get_cfg_var

(PHP 4, PHP 5)

get_cfg_varRetourne 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 option ou bien FALSE si une erreur survient.

Historique

Version Description
5.3.0 get_cfg_var() a été modifié afin de permettre de retourner un tableau de directives.

Voir aussi

  • ini_get() - Lit la valeur d'une option de configuration
  • ini_get_all() - Lit toutes les valeurs de configuration

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User Contributed Notes 5 notes

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4
surfchen at gmail dot com
8 years ago
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

[EDIT by danbrown AT php DOT net: The author of this note means that ini_get() will return values set by ini_set(), .htaccess, a local php.ini file, and other functions at runtime.  Conversely, get_cfg_var() will return strictly the server php.ini.]
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1
tbrix13 at uzitech dot com
4 months ago
keep in mind get_cfg_var() returns a string(1) '1' for the value: On

<?php
//in php.ini
//A = On

$A1 = get_cfg_var("A") === "On";
$A2 = get_cfg_var("A") === 1;
$A3 = get_cfg_var("A") === "1";

//$A1 is false
//$A2 is false
//$A3 is true
?>
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0
techno dot rahul1988 at gmail dot com
6 months ago
The difference between ini_get() and get_cfg_var() is as follows:
@) ini_get(): returns the current value in .htaccess or as defined in PHP_INI_USER or PHP_INI_PERDIR
@) get_cfg_var: returns the values defined in the php.ini
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0
gabriel b
1 year ago
settings with the value of 'yes' will be returned as '1'.

<?php
//#my ini file
//A = 1
//B = any-thing
//C = yes
//D = /some/path/file

get_cfg_var('A') // returns '1'
get_cfg_var('B') // returns 'any-thing'
get_cfg_var('C') // returns '1', wait, why?
get_cfg_var('D') // returns '/some/path/file'
?>

I had my setting = yes and then checked it as ==="yes" for epic fail.
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0
Stephen
7 years ago
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:

<?php
error_reporting
(8183);
?>

and this at the bottom:

<?php
error_reporting
(get_cfg_var('error_reporting'));
?>

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