ini_set

Function • Params changed in PHP 8.1

Sets the value of a configuration option.

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

ini_set Function synopsis

ini_set(string $option, string|int|float|bool|null $value): string|false

Parameters

$option

Typestring

$option accepts one of the following string values:

  • allow_call_time_pass_reference
  • allow_url_fopen
  • allow_url_include
  • always_populate_raw_post_data
$value

Typestring|int|float|bool|null

The new value for the option.

Return value

Typestring|false

Returns the old value on success, false on failure.

Changes to the ini_set Function

PHP 8.1

  • Parameter type changed for parameter #2 ($value): string to string|int|float|bool|null
- ini_set(string $option, string $value): string|false
+ ini_set(string $option, string|int|float|bool|null $value): string|false

PHP 8.0

  • Return type added: string|false
  • Parameter name of parameter #1 changed: $varname to $option
  • Parameter type added for parameter #1 ($option): string
  • Parameter name of parameter #2 changed: $newvalue to $value
  • Parameter type added for parameter #2 ($value): string
- ini_set($varname, $newvalue)
+ ini_set(string $option, string $value): string|false

ini_set 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