The behaviour of these functions is affected by settings in php.ini.
||PHP_INI_ALL||Available since Imagick 2.1.0|
||PHP_INI_SYSTEM||Available since Imagick 2.2.2|
||PHP_INI_SYSTEM||Available since Imagick 3.3.0|
Here's a short explanation of the configuration directives.
Fixes a drawing bug with locales that use ',' as float separators.
Used to enable the image progress monitor.
When Imagick is loaded, it checks the version number of ImageMagick that it was compiled against, with the version number that is currently being used and will give a warning if they don't match. This warning can be suppressed by enabling this ini setting.
Using a version of Imagick that was compiled against a different version of ImageMagick than the one being used is not recommended. Although it may appear to work, it can lead to random crashes or other undefined behaviour.