get_cfg_var

Function • Params and return types changed in PHP 8.0

Gets the value of a PHP configuration option.

PHP 5
PHP 7
PHP 8.0
Improved
PHP 8.1
PHP 8.2-8.3
PHP 8.4
PHP 8.5
PHP 8.6

get_cfg_var Function synopsis

get_cfg_var(string $option): array|string|false

Parameters

$option

Typestring

The configuration option name.

$option accepts one of the following string values:

  • allow_call_time_pass_reference
  • allow_url_fopen
  • allow_url_include
  • always_populate_raw_post_data

Return value

Typearray|string|false

Returns the current value of the PHP configuration variable specified by $option, or false if an error occurs.

Changes to the get_cfg_var Function

PHP 8.0

  • Return type added: array|string|false
  • Parameter name of parameter #1 changed: $option_name to $option
  • Parameter type added for parameter #1 ($option): string
- get_cfg_var($option_name)
+ get_cfg_var(string $option): array|string|false

get_cfg_var Function Availability

PHP VersionAvailability
PHP 8.6Upcoming Release Yes
PHP 8.5Supported (Latest) Yes
PHP 8.4Supported Yes
PHP 8.3Security-Fixes Only Yes
PHP 8.2Security-Fixes Only Yes
PHP 8.1Unsupported Yes
PHP 8.0Unsupported Yes
PHP 7.4Unsupported Yes
PHP 7.3Unsupported Yes
PHP 7.2Unsupported Yes
PHP 7.1Unsupported Yes
PHP 7.0Unsupported Yes
PHP 5.6Unsupported Yes
PHP 5.5Unsupported Yes
PHP 5.4Unsupported Yes
PHP 5.3Unsupported Yes