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From John Iliffe <>
Subject [users@httpd] Error in serving PHP pages from mod_fcgid
Date Tue, 18 Apr 2017 15:53:31 GMT
Having spent considerable time chasing this problem around over the last 
few weeks (and a sincere thank you to Daniel for his assistance) here is 
some information that might save some time for somebody!

Apache 2.4.25 compiled from source
PHP 7.1.3 compiled from source
mod_fcgid downloaded from Apache and compiled from source
Fedora 25, Apache started from systemctl  

Couldn't find any configuration in the httpd.conf file that would allow either 
php-fpm OR mod_fcgid to serve dynamic pages.  Standard html worked fine, PHP 
scripts usually ended with either "File Not Found" or "No Input File 

Solution (?)

In the php.ini file there is a parameter "display_errors" that controls 
whether a script error is displayed on the served output page.  Some of 
these errors are really script errors but some can be run-time situations 
too, so displaying the offending line of code to the browser is rather 
dangerous.  Looks rather silly too.

Anyhow, if this parameter is set to On, the pages display fine; if it is set 
to Off, then the result is a served page that says:  "File not found".  The 
default is On but I turned it off before trying to get php-fpm working, and 
spent all this time chasing the problem.  

This isn't at all intuitive but I have reset this parameter both ways 
several times now with the same result.  You have to stop Apache and 
restart it between changes.  Note that the problem occurs even when the 
page has no errors.  (eg, phpinfo.php wouldn't run either)

So, good luck!


[here is the relevant part of php.ini

; This directive controls whether or not and where PHP will output errors,
; notices and warnings too. Error output is very useful during development, 
; it could be very dangerous in production environments. Depending on the 
; which is triggering the error, sensitive information could potentially 
; out of your application such as database usernames and passwords or 
; For production environments, we recommend logging errors rather than
; sending them to STDOUT.
; Possible Values:
;   Off = Do not display any errors
;   stderr = Display errors to STDERR (affects only CGI/CLI binaries!)
;   On or stdout = Display errors to STDOUT
; Default Value: On
; Development Value: On
; Production Value: Off
      display_errors = On        <----------
; display_errors = Off

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