How can I know which 'php.ini' file is used?

Question

I search the path where the php.ini file is located in our Linux Ubuntu server, and I found many php.ini files when executing the command find / -name php.ini. So how can I know exactly from a PHP script web page where the php.ini is located?

Answer 1

php --ini 

For the webserver-SAPIs use phpinfo()

Here's some sample output:

bash-3.2# php --ini Configuration File (php.ini) Path: /usr/local/php5/lib Loaded Configuration File:         /usr/local/php5/lib/php.ini Scan for additional .ini files in: /usr/local/php5/php.d Additional .ini files parsed:      /usr/local/php5/php.d/10-extension_dir.ini, /usr/local/php5/php.d/20-extension-opcache.ini, /usr/local/php5/php.d/40-openssl.ini, /usr/local/php5/php.d/50-extension-apcu.ini, /usr/local/php5/php.d/50-extension-curl.ini, /usr/local/php5/php.d/50-extension-gmp.ini, /usr/local/php5/php.d/50-extension-imap.ini, /usr/local/php5/php.d/50-extension-intl.ini, /usr/local/php5/php.d/50-extension-mcrypt.ini, /usr/local/php5/php.d/50-extension-mssql.ini, /usr/local/php5/php.d/50-extension-pdo_pgsql.ini, /usr/local/php5/php.d/50-extension-pgsql.ini, /usr/local/php5/php.d/50-extension-propro.ini, /usr/local/php5/php.d/50-extension-raphf.ini, /usr/local/php5/php.d/50-extension-readline.ini, /usr/local/php5/php.d/50-extension-xdebug.ini, /usr/local/php5/php.d/50-extension-xsl.ini, /usr/local/php5/php.d/60-extension-pecl_http.ini, /usr/local/php5/php.d/99-liip-developer.ini 

Answer 2

You can use php_ini_loaded_file().

Taken from php.net:

$inipath = php_ini_loaded_file(); if ($inipath) {     echo 'Loaded php.ini: ' . $inipath; } else {     echo 'A php.ini file is not loaded'; } 

You may also want to check php_ini_scanned_files().

Also, you should note that if you run a PHP script from CLI, it's possible that a different php.ini file will be used than if a server (e.g., nginx or Apache) runs it.

Other options:

• php -i|grep 'php.ini'
• create info.php that contains <?php phpinfo(); in the webroot, and run it in your browser