get_cfg_var

(PHP 4, PHP 5)

get_cfg_var — Retourne la valeur d'une option de PHP

Description

string get_cfg_var ( string $option )

Retourne la valeur de l'option option de configuration PHP.

get_cfg_var() ne retourne pas les options qui ont été choisies lors de la compilation de PHP, ni ne lit dans le fichier de configuration d'Apache.

Pour vérifier si le système utilise le fichier de configuration, essayez de lire la valeur de cfg_file_path. Si cette valeur est disponible, alors le fichier de configuration est utilisé.

Liste de paramètres

option: Le nom de l'option de configuration.

Valeurs de retour

Retourne la valeur courante de l'option PHP varname ou bien FALSE si une erreur survient.

Voir aussi

get_current_user

extension_loaded

Last updated: Fri, 20 Jun 2008

add a note User Contributed Notes
get_cfg_var

froggywillneverdie at msn dot com
20-Dec-2007 12:31


It seems that this function doesn't work on Unix Operating Systems. Use ini_get(); instead. Just a warning to unsuspecting scripters.

Stephen
10-Jan-2007 11:21


Regarding the statement by the earlier poster that:



"Unfortunately, you almost never want to know the original value in the config file. Instead, you want to know the value currently in effect."



I have found this useful for changing the error reporting levels for a few specific pages while testing. I turn on all error_reporting while testing, but for a few pages I want to turn off notices. So, I put this at the top of the page:



error_reporting(8183);



and this at the bottom:



error_reporting(get_cfg_var('error_reporting'));



to put it back to whatever default I had at the time.

surfchen at gmail dot com
04-Sep-2006 07:00


get_cfg_var returns the value from php.ini directly,while the ini_get returns   the runtime config value. I have tried it on PHP 5.1.6

digitalife at 163 dot com
18-Jan-2003 01:51


ini_get() return the current value of the configuration option.

But the get_cfg_var() always get the value from config file, php.ini.  

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In PHP4.3.0��I test this in WindowXP��I found the Get_Cfg_Var() and ini_get() is same return the current value of the configuration,not from config file php.ini NOW!!!

verdana at php dot net
04-Dec-2002 10:16


ini_get() return the current value of the configuration option.

But the get_cfg_var() always get the value from config file, php.ini.



This is the test code:



ini_set('sendmail_from', 'verdana@263.net');



echo '<br /> <br />';



echo '<br /> Current Value:';

var_dump(ini_get('sendmail_from'));



echo '<br /> Value in cfg file:';

var_dump(get_cfg_var('sendmail_from'));

matt at ibforums dot com
28-May-2002 04:43


If you are using PHP 4.0+ (and if not, why not!) use ini_get().



This will return the local value - even if you've set it via apache in http.conf as I did during testing.

eric dot kidd at pobox dot com
11-Aug-2000 03:13


As implemented, this function is an odd wart--it calls cfg_get_string, which returns the value originally set in the config file, if any.





Unfortunately, you almost never want to know the original value in the config file. Instead, you want to know the value currently in effect. (These two values can be different if you have no php.ini file, or if you're setting options in httpd.conf or .htaccess files.)





To get the current value of a configuration option you should use ini_get() instead

add a note

get_current_user

extension_loaded

Last updated: Fri, 20 Jun 2008