRIPT_NAME /some/url
PHP_SELF /some/url

result:

print $_SERVER['SCRIPT_NAME']; // outputs: "/some/url"  - OK
print $_SERVER['PHP_SELF']; // outputs: "/some/url//some/url" - NOT OK!

Example #2:

SCRIPT_NAME (unset)
PHP_SELF /some/url

result:

print $_SERVER['SCRIPT_NAME'];  // outputs: ""
print $_SERVER['PHP_SELF']; // outputs: "/some/url"

Example #3:

SCRIPT_NAME /some/url
PHP_SELF (unset)

result:

print $_SERVER['SCRIPT_NAME'];  // outputs: "/some/url"
print $_SERVER['PHP_SELF'];  // outputs: ""
---

Bottom line: if configured as demonstrated in the first example, scripts that 
rely on SCRIPT_NAME will work properly, but scripts that require PHP_SELF won't 
work, as it contains the invalid URL;  if configured as shown in the second 
example, scripts that rely on PHP_SELF work properly, but scripts that require 
SCRIPT_NAME, don't work at all;  lastly, if configured as in the third example, 
scripts that use SCRIPT_NAME will work properly, but scripts that use PHP_SELF 
won't work, as PHP_SELF is empty.


Any workaround for this issue?  

When using mod_php with apache, both SCRIPT_NAME and PHP_SELF can be set to the 
same value, and will be interpreted by PHP exactly like they are passed.  
However, in FCGI/PHP-FPM environment I cannot find a way to set them both to 
the 
same value! 

How is $_SERVER['PHP_SELF'] being constructed?  
Why should it rely on SCRIPT_NAME at all?  
How to set server environment correctly, so it is the same under FastCGI and 
under mod_php / apache 2.2?

Andrejs

Test script:
---------------
<?php

   print '<pre>';
   printf("SCRIPT_NAME: \"%s\"\n", $_SERVER['SCRIPT_NAME']);
   printf("PHP_SELF:    \"%s\"\n", $_SERVER['PHP_SELF']);
   print '</pre>';
?>


Expected result:
----------------
I'd thought PHP_SELF should be possible to define explicitly through the server 
environment, without other variables affecting it's value.  How come is it so 
that 
in the apache/mod_php mode both SCRIPT_NAME and PHP_SELF contain the same 
value?  
This does not seem to be possible in the FastCGI environment, at least when 
using 
php-fpm.  



------------------------------------------------------------------------



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