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How can I find out the path of the httpd.conf file on apache (PHP)? I do not know whether my script will be runned in windows apache or linux, i need to know where i can find this file in order to find a parameter from there. thanks!

user1700262
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6 Answers6

27

I think its not exposed to PHP. Run httpd -V in terminal and you will find it there (command name depends on your system/apache version, it can be also apache -V):

bash-3.2# httpd -V
Server version: Apache/2.2.22 (Unix)
Server built:   Aug 24 2012 17:16:58
Server's Module Magic Number: 20051115:30
Server loaded:  APR 1.4.5, APR-Util 1.3.12
Compiled using: APR 1.4.5, APR-Util 1.3.12
Architecture:   64-bit
Server MPM:     Prefork
  threaded:     no
    forked:     yes (variable process count)
Server compiled with....
 -D APACHE_MPM_DIR="server/mpm/prefork"
 -D APR_HAS_SENDFILE
 -D APR_HAS_MMAP
 -D APR_HAVE_IPV6 (IPv4-mapped addresses enabled)
 -D APR_USE_FLOCK_SERIALIZE
 -D APR_USE_PTHREAD_SERIALIZE
 -D SINGLE_LISTEN_UNSERIALIZED_ACCEPT
 -D APR_HAS_OTHER_CHILD
 -D AP_HAVE_RELIABLE_PIPED_LOGS
 -D DYNAMIC_MODULE_LIMIT=128
 -D HTTPD_ROOT="/usr"
 -D SUEXEC_BIN="/usr/bin/suexec"
 -D DEFAULT_PIDLOG="/private/var/run/httpd.pid"
 -D DEFAULT_SCOREBOARD="logs/apache_runtime_status"
 -D DEFAULT_LOCKFILE="/private/var/run/accept.lock"
 -D DEFAULT_ERRORLOG="logs/error_log"
 -D AP_TYPES_CONFIG_FILE="/private/etc/apache2/mime.types"
 -D SERVER_CONFIG_FILE="/private/etc/apache2/httpd.conf"     <-- HERE IT IS

but if you only want to know the value of some configuration variable then phpinfo(), getenv() or apache_getenv() should be enough

lupatus
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    Best answer so far. But there're additional problems: 1) Apache might not be in system's path 2) Apache instance might not be using default values -- Honestly, I doubt it's worth the effort. Whatever the problems is, there must be a better way to solve it than parsing Apache settings files (yes, there're normally more than one). – Álvaro González Nov 12 '12 at 09:50
  • Yeah, thats true, but if I would like to describe how to find config on every custom configuration I would have to write a book ;) In most cases that solution should work. – lupatus Nov 12 '12 at 10:09
  • apache2 -V worked for me to show me the location of the conf file. But apache2 -v actually showed me the version info. – codescribblr Aug 24 '17 at 01:16
  • mostly lower case `v` is assigned to version or verbose mode (but of course there is no such rule), my answer contains capital `V` – lupatus Aug 28 '17 at 21:22
  • On my system, SERVER_CONFIG_FILE was relative to HTTPD_ROOT – Jay Jun 03 '18 at 16:26
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This is a classic way to locate httpd.conf file:

# find / -name 'httpd.conf' -print

Also you can file locate the file using 

locate httpd.conf
Ganatra
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  • Thanks for this. I tried all of the other solutions on this thread and a couple others, but I kept getting `"conf/httpd.conf"` (a relative path). Using the `find` command was the only way I could get the absolute path for the configuration file. – Spencer D Nov 23 '15 at 18:14
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Look at the start of the output you get from phpinfo(), the basic apache configuration fodlers are shown there. So easiest is to make a trivial php script and call it once: 

<?php phpinfo(); ?>

Likewise you can also directly query these settings. Check the documentation!

arkascha
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  • Hi, I dont seem to be able to query all the settings that are diplayed in phpinfo();. Like in the apache2handler section there is Server Root that gives C:/AppServ/Apache2.2 which is exactly what I need. But ini_get('Server Root'); returns nothing.. – user1700262 Nov 12 '12 at 09:58
  • This is indeed correct, you can only query phps own ini commands/settings. Maybe you can use apaches mod_info? http://httpd.apache.org/docs/current/mod/mod_info.html – arkascha Nov 12 '12 at 10:05
  • Ah, and obviously you can 'scrape' that setting from the html output you get from `phpinfo()` by using a simple regex. – arkascha Nov 12 '12 at 10:07
  • how do i get the html text from phpinfo(); without printing it out? – user1700262 Nov 12 '12 at 13:14
  • `$info=file_get_contents('http://localhost/debug/info.php');` or wherever you have a `phpinfo()` call in a script. note that file_get_contents accepts urls as well as file paths. Not exactly elegant, but it works. – arkascha Nov 12 '12 at 13:30
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httpd -V

It will shows all compile settings, in the middle of the results you will find:

  • The Apache root directory: /usr/local/apache
  • The Apache config file path from the root directory: conf/httpd.conf

Apache conf file: /usr/local/apache/conf/httpd.conf

root@host [~]# httpd -V Server version: Apache/2.4.16 (Unix) Server built: Dec 15 2015 10:01:02 Cpanel::Easy::Apache v3.32.6 rev9999 Server's Module Magic Number: ... Server loaded: APR 1.5.2, APR-UTIL 1.5.4 Compiled using: APR 1.5.2, APR-UTIL 1.5.4 Architecture: 64-bit Server MPM: prefork threaded: no forked: yes (variable process count) Server compiled with.... -D APR_HAS_SENDFILE -D APR_HAS_MMAP -D APR_HAVE_IPV6 (IPv4-mapped addresses disabled) -D APR_USE_SYSVSEM_SERIALIZE -D APR_USE_PTHREAD_SERIALIZE -D SINGLE_LISTEN_UNSERIALIZED_ACCEPT -D APR_HAS_OTHER_CHILD -D AP_HAVE_RELIABLE_PIPED_LOGS -D DYNAMIC_MODULE_LIMIT=256 -D HTTPD_ROOT="/usr/local/apache" -D __SUEXEC_BIN="/usr/local/apache/bin/suexec" -D DEFAULT_PIDLOG="logs/httpd.pid" -D DEFAULT_SCOREBOARD="logs/apache_runtime_status" -D DEFAULT_ERRORLOG="logs/error_log" -D AP_TYPES_CONFIG_FILE="conf/mime.types" -D SERVER_CONFIG_FILE="conf/httpd.conf"

Slake
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Rajeshkumar
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0

if you are using xampp the file would be in this dir xampp\apache\conf

Dv_
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If it isn't listed in phpinfo(), perhaps use

apache_getenv(/* variable */)

http://www.php.net/manual/en/function.apache-getenv.php

Varon
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