PHP 4, PHP 5, PHP 7, PHP 8
ini_set - Sets the value of a configuration option
Code Examples

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

Sets the value of the given configuration option. The configuration option will keep this new value during the script's execution, and will be restored at the script's ending.



Not all the available options can be changed using ini_set. There is a list of all available options in the appendix.


The new value for the option.

Return Values

Returns the old value on success, false on failure.


Version Description
8.1.0 value now accepts any scalar type (including null). Previously, only string values were accepted.

Related Functions

Example of ini_set

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