## Runtime Configuration

The behaviour of these functions is affected by settings in php.ini.

Image Configure Options
Name | Default | Changeable | Changelog
--- | --- | --- | ---
gd.jpeg_ignore_warning | "1" | PHP_INI_ALL | Available since PHP 5.1.3.

For further details and definitions of the PHP_INI_* modes, see the Where a configuration setting may be set.

Here's a short explanation of the configuration directives.

`gd.jpeg_ignore_warning` bool

  Ignore warnings (but not errors) created by libjpeg(-turbo).

Changelog for gd.jpeg_ignore_warning
Version | Description
--- | ---
7.1.0 | The default of gd.jpeg_ignore_warning has been changed from 0 to 1.

See also the exif configuration directives.

Warning

Image functions are very memory intensive. Be sure to set memory_limit high enough, if you are using the bundled version of the GD library.